#683021

sRGB · 104 / 48 / 33

#683021 belongs to the red family. Its hex code tells a screen to mix 104 red, 48 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 12.7° lands in the red region. Its 51.8% saturation makes it partway between gray and the most vivid version of this hue at this lightness. HSL lightness is 26.9% 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 (10.33:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 104, 48, 33
HSL: 12.68°, 51.82%, 26.86%
HSV / HSB: 12.68°, 68.27%, 40.78%
CMYK (approx.): 0.00%, 53.85%, 68.27%, 59.22%
CIE XYZ (D65, Y = 100 for white): 7.040, 5.167, 2.066
CIELAB (D65, 2° observer): 27.206, 23.752, 21.157
WCAG relative luminance: 0.05167
24-bit decimal: 6828065

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 #683021 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 · 2.03:1

Normal text: Fail
Large text: Fail

White text · 10.33:1

Normal text: AAA
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

#215968 sits half a turn (180°) from #683021 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.

#683021 #215968

Analogous

#682135 and #685321 sit 30° to either side of #683021. 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.

#682135 #683021 #685321

Triadic

#683021, #216830 and #302168 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#683021 #216830 #302168

Split complementary

Start at #683021 and look across the wheel. #216853 and #213668 sit 30° to either side of its exact opposite, giving you two different accent choices.

#683021 #216853 #213668

Square

Starting with #683021, each quarter turn (90°) takes you to the next hue: #366821, #215968, then #542168. Across the square, #683021 pairs with #215968, and #366821 with #542168.

#683021 #366821 #215968 #542168

Tetradic

#683021 and #215968 are opposites, as are #596821 and #302168. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#683021 #596821 #215968 #302168

Tints

Mixing #683021 with white in 20% steps produces this scale. The first mixture, #86594D, keeps 80% of the original. By #E1D6D3, the mixture is 80% white.

#683021 #86594D #A4837A #C3ACA6 #E1D6D3 #FFFFFF

Shades

Mixing #683021 with black in 20% steps produces this scale. The first mixture, #53261A, keeps 80% of the original. By #150A07, the mixture is 80% black.

#683021 #53261A #3E1D14 #2A130D #150A07 #000000

Tones

Mixing #683021 with middle gray in 20% steps produces this scale. The first mixture, #6D4034, keeps 80% of the original. By #7B706D, the mixture is 80% middle gray.

#683021 #6D4034 #725047 #76605A #7B706D #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

#683021

RGB

rgb(104 48 33)

HSL

hsl(12.676 51.825% 26.863%)

CSS example

.color-sample {
  background-color: #683021;
  color: #FFFFFF;
}

Channel breakdown

RGB

#683021 uses 104 red, 48 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 40.8%

Green 18.8%

Blue 12.9%

CMYK

A simple CMYK estimate for #683021 is 0.0% cyan, 53.8% magenta, 68.3% yellow and 59.2% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 0.0%

Magenta 53.8%

Yellow 68.3%

Black 59.2%

Nearby colors

The nearest shorthand match is #663322. Its matching digit pairs let you write it as #632 in CSS. For a modern design, keep #683021 when you want an exact match. Use its web-safe neighbor, #663333, when matching a legacy palette of 216 colors.

Nearest shorthand · #663322 Nearest web-safe · #663333

Gradient to complement

#683021 #5C372D #503E39 #454545 #394B50 #2D525C #215968

Color vision previews

Compare how #683021 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.

#3F391F

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.

#4C4520

Tritanopia

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

#72252D

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.

#51371F

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.

#553E20

Tritanomaly (50%)

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

#692F26

Grayscale (luminance)

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

#404040

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.

#573933

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 0.13843 G 0.02956 B 0.01521

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 0.37973 G 0.20021 B 0.14443

Linear Display P3

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

R 0.11910 G 0.03317 B 0.01835

CIE xyY

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

x 0.493 y 0.362 Y 5.167

CMY

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

C % 59.216 M % 81.176 Y % 87.059

Binary RGB

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

01101000 00110000 00100001