#51E08B#51E08B

#51E08B is a light, vivid green. Relative luminance 0.569; OKLCH L 80.9% C 0.172 H 153.6°. Best body text is #000000 at 12.39:1 contrast (WCAG AA passes).

Color values

HEX	#51E08B
RGB	rgb(81, 224, 139)
HSL	hsl(144, 70%, 60%)
HSV	hsv(144, 64%, 88%)
CMYK	cmyk(63.8%, 0%, 37.9%, 12.2%)
CIE-LAB	lab(80.14, -57.00, 30.63)
CIE-LCH	lch(80.14, 64.71, 151.75°)
OKLab	oklab(80.92% -0.1542 0.0765)
OKLCH	oklch(80.92% 0.172 153.6)
XYZ	xyz(34.7063, 56.9211, 33.5789)
Luminance	0.5693 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51E08B #E051A6

analogous

#5EE051 #51E08B #51E0D3

triadic

#51E08B #8B51E0 #E08B51

tetradic

#51E08B #515EE0 #E051A6 #E0D351

square

#51E08B #515EE0 #E051A6 #E0D351

split-complementary

#51E08B #D351E0 #E0515E

monochromatic

#1C9B4F #25CF6A #51E08B #85E9AE #B9F3D0

Accessibility & contrast

On white

1.70

#51E08B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.39

#51E08B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51E08B

12.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51E08B	#FFFFFF	#000000	##000000
##51E08B	1.00	1.70	12.39	12.39
#FFFFFF	1.70	1.00	21.00	21.00
#000000	12.39	21.00	1.00	1.00
##000000	12.39	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0CF85

Deuteranopia (green-blind)

#CDC291

Tritanopia (blue-blind)

#00DDCB

Achromatopsia (no color)

#C7C7C7

Design tokens & code

CSS

--color: #51e08b;
/* rgb */ color: rgb(81, 224, 139);
/* oklch */ color: oklch(80.9% 0.172 153.6);

Tailwind

colors: {
  custom: {
    50: '#90ebad',
    500: '#51e08b',
    950: '#000000',
  },
}

SCSS

$custom: #51e08b;
$custom-light: #90ebad;
$custom-dark: #000000;

JSON

{
  "hex": "#51e08b",
  "rgb": {
    "r": 81,
    "g": 224,
    "b": 139
  },
  "hsl": {
    "h": 144.336,
    "s": 69.756,
    "l": 59.804
  },
  "oklch": {
    "l": 0.8092,
    "c": 0.17208,
    "h": 153.6
  },
  "luminance": 0.56925
}

Semantic roles & 50–950 ramp

primary

#51E08B

secondary

#9F3774

accent

#3BA5ED

background

#FCFFFD

surface

#F5FEF7

border

#CFD6D0

text

#0E1610

muted

#7F8581

Preview Lab

Preview with #51E08B

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

Preview Lab → · Contrast checker → · Palette generator →