#51EE5F#51EE5F

#51EE5F is a very light, highly saturated green. Relative luminance 0.637; OKLCH L 83.8% C 0.227 H 144.6°. Best body text is #000000 at 13.75:1 contrast (WCAG AA passes).

Color values

HEX	#51EE5F
RGB	rgb(81, 238, 95)
HSL	hsl(125, 82%, 63%)
HSV	hsv(125, 66%, 93%)
CMYK	cmyk(66%, 0%, 60.1%, 6.7%)
CIE-LAB	lab(83.82, -68.39, 56.14)
CIE-LCH	lch(83.82, 88.48, 140.62°)
OKLab	oklab(83.78% -0.1851 0.1318)
OKLCH	oklch(83.78% 0.227 144.6)
XYZ	xyz(36.0311, 63.7209, 21.2248)
Luminance	0.6372 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51EE5F #EE51E0

analogous

#92EE51 #51EE5F #51EEAD

triadic

#51EE5F #5F51EE #EE5F51

tetradic

#51EE5F #5192EE #EE51E0 #EEAD51

square

#51EE5F #5192EE #EE51E0 #EEAD51

split-complementary

#51EE5F #AD51EE #EE5192

monochromatic

#11B320 #19E92C #51EE5F #89F392 #C1F9C6

Accessibility & contrast

On white

1.53

#51EE5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

13.75

#51EE5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51EE5F

13.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51EE5F	#FFFFFF	#000000	##000000
##51EE5F	1.00	1.53	13.75	13.75
#FFFFFF	1.53	1.00	21.00	21.00
#000000	13.75	21.00	1.00	1.00
##000000	13.75	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2D94F

Deuteranopia (green-blind)

#DFCC6B

Tritanopia (blue-blind)

#24E8CF

Achromatopsia (no color)

#D1D1D1

Design tokens & code

CSS

--color: #51ee5f;
/* rgb */ color: rgb(81, 238, 95);
/* oklch */ color: oklch(83.8% 0.227 144.6);

Tailwind

colors: {
  custom: {
    50: '#94f591',
    500: '#51ee5f',
    950: '#000000',
  },
}

SCSS

$custom: #51ee5f;
$custom-light: #94f591;
$custom-dark: #000000;

JSON

{
  "hex": "#51ee5f",
  "rgb": {
    "r": 81,
    "g": 238,
    "b": 95
  },
  "hsl": {
    "h": 125.35,
    "s": 82.199,
    "l": 62.549
  },
  "oklch": {
    "l": 0.83776,
    "c": 0.22721,
    "h": 144.6
  },
  "luminance": 0.63725
}

Semantic roles & 50–950 ramp

primary

#51EE5F

secondary

#B330A7

accent

#07CBDF

background

#FCFFFC

surface

#F5FFF4

border

#CFD7CE

text

#0F170D

muted

#80857F

Preview Lab

Preview with #51EE5F

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

Preview Lab → · Contrast checker → · Palette generator →