#51CB38#51CB38

#51CB38 is a light, highly saturated green. Relative luminance 0.447; OKLCH L 74.5% C 0.213 H 140.6°. Best body text is #000000 at 9.95:1 contrast (WCAG AA passes).

Color values

HEX	#51CB38
RGB	rgb(81, 203, 56)
HSL	hsl(110, 59%, 51%)
HSV	hsv(110, 72%, 80%)
CMYK	cmyk(60.1%, 0%, 72.4%, 20.4%)
CIE-LAB	lab(72.72, -60.11, 59.72)
CIE-LCH	lch(72.72, 84.73, 135.18°)
OKLab	oklab(74.5% -0.1646 0.1351)
OKLCH	oklch(74.5% 0.213 140.6)
XYZ	xyz(25.4619, 44.7444, 11.0353)
Luminance	0.4475 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CB38 #B238CB

analogous

#9ACB38 #51CB38 #38CB68

triadic

#51CB38 #3851CB #CB3851

tetradic

#51CB38 #389ACB #B238CB #CB6838

square

#51CB38 #389ACB #B238CB #CB6838

split-complementary

#51CB38 #6838CB #CB389A

monochromatic

#2A6C1C #3D9D29 #51CB38 #7BD869 #A6E499

Accessibility & contrast

On white

2.11

#51CB38 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.95

#51CB38 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CB38

9.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CB38	#FFFFFF	#000000	##000000
##51CB38	1.00	2.11	9.95	9.95
#FFFFFF	2.11	1.00	21.00	21.00
#000000	9.95	21.00	1.00	1.00
##000000	9.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0B91D

Deuteranopia (green-blind)

#C1AF47

Tritanopia (blue-blind)

#3FC5AE

Achromatopsia (no color)

#B2B2B2

Design tokens & code

CSS

--color: #51cb38;
/* rgb */ color: rgb(81, 203, 56);
/* oklch */ color: oklch(74.5% 0.213 140.6);

Tailwind

colors: {
  custom: {
    50: '#8fdc78',
    500: '#51cb38',
    950: '#000000',
  },
}

SCSS

$custom: #51cb38;
$custom-light: #8fdc78;
$custom-dark: #000000;

JSON

{
  "hex": "#51cb38",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 56
  },
  "hsl": {
    "h": 109.796,
    "s": 58.566,
    "l": 50.784
  },
  "oklch": {
    "l": 0.74498,
    "c": 0.21295,
    "h": 140.6
  },
  "luminance": 0.44747
}

Semantic roles & 50–950 ramp

primary

#51CB38

secondary

#C58FD0

accent

#46E2C7

background

#F9FDF7

surface

#F2FBEE

border

#CCD4C9

text

#0E1509

muted

#7E837B

Preview Lab

Preview with #51CB38

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

Preview Lab → · Contrast checker → · Palette generator →