#51D159#51D159

#51D159 is a light, vivid green. Relative luminance 0.481; OKLCH L 76.4% C 0.197 H 144.4°. Best body text is #000000 at 10.61:1 contrast (WCAG AA passes).

Color values

HEX	#51D159
RGB	rgb(81, 209, 89)
HSL	hsl(124, 58%, 57%)
HSV	hsv(124, 61%, 82%)
CMYK	cmyk(61.2%, 0%, 57.4%, 18%)
CIE-LAB	lab(74.87, -59.00, 48.45)
CIE-LCH	lch(74.87, 76.34, 140.61°)
OKLab	oklab(76.36% -0.1599 0.1147)
OKLCH	oklch(76.36% 0.197 144.4)
XYZ	xyz(27.9953, 48.0688, 17.2521)
Luminance	0.4807 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D159 #D151C9

analogous

#89D151 #51D159 #51D199

triadic

#51D159 #5951D1 #D15951

tetradic

#51D159 #5189D1 #D151C9 #D19951

square

#51D159 #5189D1 #D151C9 #D19951

split-complementary

#51D159 #9951D1 #D15189

monochromatic

#238529 #30B538 #51D159 #81DE87 #B2EBB5

Accessibility & contrast

On white

1.98

#51D159 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.61

#51D159 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D159

10.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D159	#FFFFFF	#000000	##000000
##51D159	1.00	1.98	10.61	10.61
#FFFFFF	1.98	1.00	21.00	21.00
#000000	10.61	21.00	1.00	1.00
##000000	10.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D5BF4D

Deuteranopia (green-blind)

#C5B462

Tritanopia (blue-blind)

#36CCB7

Achromatopsia (no color)

#B8B8B8

Design tokens & code

CSS

--color: #51d159;
/* rgb */ color: rgb(81, 209, 89);
/* oklch */ color: oklch(76.4% 0.197 144.4);

Tailwind

colors: {
  custom: {
    50: '#8fe08b',
    500: '#51d159',
    950: '#000000',
  },
}

SCSS

$custom: #51d159;
$custom-light: #8fe08b;
$custom-dark: #000000;

JSON

{
  "hex": "#51d159",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 89
  },
  "hsl": {
    "h": 123.75,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.7636,
    "c": 0.19678,
    "h": 144.4
  },
  "luminance": 0.48072
}

Semantic roles & 50–950 ramp

primary

#51D159

secondary

#D9A5D6

accent

#46D8E1

background

#F9FDF8

surface

#F2FBF0

border

#CCD4CB

text

#0E150C

muted

#7E837D

Preview Lab

Preview with #51D159

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

Preview Lab → · Contrast checker → · Palette generator →