#74FB21

sRGB: 116 / 251 / 33

#74FB21 belongs to the yellow-green family. Its hex code tells a screen to mix 116 red, 251 green and 33 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 97.2° lands in the yellow-green region. Its 96.5% saturation makes it strong in color at this lightness. HSL lightness is 55.7% 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 (15.56:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 116, 251, 33
HSL: 97.16°, 96.46%, 55.69%
HSV / HSB: 97.16°, 86.85%, 98.43%
CMYK (approx.): 53.78%, 0.00%, 86.85%, 1.57%
CIE XYZ (D65, Y = 100 for white): 41.972, 72.815, 13.282
CIELAB (D65, 2° observer): 88.359, -69.068, 80.748
WCAG relative luminance: 0.72817
24-bit decimal: 7666465

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 #74FB21 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: 15.56:1

Normal text: AAA
Large text: AAA

White text: 1.35:1

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

#A821FB sits half a turn (180°) from #74FB21 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.

#74FB21 #A821FB

Analogous

#E1FB21 and #21FB3B sit 30° to either side of #74FB21. 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.

#E1FB21 #74FB21 #21FB3B

Triadic

#74FB21, #2174FB and #FB2174 are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#74FB21 #2174FB #FB2174

Split complementary

Start at #74FB21 and look across the wheel. #3B21FB and #FB21E1 sit 30° to either side of its exact opposite, giving you two different accent choices.

#74FB21 #3B21FB #FB21E1

Square

Starting with #74FB21, each quarter turn (90°) takes you to the next hue: #21E1FB, #A821FB, then #FB3B21. Across the square, #74FB21 pairs with #A821FB, and #21E1FB with #FB3B21.

#74FB21 #21E1FB #A821FB #FB3B21

Tetradic

#74FB21 and #A821FB are opposites, as are #21FBA8 and #FB2174. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#74FB21 #21FBA8 #A821FB #FB2174

Tints

Mixing #74FB21 with white in 20% steps produces this scale. The first mixture, #90FC4D, keeps 80% of the original. By #E3FED3, the mixture is 80% white.

#74FB21 #90FC4D #ACFD7A #C7FDA6 #E3FED3 #FFFFFF

Shades

Mixing #74FB21 with black in 20% steps produces this scale. The first mixture, #5DC91A, keeps 80% of the original. By #173207, the mixture is 80% black.

#74FB21 #5DC91A #469714 #2E640D #173207 #000000

Tones

Mixing #74FB21 with middle gray in 20% steps produces this scale. The first mixture, #76E234, keeps 80% of the original. By #7E996D, the mixture is 80% middle gray.

#74FB21 #76E234 #79CA47 #7BB15A #7E996D #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

#74FB21

RGB

rgb(116 251 33)

HSL

hsl(97.156 96.460% 55.686%)

CSS example

.color-sample {
  background-color: #74FB21;
  color: #000000;
}

Channel breakdown

RGB

#74FB21 uses 116 red, 251 green and 33 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 45.5%

Green 98.4%

Blue 12.9%

CMYK

A simple CMYK estimate for #74FB21 is 53.8% cyan, 0.0% magenta, 86.9% yellow and 1.6% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 53.8%

Magenta 0.0%

Yellow 86.9%

Black 1.6%

Nearby colors

The nearest shorthand match is #77FF22. Its matching digit pairs let you write it as #7F2 in CSS. For a modern design, keep #74FB21 when you want an exact match. Use its web-safe neighbor, #66FF33, when matching a legacy palette of 216 colors.

Nearest shorthand: #77FF22 Nearest web-safe: #66FF33

Gradient to complement

#74FB21 #7DD745 #85B26A #8E8E8E #976AB2 #9F45D7 #A821FB

Color vision previews

Compare how #74FB21 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.

#FFE500

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.

#F2DA42

Tritanopia

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

#69F2D6

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.

#DEEB00

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.

#D7E538

Tritanomaly (50%)

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

#7CF68A

Grayscale (luminance)

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

#DEDEDE

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.

#B3EDA4

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 0.17465 G 0.96469 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 0.59687 G 0.97245 B 0.32580

Linear Display P3

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

R 0.31491 G 0.93846 B 0.08667

CIE xyY

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

x 0.328 y 0.569 Y 72.815

CMY

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

C % 54.510 M % 1.569 Y % 87.059

Binary RGB

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

01110100 11111011 00100001