#51D57E#51D57E

#51D57E is a light, vivid green. Relative luminance 0.508; OKLCH L 77.9% C 0.169 H 151.5°. Best body text is #000000 at 11.17:1 contrast (WCAG AA passes).

Color values

HEX	#51D57E
RGB	rgb(81, 213, 126)
HSL	hsl(140, 61%, 58%)
HSV	hsv(140, 62%, 84%)
CMYK	cmyk(62%, 0%, 40.8%, 16.5%)
CIE-LAB	lab(76.58, -55.07, 32.57)
CIE-LCH	lch(76.58, 63.98, 149.40°)
OKLab	oklab(77.93% -0.1488 0.0807)
OKLCH	oklch(77.93% 0.169 151.5)
XYZ	xyz(30.9511, 50.8411, 27.9168)
Luminance	0.5084 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D57E #D551A8

analogous

#66D551 #51D57E #51D5C0

triadic

#51D57E #7E51D5 #D57E51

tetradic

#51D57E #5166D5 #D551A8 #D5C051

square

#51D57E #5166D5 #D551A8 #D5C051

split-complementary

#51D57E #C051D5 #D55166

monochromatic

#218A45 #2DBC5E #51D57E #82E1A3 #B4EDC7

Accessibility & contrast

On white

1.88

#51D57E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.17

#51D57E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D57E

11.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D57E	#FFFFFF	#000000	##000000
##51D57E	1.00	1.88	11.17	11.17
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.17	21.00	1.00	1.00
##000000	11.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D6C478

Deuteranopia (green-blind)

#C5B884

Tritanopia (blue-blind)

#21D2BF

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51d57e;
/* rgb */ color: rgb(81, 213, 126);
/* oklch */ color: oklch(77.9% 0.169 151.5);

Tailwind

colors: {
  custom: {
    50: '#8fe3a4',
    500: '#51d57e',
    950: '#000000',
  },
}

SCSS

$custom: #51d57e;
$custom-light: #8fe3a4;
$custom-dark: #000000;

JSON

{
  "hex": "#51d57e",
  "rgb": {
    "r": 81,
    "g": 213,
    "b": 126
  },
  "hsl": {
    "h": 140.455,
    "s": 61.111,
    "l": 57.647
  },
  "oklch": {
    "l": 0.7793,
    "c": 0.16932,
    "h": 151.5
  },
  "luminance": 0.50844
}

Semantic roles & 50–950 ramp

primary

#51D57E

secondary

#903A73

accent

#44ADE4

background

#FCFEFC

surface

#F5FCF6

border

#CFD5D0

text

#0D150F

muted

#7F8480

Preview Lab

Preview with #51D57E

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

Preview Lab → · Contrast checker → · Palette generator →