#51BB25#51BB25

#51BB25 is a light, highly saturated green. Relative luminance 0.374; OKLCH L 70.2% C 0.205 H 138.7°. Best body text is #000000 at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#51BB25
RGB	rgb(81, 187, 37)
HSL	hsl(102, 67%, 44%)
HSV	hsv(102, 80%, 73%)
CMYK	cmyk(56.7%, 0%, 80.2%, 26.7%)
CIE-LAB	lab(67.59, -55.67, 60.92)
CIE-LCH	lch(67.59, 82.53, 132.42°)
OKLab	oklab(70.23% -0.1537 0.135)
OKLCH	oklch(70.23% 0.205 138.7)
XYZ	xyz(21.4968, 37.4217, 7.8402)
Luminance	0.3742 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB25 #8F25BB

analogous

#9CBB25 #51BB25 #25BB44

triadic

#51BB25 #2551BB #BB2551

tetradic

#51BB25 #259CBB #8F25BB #BB4425

square

#51BB25 #259CBB #8F25BB #BB4425

split-complementary

#51BB25 #4425BB #BB259C

monochromatic

#255511 #3B881B #51BB25 #6FDA43 #97E476

Accessibility & contrast

On white

2.48

#51BB25 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.48

#51BB25 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB25

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB25	#FFFFFF	#000000	##000000
##51BB25	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)

#B4A137

Tritanopia (blue-blind)

#46B4A0

Achromatopsia (no color)

#A5A5A5

Design tokens & code

CSS

--color: #51bb25;
/* rgb */ color: rgb(81, 187, 37);
/* oklch */ color: oklch(70.2% 0.205 138.7);

Tailwind

colors: {
  custom: {
    50: '#8ed06d',
    500: '#51bb25',
    950: '#000000',
  },
}

SCSS

$custom: #51bb25;
$custom-light: #8ed06d;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb25",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 37
  },
  "hsl": {
    "h": 102.4,
    "s": 66.964,
    "l": 43.922
  },
  "oklch": {
    "l": 0.70225,
    "c": 0.20456,
    "h": 138.7
  },
  "luminance": 0.37424
}

Semantic roles & 50–950 ramp

primary

#51BB25

secondary

#B170CB

accent

#3EEAB7

background

#F9FCF6

surface

#F2F9EC

border

#CCD2C7

text

#0D1408

muted

#7E827B

Preview Lab

Preview with #51BB25

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

Preview Lab → · Contrast checker → · Palette generator →