#51D378#51D378

#51D378 is a light, vivid green. Relative luminance 0.497; OKLCH L 77.3% C 0.172 H 150.2°. Best body text is #000000 at 10.94:1 contrast (WCAG AA passes).

Color values

HEX	#51D378
RGB	rgb(81, 211, 120)
HSL	hsl(138, 60%, 57%)
HSV	hsv(138, 62%, 83%)
CMYK	cmyk(61.6%, 0%, 43.1%, 17.3%)
CIE-LAB	lab(75.88, -55.31, 34.70)
CIE-LCH	lch(75.88, 65.29, 147.90°)
OKLab	oklab(77.32% -0.1494 0.0855)
OKLCH	oklch(77.32% 0.172 150.2)
XYZ	xyz(30.0755, 49.6909, 25.7720)
Luminance	0.4969 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D378 #D351AC

analogous

#6BD351 #51D378 #51D3B9

triadic

#51D378 #7851D3 #D37851

tetradic

#51D378 #516BD3 #D351AC #D3B951

square

#51D378 #516BD3 #D351AC #D3B951

split-complementary

#51D378 #B951D3 #D3516B

monochromatic

#228741 #2FB858 #51D378 #82DF9E #B3ECC4

Accessibility & contrast

On white

1.92

#51D378 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.94

#51D378 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D378

10.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D378	#FFFFFF	#000000	##000000
##51D378	1.00	1.92	10.94	10.94
#FFFFFF	1.92	1.00	21.00	21.00
#000000	10.94	21.00	1.00	1.00
##000000	10.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D4C271

Deuteranopia (green-blind)

#C3B67E

Tritanopia (blue-blind)

#26D0BD

Achromatopsia (no color)

#BBBBBB

Design tokens & code

CSS

--color: #51d378;
/* rgb */ color: rgb(81, 211, 120);
/* oklch */ color: oklch(77.3% 0.172 150.2);

Tailwind

colors: {
  custom: {
    50: '#8ee1a0',
    500: '#51d378',
    950: '#000000',
  },
}

SCSS

$custom: #51d378;
$custom-light: #8ee1a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51d378",
  "rgb": {
    "r": 81,
    "g": 211,
    "b": 120
  },
  "hsl": {
    "h": 138,
    "s": 59.633,
    "l": 57.255
  },
  "oklch": {
    "l": 0.77322,
    "c": 0.17215,
    "h": 150.2
  },
  "luminance": 0.49694
}

Semantic roles & 50–950 ramp

primary

#51D378

secondary

#DAA6CA

accent

#45B3E3

background

#F9FDF9

surface

#F2FBF2

border

#CCD4CC

text

#0D150F

muted

#7E837E

Preview Lab

Preview with #51D378

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →