#51BF59#51BF59

#51BF59 is a light, vivid green. Relative luminance 0.397; OKLCH L 71.8% C 0.174 H 144.8°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#51BF59
RGB	rgb(81, 191, 89)
HSL	hsl(124, 46%, 53%)
HSV	hsv(124, 58%, 75%)
CMYK	cmyk(57.6%, 0%, 53.4%, 25.1%)
CIE-LAB	lab(69.28, -52.31, 41.79)
CIE-LCH	lch(69.28, 66.95, 141.38°)
OKLab	oklab(71.75% -0.1418 0.1001)
OKLCH	oklch(71.75% 0.174 144.8)
XYZ	xyz(23.8259, 39.7301, 15.8624)
Luminance	0.3973 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BF59 #BF51B7

analogous

#80BF51 #51BF59 #51BF90

triadic

#51BF59 #5951BF #BF5951

tetradic

#51BF59 #5180BF #BF51B7 #BF9051

square

#51BF59 #5180BF #BF51B7 #BF9051

split-complementary

#51BF59 #9051BF #BF5180

monochromatic

#286D2D #399A40 #51BF59 #7ECF84 #AAE0AE

Accessibility & contrast

On white

2.35

#51BF59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#51BF59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BF59

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BF59	#FFFFFF	#000000	##000000
##51BF59	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C2AF50

Deuteranopia (green-blind)

#B4A560

Tritanopia (blue-blind)

#3CBAA8

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51bf59;
/* rgb */ color: rgb(81, 191, 89);
/* oklch */ color: oklch(71.8% 0.174 144.8);

Tailwind

colors: {
  custom: {
    50: '#8cd38a',
    500: '#51bf59',
    950: '#000000',
  },
}

SCSS

$custom: #51bf59;
$custom-light: #8cd38a;
$custom-dark: #000000;

JSON

{
  "hex": "#51bf59",
  "rgb": {
    "r": 81,
    "g": 191,
    "b": 89
  },
  "hsl": {
    "h": 124.364,
    "s": 46.218,
    "l": 53.333
  },
  "oklch": {
    "l": 0.71752,
    "c": 0.17361,
    "h": 144.8
  },
  "luminance": 0.39732
}

Semantic roles & 50–950 ramp

primary

#51BF59

secondary

#CE9ECA

accent

#52CCD6

background

#F9FDF8

surface

#F1FAF0

border

#CBD3CB

text

#0D140C

muted

#7E837D

Preview Lab

Preview with #51BF59

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

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