#51D661#51D661

#51D661 is a light, vivid green. Relative luminance 0.507; OKLCH L 77.7% C 0.196 H 145.5°. Best body text is #000000 at 11.14:1 contrast (WCAG AA passes).

Color values

HEX	#51D661
RGB	rgb(81, 214, 97)
HSL	hsl(127, 62%, 58%)
HSV	hsv(127, 62%, 84%)
CMYK	cmyk(62.1%, 0%, 54.7%, 16.1%)
CIE-LAB	lab(76.50, -59.80, 46.68)
CIE-LCH	lch(76.50, 75.87, 142.03°)
OKLab	oklab(77.73% -0.1618 0.1114)
OKLCH	oklch(77.73% 0.196 145.5)
XYZ	xyz(29.5957, 50.7026, 19.5339)
Luminance	0.5071 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D661 #D651C6

analogous

#83D651 #51D661 #51D6A3

triadic

#51D661 #6151D6 #D66151

tetradic

#51D661 #5183D6 #D651C6 #D6A351

square

#51D661 #5183D6 #D651C6 #D6A351

split-complementary

#51D661 #A351D6 #D65183

monochromatic

#218C2E #2DBD3E #51D661 #83E28E #B4EDBB

Accessibility & contrast

On white

1.88

#51D661 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.14

#51D661 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D661

11.14:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D661	#FFFFFF	#000000	##000000
##51D661	1.00	1.88	11.14	11.14
#FFFFFF	1.88	1.00	21.00	21.00
#000000	11.14	21.00	1.00	1.00
##000000	11.14	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C456

Deuteranopia (green-blind)

#C9B86A

Tritanopia (blue-blind)

#31D1BC

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #51d661;
/* rgb */ color: rgb(81, 214, 97);
/* oklch */ color: oklch(77.7% 0.196 145.5);

Tailwind

colors: {
  custom: {
    50: '#90e491',
    500: '#51d661',
    950: '#000000',
  },
}

SCSS

$custom: #51d661;
$custom-light: #90e491;
$custom-dark: #000000;

JSON

{
  "hex": "#51d661",
  "rgb": {
    "r": 81,
    "g": 214,
    "b": 97
  },
  "hsl": {
    "h": 127.218,
    "s": 61.86,
    "l": 57.843
  },
  "oklch": {
    "l": 0.77734,
    "c": 0.19646,
    "h": 145.5
  },
  "luminance": 0.50706
}

Semantic roles & 50–950 ramp

primary

#51D661

secondary

#923A87

accent

#43D1E5

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0E160D

muted

#7F847F

Preview Lab

Preview with #51D661

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

Preview Lab → · Contrast checker → · Palette generator →