#51BB20#51BB20

#51BB20 is a light, highly saturated green. Relative luminance 0.374; OKLCH L 70.2% C 0.207 H 138.4°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#51BB20
RGB	rgb(81, 187, 32)
HSL	hsl(101, 71%, 43%)
HSV	hsv(101, 83%, 73%)
CMYK	cmyk(56.7%, 0%, 82.9%, 26.7%)
CIE-LAB	lab(67.57, -55.93, 62.27)
CIE-LCH	lch(67.57, 83.70, 131.93°)
OKLab	oklab(70.2% -0.1546 0.1371)
OKLCH	oklch(70.2% 0.207 138.4)
XYZ	xyz(21.4236, 37.3925, 7.4547)
Luminance	0.3739 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB20 #8A20BB

analogous

#9EBB20 #51BB20 #20BB3C

triadic

#51BB20 #2051BB #BB2051

tetradic

#51BB20 #209EBB #8A20BB #BB3C20

square

#51BB20 #209EBB #8A20BB #BB3C20

split-complementary

#51BB20 #3C20BB #BB209E

monochromatic

#24520E #3A8717 #51BB20 #6EDD3B #95E66F

Accessibility & contrast

On white

2.48

#51BB20 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#51BB20 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB20

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB20	#FFFFFF	#000000	##000000
##51BB20	1.00	2.48	8.48	8.48
#FFFFFF	2.48	1.00	21.00	21.00
#000000	8.48	21.00	1.00	1.00
##000000	8.48	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C1AA00

Deuteranopia (green-blind)

#B4A134

Tritanopia (blue-blind)

#47B49F

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb20;
/* rgb */ color: rgb(81, 187, 32);
/* oklch */ color: oklch(70.2% 0.207 138.4);

Tailwind

colors: {
  custom: {
    50: '#8ed06b',
    500: '#51bb20',
    950: '#000000',
  },
}

SCSS

$custom: #51bb20;
$custom-light: #8ed06b;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb20",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 32
  },
  "hsl": {
    "h": 101.032,
    "s": 70.776,
    "l": 42.941
  },
  "oklch": {
    "l": 0.702,
    "c": 0.20666,
    "h": 138.4
  },
  "luminance": 0.37394
}

Semantic roles & 50–950 ramp

primary

#51BB20

secondary

#AE6ACD

accent

#3AEEB5

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0D1407

muted

#7E827A

Preview Lab

Preview with #51BB20

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

Preview Lab → · Contrast checker → · Palette generator →