#00A615

sRGB: 0 / 166 / 21

#00A615 belongs to the green family. Its hex code tells a screen to mix 0 red, 166 green and 21 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 127.6° lands in the green region. Its 100.0% saturation makes it strong in color at this lightness. HSL lightness is 32.5% 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 (6.47:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 0, 166, 21
HSL: 127.59°, 100.00%, 32.55%
HSV / HSB: 127.59°, 100.00%, 65.10%
CMYK (approx.): 100.00%, 0.00%, 87.35%, 34.90%
CIE XYZ (D65, Y = 100 for white): 13.771, 27.325, 5.258
CIELAB (D65, 2° observer): 59.274, -61.846, 56.957
WCAG relative luminance: 0.27327
24-bit decimal: 42517

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 #00A615 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: 6.47:1

Normal text: AA
Large text: AAA

White text: 3.25:1

Normal text: Fail
Large text: AA

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

#A60091 sits half a turn (180°) from #00A615 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.

#00A615 #A60091

Analogous

#3EA600 and #00A668 sit 30° to either side of #00A615. 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.

#3EA600 #00A615 #00A668

Triadic

#00A615, #1500A6 and #A61500 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#00A615 #1500A6 #A61500

Split complementary

Start at #00A615 and look across the wheel. #6800A6 and #A6003E sit 30° to either side of its exact opposite, giving you two different accent choices.

#00A615 #6800A6 #A6003E

Square

Starting with #00A615, each quarter turn (90°) takes you to the next hue: #003EA6, #A60091, then #A66800. Across the square, #00A615 pairs with #A60091, and #003EA6 with #A66800.

#00A615 #003EA6 #A60091 #A66800

Tetradic

#00A615 and #A60091 are opposites, as are #0091A6 and #A61500. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#00A615 #0091A6 #A60091 #A61500

Tints

Mixing #00A615 with white in 20% steps produces this scale. The first mixture, #33B844, keeps 80% of the original. By #CCEDD0, the mixture is 80% white.

#00A615 #33B844 #66CA73 #99DBA1 #CCEDD0 #FFFFFF

Shades

Mixing #00A615 with black in 20% steps produces this scale. The first mixture, #008511, keeps 80% of the original. By #002104, the mixture is 80% black.

#00A615 #008511 #00640D #004208 #002104 #000000

Tones

Mixing #00A615 with middle gray in 20% steps produces this scale. The first mixture, #1A9E2A, keeps 80% of the original. By #66886B, the mixture is 80% middle gray.

#00A615 #1A9E2A #339740 #4D8F55 #66886B #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

#00A615

RGB

rgb(0 166 21)

HSL

hsl(127.590 100.000% 32.549%)

CSS example

.color-sample {
  background-color: #00A615;
  color: #000000;
}

Channel breakdown

RGB

#00A615 uses 0 red, 166 green and 21 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 0.0%

Green 65.1%

Blue 8.2%

CMYK

A simple CMYK estimate for #00A615 is 100.0% cyan, 0.0% magenta, 87.3% yellow and 34.9% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 100.0%

Magenta 0.0%

Yellow 87.3%

Black 34.9%

Nearby colors

The nearest shorthand match is #00AA11. Its matching digit pairs let you write it as #0A1 in CSS. For a modern design, keep #00A615 when you want an exact match. Use its web-safe neighbor, #009900, when matching a legacy palette of 216 colors.

Nearest shorthand: #00AA11 Nearest web-safe: #009900

Gradient to complement

#00A615 #1C8A2A #376F3E #535353 #6F3768 #8A1C7C #A60091

Color vision previews

Compare how #00A615 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.

#AA9500

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.

#9B8B2A

Tritanopia

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

#00A18D

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.

#8B9A04

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.

#849524

Tritanomaly (50%)

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

#19A359

Grayscale (luminance)

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

#8F8F8F

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.

#679B69

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 0.00000 G 0.38133 B 0.00750

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 0.28856 G 0.64112 B 0.20422

Linear Display P3

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

R 0.06770 G 0.36867 B 0.03444

CIE xyY

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

x 0.297 y 0.589 Y 27.325

CMY

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

C % 100.000 M % 34.902 Y % 91.765

Binary RGB

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

00000000 10100110 00010101