#00A644

sRGB · 0 / 166 / 68

#00A644 belongs to the green-cyan family. Its hex code tells a screen to mix 0 red, 166 green and 68 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 144.6° lands in the green-cyan 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 (6.54:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 0, 166, 68
HSL: 144.58°, 100.00%, 32.55%
HSV / HSB: 144.58°, 100.00%, 65.10%
CMYK (approx.): 100.00%, 0.00%, 59.04%, 34.90%
CIE XYZ (D65, Y = 100 for white): 14.679, 27.689, 10.040
CIELAB (D65, 2° observer): 59.606, -57.629, 40.007
WCAG relative luminance: 0.27690
24-bit decimal: 42564

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 #00A644 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 · 6.54:1

Normal text: AA
Large text: AAA

White text · 3.21:1

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. 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

#A60062 sits half a turn (180°) from #00A644 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.

#00A644 #A60062

Analogous

#0FA600 and #00A697 sit 30° to either side of #00A644. 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.

#0FA600 #00A644 #00A697

Triadic

#00A644, #4400A6 and #A64400 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#00A644 #4400A6 #A64400

Split complementary

Start at #00A644 and look across the wheel. #9700A6 and #A6000F sit 30° to either side of its exact opposite, giving you two different accent choices.

#00A644 #9700A6 #A6000F

Square

Starting with #00A644, each quarter turn (90°) takes you to the next hue: #000FA6, #A60062, then #A69700. Across the square, #00A644 pairs with #A60062, and #000FA6 with #A69700.

#00A644 #000FA6 #A60062 #A69700

Tetradic

#00A644 and #A60062 are opposites, as are #0062A6 and #A64400. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#00A644 #0062A6 #A60062 #A64400

Tints

Mixing #00A644 with white in 20% steps produces this scale. The first mixture, #33B869, keeps 80% of the original. By #CCEDDA, the mixture is 80% white.

#00A644 #33B869 #66CA8F #99DBB4 #CCEDDA #FFFFFF

Shades

Mixing #00A644 with black in 20% steps produces this scale. The first mixture, #008536, keeps 80% of the original. By #00210E, the mixture is 80% black.

#00A644 #008536 #006429 #00421B #00210E #000000

Tones

Mixing #00A644 with middle gray in 20% steps produces this scale. The first mixture, #1A9E50, keeps 80% of the original. By #668874, the mixture is 80% middle gray.

#00A644 #1A9E50 #33975C #4D8F68 #668874 #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

#00A644

RGB

rgb(0 166 68)

HSL

hsl(144.578 100.000% 32.549%)

CSS example

.color-sample {
  background-color: #00A644;
  color: #000000;
}

Channel breakdown

RGB

#00A644 uses 0 red, 166 green and 68 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 0.0%

Green 65.1%

Blue 26.7%

CMYK

A simple CMYK estimate for #00A644 is 100.0% cyan, 0.0% magenta, 59.0% 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 59.0%

Black 34.9%

Nearby colors

The nearest shorthand match is #00AA44. Its matching digit pairs let you write it as #0A4 in CSS. For a modern design, keep #00A644 when you want an exact match. Use its web-safe neighbor, #009933, when matching a legacy palette of 216 colors.

Nearest shorthand · #00AA44 Nearest web-safe · #009933

Gradient to complement

#00A644 #1C8A49 #376F4E #535353 #6F3758 #8A1C5D #A60062

Color vision previews

Compare how #00A644 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.

#A8963A

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.

#988B4C

Tritanopia

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

#00A291

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.

#899B41

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.

#829549

Tritanomaly (50%)

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

#15A368

Grayscale (luminance)

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

#909090

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.

#689B72

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 0.05781

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 0.31376

Linear Display P3

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

R 0.06770 G 0.36867 B 0.08024

CIE xyY

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

x 0.280 y 0.528 Y 27.689

CMY

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

C % 100.000 M % 34.902 Y % 73.333

Binary RGB

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

00000000 10100110 01000100