Color Name
Slate Gray*
Hex Color Code
#66788B
RGB Color Code
RGB(102, 120, 139)
CMYK Values*
26.6%, 13.7%, 0.0%, 45.5%
#66788B hex color. RGB, RYB, CMYK, HSL, HSV codes and color conversions. Matching color names, palettes, paints.

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What color is 66788B?

The RGB color code for color number #66788B is RGB(102, 120, 139). In the RGB color model, #66788B has a red value of 102, a green value of 120, and a blue value of 139. The CMYK color model (also known as process color, used in color printing) comprises 26.6% cyan, 13.7% magenta, 0.0% yellow, and 45.5% key (black). The HSL color scale has a hue of 210.8° (degrees), 15.4 % saturation, and 47.3 % lightness. In the HSB/HSV color space, #66788B has a hue of 210.8° (degrees), 26.6 % saturation and 54.5 % brightness/value.

Color 66788B is cool or warm?

Color 66788B is a cool color.

What is the LRV of #66788B? (For interior and product design)

66788B has an LRV of nearly 18.1. By LRV value, it is a medium dark color.

Light Reflectance Value (LRV) is a measure of how much visible light is reflected off a surface. It is a number on a scale of 0 to 100, with 0 being pure black and 100 being pure white. The higher the LRV, the more light the color reflects and the lighter it will appear.

Dark Color
#66788B
LRV 18.1
Light Color

Compare LRV 18.1 of #66788B with dark and light color

Is #66788B Readable? WCAG Contrast Checker (For digital design)

Check if the color 66788B meets Web Content Accessibility Guidelines (WCAG) standards, minimum contrast ratio standards between text and background colors. The WCAG (Web Content Accessibility Guidelines) provides global standards for readable web content.

WCAG Recommendations - Large Text: above 18pt or 14pt bold. Normal Text: below 18pt or 14pt bold.

  • Minimum contrast ratio (AA): 4.5 for normal text and 3 for large text.
  • Enhanced contrast ratio (AAA): 7 for normal text and 4.5 for large text.

Normal text - 14pt

Normal Bold text - 12pt


Large text - 18pt

Large Bold text - 14pt

Color Codes - Color Space Conversions

HEX #66788B color codes / color number / color space conversions - RGBA, HSL, HSV/HSB, HYZ, CMY, HWB, RYB

HEX #66788B
Hex triplet
#66788B
Red
66
Green
78
Blue
8B
RGBA / RGB rgb(102, 120, 139)
Red
102 (40.0%)
Green
120 (47.1%)
Blue
139 (54.5%)
Alpha
1 (100.0%)
CMYK
Cyan
26.62%
Magenta
13.67%
Yellow
0.00%
Key
45.49%
HSL hsl(210.81deg, 15.4 %, 47.3 %)
Hue
210.81°
Saturation
15.35 %
Lightness
47.25 %
HSV / HSB
Hue
210.81°
Saturation
26.62 %
Brightness / Value
54.51 %
RYB ryb(71, 94, 119)
Red
71 (27.6%)
Yellow
94 (36.7%)
Blue
119 (46.6%)
HWB
Hue
210.81°
Whiteness
40.00 %
Blackness
45.49 %
CMY
Cyan
60.00%
Magenta
52.94%
Yellow
45.49%
XYZ
X
16.86
Y
18.12
Z
27.04
YXY
Y1
18.12
X
0.27
Y2
0.29
CIE-Lab
L
49.64
A
-2.03
B
-12.53
CIE-Lch
L
49.64
C
12.69
H
260.8
CIE-Luv
L
49.64
U
-10.01
V
-17.61
Hunter-Lab
L
42.57
A
-3.82
B
-7.86
Other
LRV
~ 18.1 %
Munsell Color System
7.5B 4.8/2.5

Color Names, Similar Colors and Paint

What is Delta E (ΔE)?

Delta E is the standard measure of how different two colors look to the human eye, rather than how far apart their hex codes happen to be. It runs from 0, an exact match, to 100, the largest possible difference — so the lower the Delta E, the closer the match. The match percentage shown on each color below is simply 100% minus its ΔE.

ΔE 0
Identical – an exact match
ΔE under 1
Not perceptible; the eye cannot separate them
ΔE 1 – 2
Perceptible only on close, side-by-side inspection
ΔE 2 – 10
Perceptible at a glance
ΔE over 10
Reads as a different color altogether

Color Name of HEX #66788B

These are the named colors closest to hex 66788B, closest match first. Each card shows how much of the color the human eye sees as the same, measured as Delta E (ΔE).

#708090 Color Slate Gray
96.57% match | ΔE 3.43
#778899 Color Light Slate Gray
93.79% match | ΔE 6.21
#536878 Color Payne's Gray
93.16% match | ΔE 6.84

Similar colors from Pantone, RAL and other color matching system


RAL Design

RAL Design color similar/equivalent to 66788B.


British Standard 4800

British Standard 4800 color similar/equivalent to 66788B.


Pantone TCX

Pantone TCX color similar/equivalent to 66788B.


RAL Classic

RAL Classic color similar/equivalent to 66788B.


Pantone PMS

Pantone PMS color similar/equivalent to 66788B.

#688197 Color PANTONE 2165 C
96.22% match | ΔE 3.78
#57728B Color PANTONE 2166 C
96.09% match | ΔE 3.91
#616E80 Color PANTONE 4136 C
95.93% match | ΔE 4.07
#6A7F9D Color PANTONE 8181 C
95.07% match | ΔE 4.93

Paint color for Hex #66788B

These are the real paint colors closest to hex 66788B from major brands, ranked by Delta E (ΔE) match. A paint above 98% will be hard to tell apart from 66788B once it is on a wall.


Behr

Hex color 66788B similar/equivalent paint from Behr. Conversion of hex #66788B to Behr


PPG Paints

Hex color 66788B similar/equivalent paint from PPG Paints. Conversion of hex #66788B to PPG Paints


Valspar

Hex color 66788B similar/equivalent paint from Valspar. Conversion of hex #66788B to Valspar


Sherwin Williams

Hex color 66788B similar/equivalent paint from Sherwin Williams. Conversion of hex #66788B to Sherwin Williams


Benjamin Moore

Hex color 66788B similar/equivalent paint from Benjamin Moore. Conversion of hex #66788B to Benjamin Moore


Dunn-Edwards

Hex color 66788B similar/equivalent paint from Dunn-Edwards. Conversion of hex #66788B to Dunn-Edwards


Farrow & Ball

Hex color 66788B similar/equivalent paint from Farrow & Ball. Conversion of hex #66788B to Farrow & Ball

#5C6576 Color Wine Dark (308)
92.34% match | ΔE 7.66
#748284 Color De Nimes (299)
91.08% match | ΔE 8.92
#7C8E96 Color Selvedge (306)
90.32% match | ΔE 9.68
#6A8FB2 Color Cook's Blue (237)
90.21% match | ΔE 9.79

Color Combinations and Matching Colors

#66788B color palettes and scheme combination

Monochromatic Color Palette

Monochromatic colors belong to the same hue angle but different tints and shades. Monochromatic color palette can be generated by keeping the exact hue of the base color and then changing the saturation and lightness.

Analogous Color Palette

Analogous colors are a group of colors adjacent to each other on a color wheel. Group of these adjacent colors forms Analogous color scheme Palette. Analogous Palette can be generated by increasing or decreasing the hue value by 30 points.

Triadic Color Palette

The triadic color palette has three colors separated by 120° in the RGB color wheel

Tetradic Color Palette

The tetradic colour scheme composed of two sets of complementary colors in a rectangular shape on the color wheel.

Complementary / Opposite Color

#66788B
Slate Gray*
#8B7966
Mocha*

Complementary / Opposite Color

Complementary colors are pairs of colors which, when combined or mixed, cancel each other out (lose hue) by producing a grayscale color like white or black. When placed next to each other, they create the strongest contrast for those two colors. Complementary colors also called opposite colors. Complementary color schemes are created using two opposite colors on the color wheel. The examples are red–cyan, green–magenta, and blue–yellow.

What is the contrasting color of #66788B?

Color that best contrast with #66788B is #8B7966, color name is Mocha*. Contrast indicates a strong difference in color. Contrasting color can be found several ways, Complimentary contrast is one of them. Complementary contrast colors are opposite each other on the color wheel.

What color compliments #66788B?

Complementary or Opposite color for #66788B is #8B7966, color name is Mocha*.

Color Images and Mockup

Mobile app mockup example for #66788B color
T-Shirt mockup example for #66788B color
Chart visualization example with #66788B color

#66788B Color Images and Patterns