#51BF57#51BF57

#51BF57 is a light, vivid green. Relative luminance 0.397; OKLCH L 71.7% C 0.175 H 144.4°. Best body text is #000000 at 8.94:1 contrast (WCAG AA passes).

Color values

HEX	#51BF57
RGB	rgb(81, 191, 87)
HSL	hsl(123, 46%, 53%)
HSV	hsv(123, 58%, 75%)
CMYK	cmyk(57.6%, 0%, 54.5%, 25.1%)
CIE-LAB	lab(69.25, -52.57, 42.73)
CIE-LCH	lch(69.25, 67.74, 140.90°)
OKLab	oklab(71.72% -0.1426 0.102)
OKLCH	oklch(71.72% 0.175 144.4)
XYZ	xyz(23.7431, 39.6969, 15.4260)
Luminance	0.3970 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF57 #BF51B9

analogous

#82BF51 #51BF57 #51BF8E

triadic

#51BF57 #5751BF #BF5751

tetradic

#51BF57 #5182BF #BF51B9 #BF8E51

square

#51BF57 #5182BF #BF51B9 #BF8E51

split-complementary

#51BF57 #8E51BF #BF5182

monochromatic

#286D2C #399A3E #51BF57 #7ECF82 #AAE0AD

Accessibility & contrast

On white

2.35

#51BF57 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.94

#51BF57 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF57

8.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF57	#FFFFFF	#000000	##000000
##51BF57	1.00	2.35	8.94	8.94
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.94	21.00	1.00	1.00
##000000	8.94	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AF4D

Deuteranopia (green-blind)

#B4A55F

Tritanopia (blue-blind)

#3DBAA8

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51bf57;
/* rgb */ color: rgb(81, 191, 87);
/* oklch */ color: oklch(71.7% 0.175 144.4);

Tailwind

colors: {
  custom: {
    50: '#8cd389',
    500: '#51bf57',
    950: '#000000',
  },
}

SCSS

$custom: #51bf57;
$custom-light: #8cd389;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf57",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 87
  },
  "hsl": {
    "h": 123.273,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.71724,
    "c": 0.17536,
    "h": 144.4
  },
  "luminance": 0.39699
}

Semantic roles & 50–950 ramp

primary

#51BF57

secondary

#CE9ECB

accent

#52CFD6

background

#F9FDF8

surface

#F1FAF0

border

#CBD3CB

text

#0D140C

muted

#7E837D

Preview Lab

Preview with #51BF57

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

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