#4DDC19

sRGB · 77 / 220 / 25

#4DDC19 belongs to the yellow-green family. Its hex code tells a screen to mix 77 red, 220 green and 25 blue on a scale of 0 to 255. On the HSL wheel, hue is a position around a circle: 104.0° lands in the yellow-green region. Its 79.6% saturation makes it strong in color at this lightness. HSL lightness is 48.0% 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 (11.57:1), which helps the shapes of letters stand out.

Color conversions

sRGB (8-bit): 77, 220, 25
HSL: 104.00°, 79.59%, 48.04%
HSV / HSB: 104.00°, 88.64%, 86.27%
CMYK (approx.): 65.00%, 0.00%, 88.64%, 13.73%
CIE XYZ (D65, Y = 100 for white): 28.828, 52.832, 9.598
CIELAB (D65, 2° observer): 77.776, -68.265, 72.679
WCAG relative luminance: 0.52834
24-bit decimal: 5102617

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 #4DDC19 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 · 11.57:1

Normal text: AAA
Large text: AAA

White text · 1.82:1

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. 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

#A819DC sits half a turn (180°) from #4DDC19 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.

#4DDC19 #A819DC

Analogous

#AFDC19 and #19DC47 sit 30° to either side of #4DDC19. 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.

#AFDC19 #4DDC19 #19DC47

Triadic

#4DDC19, #194DDC and #DC194D are spaced 120° apart, forming a triangle on the wheel. Try one for the main color and the other two for accents.

#4DDC19 #194DDC #DC194D

Split complementary

Start at #4DDC19 and look across the wheel. #4719DC and #DC19AF sit 30° to either side of its exact opposite, giving you two different accent choices.

#4DDC19 #4719DC #DC19AF

Square

Starting with #4DDC19, each quarter turn (90°) takes you to the next hue: #19AFDC, #A819DC, then #DC4719. Across the square, #4DDC19 pairs with #A819DC, and #19AFDC with #DC4719.

#4DDC19 #19AFDC #A819DC #DC4719

Tetradic

#4DDC19 and #A819DC are opposites, as are #19DCA8 and #DC194D. Together they form a rectangle on the wheel, with alternating gaps of 60° and 120°.

#4DDC19 #19DCA8 #A819DC #DC194D

Tints

Mixing #4DDC19 with white in 20% steps produces this scale. The first mixture, #71E347, keeps 80% of the original. By #DBF8D1, the mixture is 80% white.

#4DDC19 #71E347 #94EA75 #B8F1A3 #DBF8D1 #FFFFFF

Shades

Mixing #4DDC19 with black in 20% steps produces this scale. The first mixture, #3EB014, keeps 80% of the original. By #0F2C05, the mixture is 80% black.

#4DDC19 #3EB014 #2E840F #1F580A #0F2C05 #000000

Tones

Mixing #4DDC19 with middle gray in 20% steps produces this scale. The first mixture, #57CA2E, keeps 80% of the original. By #76926B, the mixture is 80% middle gray.

#4DDC19 #57CA2E #61B742 #6CA557 #76926B #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

#4DDC19

RGB

rgb(77 220 25)

HSL

hsl(104.000 79.592% 48.039%)

CSS example

.color-sample {
  background-color: #4DDC19;
  color: #000000;
}

Channel breakdown

RGB

#4DDC19 uses 77 red, 220 green and 25 blue. Each bar shows how much of that channel’s 0–255 range the screen uses.

Red 30.2%

Green 86.3%

Blue 9.8%

CMYK

A simple CMYK estimate for #4DDC19 is 65.0% cyan, 0.0% magenta, 88.6% yellow and 13.7% black. These are ink amounts; a printer profile is needed to predict the result on paper.

Cyan 65.0%

Magenta 0.0%

Yellow 88.6%

Black 13.7%

Nearby colors

The nearest shorthand match is #55DD11. Its matching digit pairs let you write it as #5D1 in CSS. For a modern design, keep #4DDC19 when you want an exact match. Use its web-safe neighbor, #66CC00, when matching a legacy palette of 216 colors.

Nearest shorthand · #55DD11 Nearest web-safe · #66CC00

Gradient to complement

#4DDC19 #5CBC3A #6B9B5A #7B7B7B #8A5A9B #993ABC #A819DC

Color vision previews

Compare how #4DDC19 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.

#E2C700

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.

#D1BC38

Tritanopia

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

#36D4BB

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.

#BFCD00

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.

#B7C72F

Tritanomaly (50%)

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

#57D877

Grayscale (luminance)

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

#C0C0C0

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.

#95CF8E

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 0.71569 B 0.00972

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 0.47091 G 0.85127 B 0.27605

Linear Display P3

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

R 0.18810 G 0.69440 B 0.06193

CIE xyY

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

x 0.316 y 0.579 Y 52.832

CMY

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

C % 69.804 M % 13.725 Y % 90.196

Binary RGB

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

01001101 11011100 00011001