#57BB51#57BB51

#57BB51 is a light, vivid green. Relative luminance 0.382; OKLCH L 70.8% C 0.173 H 142.5°. Best body text is #000000 at 8.63:1 contrast (WCAG AA passes).

Color values

HEX	#57BB51
RGB	rgb(87, 187, 81)
HSL	hsl(117, 44%, 53%)
HSV	hsv(117, 57%, 73%)
CMYK	cmyk(53.5%, 0%, 56.7%, 26.7%)
CIE-LAB	lab(68.14, -50.25, 44.30)
CIE-LCH	lch(68.14, 66.99, 138.60°)
OKLab	oklab(70.84% -0.1369 0.105)
OKLCH	oklch(70.84% 0.173 142.5)
XYZ	xyz(23.1848, 38.1591, 13.9267)
Luminance	0.3816 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#57BB51 #B551BB

analogous

#8CBB51 #57BB51 #51BB80

triadic

#57BB51 #5157BB #BB5157

tetradic

#57BB51 #518CBB #B551BB #BB8051

square

#57BB51 #518CBB #B551BB #BB8051

split-complementary

#57BB51 #8051BB #BB518C

monochromatic

#2D6929 #3F953A #57BB51 #81CC7D #ACDDA9

Accessibility & contrast

On white

2.43

#57BB51 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.63

#57BB51 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #57BB51

8.63:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##57BB51	#FFFFFF	#000000	##000000
##57BB51	1.00	2.43	8.63	8.63
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.63	21.00	1.00	1.00
##000000	8.63	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFAB47

Deuteranopia (green-blind)

#B2A359

Tritanopia (blue-blind)

#49B6A4

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #57bb51;
/* rgb */ color: rgb(87, 187, 81);
/* oklch */ color: oklch(70.8% 0.173 142.5);

Tailwind

colors: {
  custom: {
    50: '#8fd085',
    500: '#57bb51',
    950: '#000000',
  },
}

SCSS

$custom: #57bb51;
$custom-light: #8fd085;
$custom-dark: #000000;

JSON

{
  "hex": "#57bb51",
  "rgb": {
    "r": 87,
    "g": 187,
    "b": 81
  },
  "hsl": {
    "h": 116.604,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70841,
    "c": 0.17251,
    "h": 142.5
  },
  "luminance": 0.38161
}

Semantic roles & 50–950 ramp

primary

#57BB51

secondary

#C89DCB

accent

#54D4CC

background

#F9FCF8

surface

#F1F9EF

border

#CBD2CA

text

#0D140B

muted

#7E827C

Preview Lab

Preview with #57BB51

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

Preview Lab → · Contrast checker → · Palette generator →