#398317

sRGB: 57 / 131 / 23

#398317 belongs to the yellow-green family. Its hex code tells a screen to mix 57 red, 131 green and 23 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 101.1° lands in the yellow-green region. Its 70.1% saturation makes it strong in color at this lightness. HSL lightness is 30.2% 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 (4.74:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 57, 131, 23
HSL: 101.11°, 70.13%, 30.20%
HSV / HSB: 101.11°, 82.44%, 51.37%
CMYK (approx.): 56.49%, 0.00%, 82.44%, 48.63%
CIE XYZ (D65, Y = 100 for white): 9.958, 17.164, 3.599
CIELAB (D65, 2° observer): 48.466, -42.157, 46.968
WCAG relative luminance: 0.17164
24-bit decimal: 3769111

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 #398317 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: 4.43:1

Normal text: Fail
Large text: AA

White text: 4.74:1

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.

Reference: 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

#611783 sits half a turn (180°) from #398317 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.

#398317 #611783

Analogous

#6F8317 and #17832B sit 30° to either side of #398317. 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.

#6F8317 #398317 #17832B

Triadic

#398317, #173983 and #831739 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#398317 #173983 #831739

Split complementary

Start at #398317 and look across the wheel. #2B1783 and #83176F sit 30° to either side of its exact opposite, giving you two different accent choices.

#398317 #2B1783 #83176F

Square

Starting with #398317, each quarter turn (90°) takes you to the next hue: #176F83, #611783, then #832B17. Across the square, #398317 pairs with #611783, and #176F83 with #832B17.

#398317 #176F83 #611783 #832B17

Tetradic

#398317 and #611783 are opposites, as are #178361 and #831739. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#398317 #178361 #611783 #831739

Tints

Mixing #398317 with white in 20% steps produces this scale. The first mixture, #619C45, keeps 80% of the original. By #D7E6D1, the mixture is 80% white.

#398317 #619C45 #88B574 #B0CDA2 #D7E6D1 #FFFFFF

Shades

Mixing #398317 with black in 20% steps produces this scale. The first mixture, #2E6912, keeps 80% of the original. By #0B1A05, the mixture is 80% black.

#398317 #2E6912 #224F0E #173409 #0B1A05 #000000

Tones

Mixing #398317 with middle gray in 20% steps produces this scale. The first mixture, #47822C, keeps 80% of the original. By #72816B, the mixture is 80% middle gray.

#398317 #47822C #558241 #648156 #72816B #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

#398317

RGB

rgb(57 131 23)

HSL

hsl(101.111 70.130% 30.196%)

CSS example

.color-sample {
  background-color: #398317;
  color: #FFFFFF;
}

Channel breakdown

RGB

#398317 uses 57 red, 131 green and 23 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 22.4%

Green 51.4%

Blue 9.0%

CMYK

A simple CMYK estimate for #398317 is 56.5% cyan, 0.0% magenta, 82.4% yellow and 48.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 56.5%

Magenta 0.0%

Yellow 82.4%

Black 48.6%

Nearby colors

The nearest shorthand match is #338811. Its matching digit pairs let you write it as #381 in CSS. For a modern design, keep #398317 when you want an exact match. Use its web-safe neighbor, #339900, when matching a legacy palette of 216 colors.

Nearest shorthand: #338811 Nearest web-safe: #339900

Gradient to complement

#398317 #407129 #465F3B #4D4D4D #543B5F #5A2971 #611783

Color vision previews

Compare how #398317 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.

#877700

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.

#7E7124

Tritanopia

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

#327E6F

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.

#737B0F

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.

#6F7720

Tritanomaly (50%)

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

#3D8147

Grayscale (luminance)

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

#737373

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.

#5C7B55

Reference: National Eye Institute: Types of Color Vision Deficiency

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 0.04092 G 0.22697 B 0.00857

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 0.30142 G 0.50723 B 0.17159

Linear Display P3

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

R 0.07395 G 0.22079 B 0.02493

CIE xyY

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

x 0.324 y 0.559 Y 17.164

CMY

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

C % 77.647 M % 48.627 Y % 90.980

Binary RGB

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

00111001 10000011 00010111