#4DFD39

sRGB: 77 / 253 / 57

#4DFD39 belongs to the green family. Its hex code tells a screen to mix 77 red, 253 green and 57 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 113.9° lands in the green region. Its 98.0% saturation makes it strong in color at this lightness. HSL lightness is 60.8% 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 (15.42:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 77, 253, 57
HSL: 113.88°, 98.00%, 60.78%
HSV / HSB: 113.88°, 77.47%, 99.22%
CMYK (approx.): 69.57%, 0.00%, 77.47%, 0.78%
CIE XYZ (D65, Y = 100 for white): 38.923, 72.121, 15.740
CIELAB (D65, 2° observer): 88.027, -77.090, 74.398
WCAG relative luminance: 0.72124
24-bit decimal: 5111097

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 #4DFD39 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: 15.42:1

Normal text: AAA
Large text: AAA

White text: 1.36:1

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

#E939FD sits half a turn (180°) from #4DFD39 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.

#4DFD39 #E939FD

Analogous

#AFFD39 and #39FD87 sit 30° to either side of #4DFD39. 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.

#AFFD39 #4DFD39 #39FD87

Triadic

#4DFD39, #394DFD and #FD394D are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#4DFD39 #394DFD #FD394D

Split complementary

Start at #4DFD39 and look across the wheel. #8739FD and #FD39AF sit 30° to either side of its exact opposite, giving you two different accent choices.

#4DFD39 #8739FD #FD39AF

Square

Starting with #4DFD39, each quarter turn (90°) takes you to the next hue: #39AFFD, #E939FD, then #FD8739. Across the square, #4DFD39 pairs with #E939FD, and #39AFFD with #FD8739.

#4DFD39 #39AFFD #E939FD #FD8739

Tetradic

#4DFD39 and #E939FD are opposites, as are #39FDE9 and #FD394D. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#4DFD39 #39FDE9 #E939FD #FD394D

Tints

Mixing #4DFD39 with white in 20% steps produces this scale. The first mixture, #71FD61, keeps 80% of the original. By #DBFFD7, the mixture is 80% white.

#4DFD39 #71FD61 #94FE88 #B8FEB0 #DBFFD7 #FFFFFF

Shades

Mixing #4DFD39 with black in 20% steps produces this scale. The first mixture, #3ECA2E, keeps 80% of the original. By #0F330B, the mixture is 80% black.

#4DFD39 #3ECA2E #2E9822 #1F6517 #0F330B #000000

Tones

Mixing #4DFD39 with middle gray in 20% steps produces this scale. The first mixture, #57E447, keeps 80% of the original. By #769972, the mixture is 80% middle gray.

#4DFD39 #57E447 #61CB55 #6CB264 #769972 #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

#4DFD39

RGB

rgb(77 253 57)

HSL

hsl(113.878 98.000% 60.784%)

CSS example

.color-sample {
  background-color: #4DFD39;
  color: #000000;
}

Channel breakdown

RGB

#4DFD39 uses 77 red, 253 green and 57 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 30.2%

Green 99.2%

Blue 22.4%

CMYK

A simple CMYK estimate for #4DFD39 is 69.6% cyan, 0.0% magenta, 77.5% yellow and 0.8% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 69.6%

Magenta 0.0%

Yellow 77.5%

Black 0.8%

Nearby colors

The nearest shorthand match is #55FF33. Its matching digit pairs let you write it as #5F3 in CSS. For a modern design, keep #4DFD39 when you want an exact match. Use its web-safe neighbor, #66FF33, when matching a legacy palette of 216 colors.

Nearest shorthand: #55FF33 Nearest web-safe: #66FF33

Gradient to complement

#4DFD39 #67DC5A #81BC7A #9B9B9B #B57ABC #CF5ADC #E939FD

Color vision previews

Compare how #4DFD39 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.

#EFD850

Tritanopia

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

#1AF5D9

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.

#D9EC2C

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.

#D0E549

Tritanomaly (50%)

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

#59F88F

Grayscale (luminance)

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

#DDDDDD

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.

#A9EEA6

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 0.07421 G 0.98225 B 0.04092

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 0.52246 G 0.97865 B 0.36498

Linear Display P3

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

R 0.23542 G 0.95211 B 0.10963

CIE xyY

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

x 0.307 y 0.569 Y 72.121

CMY

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

C % 69.804 M % 0.784 Y % 77.647

Binary RGB

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

01001101 11111101 00111001