#51BB27#51BB27

#51BB27 is a light, highly saturated green. Relative luminance 0.374; OKLCH L 70.2% C 0.204 H 138.8°. Best body text is #000000 at 8.49:1 contrast (WCAG AA passes).

Color values

HEX	#51BB27
RGB	rgb(81, 187, 39)
HSL	hsl(103, 65%, 44%)
HSV	hsv(103, 79%, 73%)
CMYK	cmyk(56.7%, 0%, 79.1%, 26.7%)
CIE-LAB	lab(67.60, -55.56, 60.34)
CIE-LCH	lch(67.60, 82.03, 132.64°)
OKLab	oklab(70.24% -0.1533 0.1341)
OKLCH	oklch(70.24% 0.204 138.8)
XYZ	xyz(21.5290, 37.4346, 8.0102)
Luminance	0.3744 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB27 #9127BB

analogous

#9BBB27 #51BB27 #27BB47

triadic

#51BB27 #2751BB #BB2751

tetradic

#51BB27 #279BBB #9127BB #BB4727

square

#51BB27 #279BBB #9127BB #BB4727

split-complementary

#51BB27 #4727BB #BB279B

monochromatic

#255612 #3B881C #51BB27 #70D947 #97E379

Accessibility & contrast

On white

2.47

#51BB27 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.49

#51BB27 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB27

8.49:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB27	#FFFFFF	#000000	##000000
##51BB27	1.00	2.47	8.49	8.49
#FFFFFF	2.47	1.00	21.00	21.00
#000000	8.49	21.00	1.00	1.00
##000000	8.49	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#B3A138

Tritanopia (blue-blind)

#46B4A0

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb27;
/* rgb */ color: rgb(81, 187, 39);
/* oklch */ color: oklch(70.2% 0.204 138.8);

Tailwind

colors: {
  custom: {
    50: '#8dd06e',
    500: '#51bb27',
    950: '#000000',
  },
}

SCSS

$custom: #51bb27;
$custom-light: #8dd06e;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb27",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 39
  },
  "hsl": {
    "h": 102.973,
    "s": 65.487,
    "l": 44.314
  },
  "oklch": {
    "l": 0.70236,
    "c": 0.20364,
    "h": 138.8
  },
  "luminance": 0.37436
}

Semantic roles & 50–950 ramp

primary

#51BB27

secondary

#B273CB

accent

#3FE8B8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0D1408

muted

#7E827B

Preview Lab

Preview with #51BB27

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

Preview Lab → · Contrast checker → · Palette generator →