#51CA31#51CA31

#51CA31 is a light, highly saturated green. Relative luminance 0.442; OKLCH L 74.2% C 0.216 H 140.1°. Best body text is #000000 at 9.84:1 contrast (WCAG AA passes).

Color values

HEX	#51CA31
RGB	rgb(81, 202, 49)
HSL	hsl(107, 61%, 49%)
HSV	hsv(107, 76%, 79%)
CMYK	cmyk(59.9%, 0%, 75.7%, 20.8%)
CIE-LAB	lab(72.37, -60.25, 61.77)
CIE-LCH	lch(72.37, 86.29, 134.29°)
OKLab	oklab(74.19% -0.1654 0.1385)
OKLCH	oklch(74.19% 0.216 140.1)
XYZ	xyz(25.0671, 44.2098, 10.1175)
Luminance	0.4421 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CA31 #AA31CA

analogous

#9ECA31 #51CA31 #31CA5E

triadic

#51CA31 #3151CA #CA3151

tetradic

#51CA31 #319ECA #AA31CA #CA5E31

square

#51CA31 #319ECA #AA31CA #CA5E31

split-complementary

#51CA31 #5E31CA #CA319E

monochromatic

#2A6719 #3D9925 #51CA31 #79D860 #A2E491

Accessibility & contrast

On white

2.13

#51CA31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.84

#51CA31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CA31

9.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CA31	#FFFFFF	#000000	##000000
##51CA31	1.00	2.13	9.84	9.84
#FFFFFF	2.13	1.00	21.00	21.00
#000000	9.84	21.00	1.00	1.00
##000000	9.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B80C

Deuteranopia (green-blind)

#C1AE42

Tritanopia (blue-blind)

#41C3AD

Achromatopsia (no color)

#B1B1B1

Design tokens & code

CSS

--color: #51ca31;
/* rgb */ color: rgb(81, 202, 49);
/* oklch */ color: oklch(74.2% 0.216 140.1);

Tailwind

colors: {
  custom: {
    50: '#90db74',
    500: '#51ca31',
    950: '#000000',
  },
}

SCSS

$custom: #51ca31;
$custom-light: #90db74;
$custom-dark: #000000;

JSON

{
  "hex": "#51ca31",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 49
  },
  "hsl": {
    "h": 107.451,
    "s": 60.956,
    "l": 49.216
  },
  "oklch": {
    "l": 0.74191,
    "c": 0.21567,
    "h": 140.1
  },
  "luminance": 0.44212
}

Semantic roles & 50–950 ramp

primary

#51CA31

secondary

#C088CF

accent

#44E4C3

background

#F9FDF7

surface

#F2FBED

border

#CCD4C8

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #51CA31

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

Preview Lab → · Contrast checker → · Palette generator →