#31500A

sRGB · 49 / 80 / 10

#31500A belongs to the yellow-green family. Its hex code tells a screen to mix 49 red, 80 green and 10 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 86.6° lands in the yellow-green region. Its 77.8% saturation makes it strong in color at this lightness. HSL lightness is 17.6% 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 (9.20:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 49, 80, 10
HSL: 86.57°, 77.78%, 17.65%
HSV / HSB: 86.57°, 87.50%, 31.37%
CMYK (approx.): 38.75%, 0.00%, 87.50%, 68.63%
CIE XYZ (D65, Y = 100 for white): 4.190, 6.412, 1.304
CIELAB (D65, 2° observer): 30.429, -23.497, 34.294
WCAG relative luminance: 0.06412
24-bit decimal: 3231754

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 #31500A 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 · 2.28:1

Normal text: Fail
Large text: Fail

White text · 9.20:1

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

#290A50 sits half a turn (180°) from #31500A 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.

#31500A #290A50

Analogous

#504C0A and #0E500A sit 30° to either side of #31500A. 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.

#504C0A #31500A #0E500A

Triadic

#31500A, #0A3150 and #500A31 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#31500A #0A3150 #500A31

Split complementary

Start at #31500A and look across the wheel. #0A0E50 and #4C0A50 sit 30° to either side of its exact opposite, giving you two different accent choices.

#31500A #0A0E50 #4C0A50

Square

Starting with #31500A, each quarter turn (90°) takes you to the next hue: #0A504C, #290A50, then #500A0E. Across the square, #31500A pairs with #290A50, and #0A504C with #500A0E.

#31500A #0A504C #290A50 #500A0E

Tetradic

#31500A and #290A50 are opposites, as are #0A5029 and #500A31. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#31500A #0A5029 #290A50 #500A31

Tints

Mixing #31500A with white in 20% steps produces this scale. The first mixture, #5A733B, keeps 80% of the original. By #D6DCCE, the mixture is 80% white.

#31500A #5A733B #83966C #ADB99D #D6DCCE #FFFFFF

Shades

Mixing #31500A with black in 20% steps produces this scale. The first mixture, #274008, keeps 80% of the original. By #0A1002, the mixture is 80% black.

#31500A #274008 #1D3006 #142004 #0A1002 #000000

Tones

Mixing #31500A with middle gray in 20% steps produces this scale. The first mixture, #415A22, keeps 80% of the original. By #707668, the mixture is 80% middle gray.

#31500A #415A22 #516339 #606D51 #707668 #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

#31500A

RGB

rgb(49 80 10)

HSL

hsl(86.571 77.778% 17.647%)

CSS example

.color-sample {
  background-color: #31500A;
  color: #FFFFFF;
}

Channel breakdown

RGB

#31500A uses 49 red, 80 green and 10 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 19.2%

Green 31.4%

Blue 3.9%

CMYK

A simple CMYK estimate for #31500A is 38.7% cyan, 0.0% magenta, 87.5% yellow and 68.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 38.7%

Magenta 0.0%

Yellow 87.5%

Black 68.6%

Nearby colors

The nearest shorthand match is #335511. Its matching digit pairs let you write it as #351 in CSS. For a modern design, keep #31500A when you want an exact match. Use its web-safe neighbor, #336600, when matching a legacy palette of 216 colors.

Nearest shorthand · #335511 Nearest web-safe · #336600

Gradient to complement

#31500A #304416 #2E3921 #2D2D2D #2C2139 #2A1644 #290A50

Color vision previews

Compare how #31500A 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.

#544900

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.

#504712

Tritanopia

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

#324C43

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.

#4A4B05

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.

#484A0F

Tritanomaly (50%)

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

#334E29

Grayscale (luminance)

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

#484848

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.

#3E4C33

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 0.03071 G 0.08022 B 0.00304

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 0.21948 G 0.31056 B 0.09386

Linear Display P3

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

R 0.03950 G 0.07858 B 0.00910

CIE xyY

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

x 0.352 y 0.539 Y 6.412

CMY

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

C % 80.784 M % 68.627 Y % 96.078

Binary RGB

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

00110001 01010000 00001010