#51B751#51B751

#51B751 is a light, vivid green. Relative luminance 0.362; OKLCH L 69.6% C 0.170 H 143.5°. Best body text is #000000 at 8.24:1 contrast (WCAG AA passes).

Color values

HEX	#51B751
RGB	rgb(81, 183, 81)
HSL	hsl(120, 41%, 52%)
HSV	hsv(120, 56%, 72%)
CMYK	cmyk(55.7%, 0%, 55.7%, 28.2%)
CIE-LAB	lab(66.68, -50.26, 42.52)
CIE-LCH	lch(66.68, 65.83, 139.77°)
OKLab	oklab(69.58% -0.1366 0.1012)
OKLCH	oklch(69.58% 0.17 143.5)
XYZ	xyz(21.8108, 36.2085, 13.6226)
Luminance	0.3621 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B751 #B751B7

analogous

#84B751 #51B751 #51B784

triadic

#51B751 #5151B7 #B75151

tetradic

#51B751 #5184B7 #B751B7 #B78451

square

#51B751 #5184B7 #B751B7 #B78451

split-complementary

#51B751 #8451B7 #B75184

monochromatic

#296429 #3B8F3B #51B751 #7CC97C #A8DBA8

Accessibility & contrast

On white

2.55

#51B751 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.24

#51B751 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B751

8.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B751	#FFFFFF	#000000	##000000
##51B751	1.00	2.55	8.24	8.24
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.24	21.00	1.00	1.00
##000000	8.24	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BBA847

Deuteranopia (green-blind)

#AD9F59

Tritanopia (blue-blind)

#41B2A0

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51b751;
/* rgb */ color: rgb(81, 183, 81);
/* oklch */ color: oklch(69.6% 0.170 143.5);

Tailwind

colors: {
  custom: {
    50: '#8bcd85',
    500: '#51b751',
    950: '#000000',
  },
}

SCSS

$custom: #51b751;
$custom-light: #8bcd85;
$custom-dark: #000000;

JSON

{
  "hex": "#51b751",
  "rgb": {
    "r": 81,
    "g": 183,
    "b": 81
  },
  "hsl": {
    "h": 120,
    "s": 41.463,
    "l": 51.765
  },
  "oklch": {
    "l": 0.69583,
    "c": 0.16999,
    "h": 143.5
  },
  "luminance": 0.3621
}

Semantic roles & 50–950 ramp

primary

#51B751

secondary

#C89CC8

accent

#57D1D1

background

#F9FCF8

surface

#F1F9EF

border

#CBD2CA

text

#0D140B

muted

#7E827C

Preview Lab

Preview with #51B751

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

Preview Lab → · Contrast checker → · Palette generator →