#27BF21

sRGB: 39 / 191 / 33

Distant whispers awaken with sunrise
Restless constellations transform the fabric of existence
Distant echoes surrender to silence

#27BF21 belongs to the green family. Its hex code tells a screen to mix 39 red, 191 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 117.7° lands in the green region. Its 70.5% saturation makes it strong in color at this lightness. HSL lightness is 43.9% 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 (8.56:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 39, 191, 33
HSL: 117.72°, 70.54%, 43.92%
HSV / HSB: 117.72°, 82.72%, 74.90%
CMYK (approx.): 79.58%, 0.00%, 82.72%, 25.10%
CIE XYZ (D65, Y = 100 for white): 19.741, 37.801, 7.695
CIELAB (D65, 2° observer): 67.874, -65.417, 61.928
WCAG relative luminance: 0.37803
24-bit decimal: 2604833

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 #27BF21 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: 8.56:1

Normal text: AAA
Large text: AAA

White text: 2.45:1

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.

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

#B921BF sits half a turn (180°) from #27BF21 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.

#27BF21 #B921BF

Analogous

#76BF21 and #21BF6A sit 30° to either side of #27BF21. 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.

#76BF21 #27BF21 #21BF6A

Triadic

#27BF21, #2127BF and #BF2127 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#27BF21 #2127BF #BF2127

Split complementary

Start at #27BF21 and look across the wheel. #6A21BF and #BF2176 sit 30° to either side of its exact opposite, giving you two different accent choices.

#27BF21 #6A21BF #BF2176

Square

Starting with #27BF21, each quarter turn (90°) takes you to the next hue: #2176BF, #B921BF, then #BF6A21. Across the square, #27BF21 pairs with #B921BF, and #2176BF with #BF6A21.

#27BF21 #2176BF #B921BF #BF6A21

Tetradic

#27BF21 and #B921BF are opposites, as are #21BFB9 and #BF2127. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#27BF21 #21BFB9 #B921BF #BF2127

Tints

Mixing #27BF21 with white in 20% steps produces this scale. The first mixture, #52CC4D, keeps 80% of the original. By #D4F2D3, the mixture is 80% white.

#27BF21 #52CC4D #7DD97A #A9E5A6 #D4F2D3 #FFFFFF

Shades

Mixing #27BF21 with black in 20% steps produces this scale. The first mixture, #1F991A, keeps 80% of the original. By #082607, the mixture is 80% black.

#27BF21 #1F991A #177314 #104C0D #082607 #000000

Tones

Mixing #27BF21 with middle gray in 20% steps produces this scale. The first mixture, #39B234, keeps 80% of the original. By #6E8D6D, the mixture is 80% middle gray.

#27BF21 #39B234 #4BA647 #5C995A #6E8D6D #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

#27BF21

RGB

rgb(39 191 33)

HSL

hsl(117.722 70.536% 43.922%)

CSS example

.color-sample {
  background-color: #27BF21;
  color: #000000;
}

Channel breakdown

RGB

#27BF21 uses 39 red, 191 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 15.3%

Green 74.9%

Blue 12.9%

CMYK

A simple CMYK estimate for #27BF21 is 79.6% cyan, 0.0% magenta, 82.7% yellow and 25.1% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 79.6%

Magenta 0.0%

Yellow 82.7%

Black 25.1%

Nearby colors

The nearest shorthand match is #22BB22. Its matching digit pairs let you write it as #2B2 in CSS. For a modern design, keep #27BF21 when you want an exact match. Use its web-safe neighbor, #33CC33, when matching a legacy palette of 216 colors.

Nearest shorthand: #22BB22 Nearest web-safe: #33CC33

Gradient to complement

#27BF21 #3FA53B #588A56 #707070 #88568A #A13BA5 #B921BF

Color vision previews

Compare how #27BF21 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.

#C3AC00

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.

#B3A136

Tritanopia

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

#00B9A3

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.

#A2B213

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.

#9AAC2F

Tritanomaly (50%)

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

#34BC69

Grayscale (luminance)

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

#A5A5A5

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.

#7BB37B

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 0.02029 G 0.52100 B 0.01521

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 0.36426 G 0.73823 B 0.25257

Linear Display P3

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

R 0.10918 G 0.50438 B 0.05191

CIE xyY

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

x 0.303 y 0.579 Y 37.801

CMY

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

C % 84.706 M % 25.098 Y % 87.059

Binary RGB

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

00100111 10111111 00100001