#51BF81#51BF81

#51BF81 is a light, vivid green. Relative luminance 0.406; OKLCH L 72.5% C 0.136 H 155.9°. Best body text is #000000 at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#51BF81
RGB	rgb(81, 191, 129)
HSL	hsl(146, 46%, 53%)
HSV	hsv(146, 58%, 75%)
CMYK	cmyk(57.6%, 0%, 32.5%, 25.1%)
CIE-LAB	lab(69.89, -45.71, 22.08)
CIE-LCH	lch(69.89, 50.76, 154.22°)
OKLab	oklab(72.46% -0.1244 0.0558)
OKLCH	oklch(72.46% 0.136 155.9)
XYZ	xyz(25.9844, 40.5935, 27.2306)
Luminance	0.4060 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF81 #BF518F

analogous

#58BF51 #51BF81 #51BFB8

triadic

#51BF81 #8151BF #BF8151

tetradic

#51BF81 #5158BF #BF518F #BFB851

square

#51BF81 #5158BF #BF518F #BFB851

split-complementary

#51BF81 #B851BF #BF5158

monochromatic

#286D46 #399A63 #51BF81 #7ECFA1 #AAE0C2

Accessibility & contrast

On white

2.30

#51BF81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.12

#51BF81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF81

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF81	#FFFFFF	#000000	##000000
##51BF81	1.00	2.30	9.12	9.12
#FFFFFF	2.30	1.00	21.00	21.00
#000000	9.12	21.00	1.00	1.00
##000000	9.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BEB17D

Deuteranopia (green-blind)

#AFA685

Tritanopia (blue-blind)

#2BBDAF

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51bf81;
/* rgb */ color: rgb(81, 191, 129);
/* oklch */ color: oklch(72.5% 0.136 155.9);

Tailwind

colors: {
  custom: {
    50: '#8bd3a6',
    500: '#51bf81',
    950: '#000000',
  },
}

SCSS

$custom: #51bf81;
$custom-light: #8bd3a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf81",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 129
  },
  "hsl": {
    "h": 146.182,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.72456,
    "c": 0.13633,
    "h": 155.9
  },
  "luminance": 0.40596
}

Semantic roles & 50–950 ramp

primary

#51BF81

secondary

#CE9EB9

accent

#529CD6

background

#F9FDFA

surface

#F1FAF4

border

#CBD3CE

text

#0D140F

muted

#7E837F

Preview Lab

Preview with #51BF81

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

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