#51B830#51B830

#51B830 is a light, vivid green. Relative luminance 0.362; OKLCH L 69.5% C 0.195 H 139.3°. Best body text is #000000 at 8.25:1 contrast (WCAG AA passes).

Color values

HEX	#51B830
RGB	rgb(81, 184, 48)
HSL	hsl(105, 59%, 45%)
HSV	hsv(105, 74%, 72%)
CMYK	cmyk(56%, 0%, 73.9%, 27.8%)
CIE-LAB	lab(66.70, -53.89, 56.51)
CIE-LCH	lch(66.70, 78.09, 133.64°)
OKLab	oklab(69.51% -0.1483 0.1273)
OKLCH	oklch(69.51% 0.195 139.3)
XYZ	xyz(21.0665, 36.2419, 8.6810)
Luminance	0.3624 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B830 #9730B8

analogous

#95B830 #51B830 #30B853

triadic

#51B830 #3051B8 #B83051

tetradic

#51B830 #3095B8 #9730B8 #B85330

square

#51B830 #3095B8 #9730B8 #B85330

split-complementary

#51B830 #5330B8 #B83095

monochromatic

#265717 #3C8723 #51B830 #72D253 #9ADF84

Accessibility & contrast

On white

2.55

#51B830 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.25

#51B830 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B830

8.25:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B830	#FFFFFF	#000000	##000000
##51B830	1.00	2.55	8.25	8.25
#FFFFFF	2.55	1.00	21.00	21.00
#000000	8.25	21.00	1.00	1.00
##000000	8.25	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDA815

Deuteranopia (green-blind)

#B09F3E

Tritanopia (blue-blind)

#46B29E

Achromatopsia (no color)

#A2A2A2

Design tokens & code

CSS

--color: #51b830;
/* rgb */ color: rgb(81, 184, 48);
/* oklch */ color: oklch(69.5% 0.195 139.3);

Tailwind

colors: {
  custom: {
    50: '#8dce71',
    500: '#51b830',
    950: '#000000',
  },
}

SCSS

$custom: #51b830;
$custom-light: #8dce71;
$custom-dark: #000000;

JSON

{
  "hex": "#51b830",
  "rgb": {
    "r": 81,
    "g": 184,
    "b": 48
  },
  "hsl": {
    "h": 105.441,
    "s": 58.621,
    "l": 45.49
  },
  "oklch": {
    "l": 0.69511,
    "c": 0.19546,
    "h": 139.3
  },
  "luminance": 0.36244
}

Semantic roles & 50–950 ramp

primary

#51B830

secondary

#B67CC8

accent

#46E2BC

background

#F9FCF7

surface

#F1F9ED

border

#CBD2C8

text

#0D1408

muted

#7E827B

Preview Lab

Preview with #51B830

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

Preview Lab → · Contrast checker → · Palette generator →