#40C708

sRGB · 64 / 199 / 8

#40C708 belongs to the yellow-green family. Its hex code tells a screen to mix 64 red, 199 green and 8 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 102.4° lands in the yellow-green region. Its 92.3% saturation makes it strong in color at this lightness. HSL lightness is 40.6% on a scale from black (0%) to white (100%). Of black and white lettering, black has the clearer light-to-dark separation on this background (9.39:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 64, 199, 8
HSL: 102.41°, 92.27%, 40.59%
HSV / HSB: 102.41°, 95.98%, 78.04%
CMYK (approx.): 67.84%, 0.00%, 95.98%, 21.96%
CIE XYZ (D65, Y = 100 for white): 22.581, 41.953, 7.137
CIELAB (D65, 2° observer): 70.838, -64.629, 69.086
WCAG relative luminance: 0.41954
24-bit decimal: 4245256

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 #40C708 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 · 9.39:1

Normal text: AAA
Large text: AAA

White text · 2.24:1

Normal text: Fail
Large text: Fail

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

#8F08C7 sits half a turn (180°) from #40C708 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.

#40C708 #8F08C7

Analogous

#9FC708 and #08C730 sit 30° to either side of #40C708. 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.

#9FC708 #40C708 #08C730

Triadic

#40C708, #0840C7 and #C70840 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#40C708 #0840C7 #C70840

Split complementary

Start at #40C708 and look across the wheel. #2F08C7 and #C708A0 sit 30° to either side of its exact opposite, giving you two different accent choices.

#40C708 #2F08C7 #C708A0

Square

Starting with #40C708, each quarter turn (90°) takes you to the next hue: #08A0C7, #8F08C7, then #C72F08. Across the square, #40C708 pairs with #8F08C7, and #08A0C7 with #C72F08.

#40C708 #08A0C7 #8F08C7 #C72F08

Tetradic

#40C708 and #8F08C7 are opposites, as are #08C78F and #C70840. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#40C708 #08C78F #8F08C7 #C70840

Tints

Mixing #40C708 with white in 20% steps produces this scale. The first mixture, #66D239, keeps 80% of the original. By #D9F4CE, the mixture is 80% white.

#40C708 #66D239 #8CDD6B #B3E99C #D9F4CE #FFFFFF

Shades

Mixing #40C708 with black in 20% steps produces this scale. The first mixture, #339F06, keeps 80% of the original. By #0D2802, the mixture is 80% black.

#40C708 #339F06 #267705 #1A5003 #0D2802 #000000

Tones

Mixing #40C708 with middle gray in 20% steps produces this scale. The first mixture, #4DB920, keeps 80% of the original. By #738E68, the mixture is 80% middle gray.

#40C708 #4DB920 #5AAB38 #669C50 #738E68 #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

#40C708

RGB

rgb(64 199 8)

HSL

hsl(102.408 92.271% 40.588%)

CSS example

.color-sample {
  background-color: #40C708;
  color: #000000;
}

Channel breakdown

RGB

#40C708 uses 64 red, 199 green and 8 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 25.1%

Green 78.0%

Blue 3.1%

CMYK

A simple CMYK estimate for #40C708 is 67.8% cyan, 0.0% magenta, 96.0% yellow and 22.0% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 67.8%

Magenta 0.0%

Yellow 96.0%

Black 22.0%

Nearby colors

The nearest shorthand match is #44CC00. Its matching digit pairs let you write it as #4C0 in CSS. For a modern design, keep #40C708 when you want an exact match. Use its web-safe neighbor, #33CC00, when matching a legacy palette of 216 colors.

Nearest shorthand · #44CC00 Nearest web-safe · #33CC00

Gradient to complement

#40C708 #4DA728 #5A8748 #686868 #754887 #8228A7 #8F08C7

Color vision previews

Compare how #40C708 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.

#CDB400

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.

#BDA92D

Tritanopia

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

#27C0A9

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.

#ACBA00

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.

#A5B424

Tritanomaly (50%)

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

#49C36A

Grayscale (luminance)

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

#ADADAD

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.

#85BB7F

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 0.05127 G 0.57112 B 0.00243

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 0.41492 G 0.76978 B 0.23327

Linear Display P3

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

R 0.14356 G 0.55387 B 0.04443

CIE xyY

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

x 0.315 y 0.585 Y 41.953

CMY

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

C % 74.902 M % 21.961 Y % 96.863

Binary RGB

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

01000000 11000111 00001000