#81663E

sRGB · 129 / 102 / 62

#81663E belongs to the orange family. Its hex code tells a screen to mix 129 red, 102 green and 62 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 35.8° lands in the orange region. Its 35.1% saturation makes it partway between gray and the most vivid version of this hue at this lightness. HSL lightness is 37.5% on a scale from black (0%) to white (100%). Of black and white lettering, white has the clearer light-to-dark separation on this background (5.38:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 129, 102, 62
HSL: 35.82°, 35.08%, 37.45%
HSV / HSB: 35.82°, 51.94%, 50.59%
CMYK (approx.): 0.00%, 20.93%, 51.94%, 49.41%
CIE XYZ (D65, Y = 100 for white): 14.674, 14.518, 6.587
CIELAB (D65, 2° observer): 44.967, 5.440, 26.608
WCAG relative luminance: 0.14518
24-bit decimal: 8480318

CMYK uses a profile-free approximation. Printed output depends on the press, ink and paper. Lab uses a D65 white point.

Text contrast

Contrast tells you how clearly lettering separates from #81663E in light and dark. The ratio compares relative luminance, a measure of light weighted for human vision. Identical colors give 1:1 and black against white gives 21:1. A ratio of 2.99:1 falls just below the 3:1 AA minimum for large text. Body text needs at least 4.5:1 because its finer strokes are harder to distinguish.

Black text · 3.90:1

Normal text: Fail
Large text: AA

White text · 5.38:1

Normal text: AA
Large text: AAA

AA and AAA are WCAG accessibility levels. AAA sets a higher bar: 7:1 for normal text and 4.5:1 for large text. Large text begins at 18 pt regular or 14 pt bold. Ratings use the unrounded ratio. WCAG text contrast guidance

Palettes & scales

Harmonies rotate the hue. Scales mix the starting color with white, black or middle gray in 20% steps in encoded sRGB.

Complementary

#3E5981 sits half a turn (180°) from #81663E on the HSL wheel. Keeping saturation and lightness steady while crossing to the opposite hue gives you a contrasting accent. Check text contrast separately before using the pair for lettering.

#81663E #3E5981

Analogous

#81453E and #7A813E sit 30° to either side of #81663E. The three hues are neighbors on the wheel, so you can change the color of a border or highlight while keeping it close to the original.

#81453E #81663E #7A813E

Triadic

#81663E, #3E8166 and #663E81 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#81663E #3E8166 #663E81

Split complementary

Start at #81663E and look across the wheel. #3E7A81 and #453E81 sit 30° to either side of its exact opposite, giving you two different accent choices.

#81663E #3E7A81 #453E81

Square

Starting with #81663E, each quarter turn (90°) takes you to the next hue: #3E8145, #3E5981, then #813E7A. Across the square, #81663E pairs with #3E5981, and #3E8145 with #813E7A.

#81663E #3E8145 #3E5981 #813E7A

Tetradic

#81663E and #3E5981 are opposites, as are #59813E and #663E81. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#81663E #59813E #3E5981 #663E81

Tints

Mixing #81663E with white in 20% steps produces this scale. The first mixture, #9A8565, keeps 80% of the original. By #E6E0D8, the mixture is 80% white.

#81663E #9A8565 #B3A38B #CDC2B2 #E6E0D8 #FFFFFF

Shades

Mixing #81663E with black in 20% steps produces this scale. The first mixture, #675232, keeps 80% of the original. By #1A140C, the mixture is 80% black.

#81663E #675232 #4D3D25 #342919 #1A140C #000000

Tones

Mixing #81663E with middle gray in 20% steps produces this scale. The first mixture, #816B4B, keeps 80% of the original. By #807B73, the mixture is 80% middle gray.

#81663E #816B4B #817058 #807666 #807B73 #808080

Copy color codes

Hex, RGB and HSL are three ways to write this screen color. Paste any of them into a CSS color property.

Hex

#81663E

RGB

rgb(129 102 62)

HSL

hsl(35.821 35.079% 37.451%)

CSS example

.color-sample {
  background-color: #81663E;
  color: #FFFFFF;
}

Channel breakdown

RGB

#81663E uses 129 red, 102 green and 62 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 50.6%

Green 40.0%

Blue 24.3%

CMYK

A simple CMYK estimate for #81663E is 0.0% cyan, 20.9% magenta, 51.9% yellow and 49.4% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 20.9%

Yellow 51.9%

Black 49.4%

Nearby colors

The nearest shorthand match is #886644. Its matching digit pairs let you write it as #864 in CSS. For a modern design, keep #81663E when you want an exact match. Use its web-safe neighbor, #996633, when matching a legacy palette of 216 colors.

Nearest shorthand · #886644 Nearest web-safe · #996633

Gradient to complement

#81663E #766449 #6B6254 #606060 #545D6B #495B76 #3E5981

Color vision previews

Compare how #81663E appears in each simulation. When two chart lines or status indicators become hard to tell apart, a label, shape or line pattern gives readers another way to distinguish them. Individual perception varies.

Protanopia

A red–green color vision deficiency. Without a distinct response from long-wavelength cones, some reds and greens can look alike, and reds can appear darker.

#70673B

Deuteranopia

A red–green color vision deficiency. Without a distinct response from medium-wavelength cones, some greens can be difficult to distinguish from reds or browns.

#776D3F

Tritanopia

A blue–yellow color vision deficiency. Without a distinct response from short-wavelength cones, blue can resemble green, and yellow can resemble pink.

#8B5F5C

Protanomaly (50%)

An altered long-wavelength cone response can make reds appear dimmer and harder to distinguish from greens. This swatch shows the model’s halfway setting.

#77673C

Deuteranomaly (50%)

An altered medium-wavelength cone response can reduce the visible difference between reds and greens. This swatch shows the model’s halfway setting.

#7A6A3E

Tritanomaly (50%)

An altered short-wavelength cone response can make blue harder to distinguish from green. This swatch shows the model’s halfway setting.

#82644B

Grayscale (luminance)

This design check removes hue and preserves relative luminance so you can compare light and dark areas.

#6A6A6A

Partial grayscale (50% blend)

This design check mixes the original color halfway toward its grayscale equivalent in linear light. Use it to see how a design holds up as color fades.

#766858

Technical reference

CAM16 and CIECAM02 below assume D65 white, an average surround, background Y of 20 against white at 100, and adapting luminance of 4.07 cd/m².

Linear sRGB

These channels scale with emitted light. Use them for lighting calculations and physically meaningful blends.

R 0.21953 G 0.13287 B 0.04817

Display P3

P3 displays can reproduce a wider range of reds and greens. These coordinates reproduce this same sRGB swatch on a color-managed P3 display.

R 0.48916 G 0.40408 B 0.26533

Linear Display P3

These P3 channels are proportional to light, before display encoding.

R 0.20414 G 0.13574 B 0.05723

CIE xyY

The x and y coordinates locate chromaticity on a diagram. Y gives relative luminance on a scale where white is 100.

x 0.410 y 0.406 Y 14.518

CMY

Ideal cyan, magenta and yellow are the complements of the encoded red, green and blue channels.

C % 49.412 M % 60.000 Y % 75.686

Binary RGB

Each eight-bit group represents one channel. Together they store the 24-bit hex color.

10000001 01100110 00111110