#51BE31#51BE31

#51BE31 is a light, highly saturated green. Relative luminance 0.388; OKLCH L 71.1% C 0.202 H 139.7°. Best body text is #000000 at 8.76:1 contrast (WCAG AA passes).

Color values

HEX	#51BE31
RGB	rgb(81, 190, 49)
HSL	hsl(106, 59%, 47%)
HSV	hsv(106, 74%, 75%)
CMYK	cmyk(57.4%, 0%, 74.2%, 25.5%)
CIE-LAB	lab(68.60, -56.01, 58.06)
CIE-LCH	lch(68.60, 80.67, 133.97°)
OKLab	oklab(71.08% -0.1539 0.1307)
OKLCH	oklch(71.08% 0.202 139.7)
XYZ	xyz(22.3602, 38.7961, 9.2152)
Luminance	0.3880 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BE31 #9E31BE

analogous

#98BE31 #51BE31 #31BE58

triadic

#51BE31 #3151BE #BE3151

tetradic

#51BE31 #3198BE #9E31BE #BE5831

square

#51BE31 #3198BE #9E31BE #BE5831

split-complementary

#51BE31 #5831BE #BE3198

monochromatic

#285D18 #3C8D24 #51BE31 #74D458 #9DE189

Accessibility & contrast

On white

2.40

#51BE31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.76

#51BE31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BE31

8.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BE31	#FFFFFF	#000000	##000000
##51BE31	1.00	2.40	8.76	8.76
#FFFFFF	2.40	1.00	21.00	21.00
#000000	8.76	21.00	1.00	1.00
##000000	8.76	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD14

Deuteranopia (green-blind)

#B6A440

Tritanopia (blue-blind)

#44B8A3

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #51be31;
/* rgb */ color: rgb(81, 190, 49);
/* oklch */ color: oklch(71.1% 0.202 139.7);

Tailwind

colors: {
  custom: {
    50: '#8ed273',
    500: '#51be31',
    950: '#000000',
  },
}

SCSS

$custom: #51be31;
$custom-light: #8ed273;
$custom-dark: #000000;

JSON

{
  "hex": "#51be31",
  "rgb": {
    "r": 81,
    "g": 190,
    "b": 49
  },
  "hsl": {
    "h": 106.383,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.7108,
    "c": 0.20193,
    "h": 139.7
  },
  "luminance": 0.38798
}

Semantic roles & 50–950 ramp

primary

#51BE31

secondary

#BA80CA

accent

#46E2BF

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51BE31

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

Preview Lab → · Contrast checker → · Palette generator →