#51B263#51B263

#51B263 is a light, vivid green. Relative luminance 0.345; OKLCH L 68.6% C 0.146 H 147.7°. Best body text is #000000 at 7.90:1 contrast (WCAG AA passes).

Color values

HEX	#51B263
RGB	rgb(81, 178, 99)
HSL	hsl(131, 39%, 51%)
HSV	hsv(131, 54%, 70%)
CMYK	cmyk(54.5%, 0%, 44.4%, 30.2%)
CIE-LAB	lab(65.35, -45.69, 31.89)
CIE-LCH	lch(65.35, 55.71, 145.09°)
OKLab	oklab(68.57% -0.1238 0.0783)
OKLCH	oklch(68.57% 0.146 147.7)
XYZ	xyz(21.5645, 34.4891, 17.3226)
Luminance	0.3449 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B263 #B251A0

analogous

#6FB251 #51B263 #51B293

triadic

#51B263 #6351B2 #B26351

tetradic

#51B263 #516FB2 #B251A0 #B29351

square

#51B263 #516FB2 #B251A0 #B29351

split-complementary

#51B263 #9351B2 #B2516F

monochromatic

#2A5F34 #3D894B #51B263 #7BC589 #A6D8AF

Accessibility & contrast

On white

2.66

#51B263 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.90

#51B263 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B263

7.90:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B263	#FFFFFF	#000000	##000000
##51B263	1.00	2.66	7.90	7.90
#FFFFFF	2.66	1.00	21.00	21.00
#000000	7.90	21.00	1.00	1.00
##000000	7.90	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B4A45D

Deuteranopia (green-blind)

#A79B68

Tritanopia (blue-blind)

#3DAF9F

Achromatopsia (no color)

#9F9F9F

Design tokens & code

CSS

--color: #51b263;
/* rgb */ color: rgb(81, 178, 99);
/* oklch */ color: oklch(68.6% 0.146 147.7);

Tailwind

colors: {
  custom: {
    50: '#8aca90',
    500: '#51b263',
    950: '#000000',
  },
}

SCSS

$custom: #51b263;
$custom-light: #8aca90;
$custom-dark: #000000;

JSON

{
  "hex": "#51b263",
  "rgb": {
    "r": 81,
    "g": 178,
    "b": 99
  },
  "hsl": {
    "h": 131.134,
    "s": 38.645,
    "l": 50.784
  },
  "oklch": {
    "l": 0.68568,
    "c": 0.14648,
    "h": 147.7
  },
  "luminance": 0.34491
}

Semantic roles & 50–950 ramp

primary

#51B263

secondary

#C59ABD

accent

#59B9CF

background

#F8FCF8

surface

#F0F8F0

border

#CBD1CB

text

#0C130D

muted

#7D827D

Preview Lab

Preview with #51B263

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

Preview Lab → · Contrast checker → · Palette generator →