#51BB66#51BB66

#51BB66 is a light, vivid green. Relative luminance 0.382; OKLCH L 70.9% C 0.156 H 147.8°. Best body text is #000000 at 8.65:1 contrast (WCAG AA passes).

Color values

HEX	#51BB66
RGB	rgb(81, 187, 102)
HSL	hsl(132, 44%, 53%)
HSV	hsv(132, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 45.5%, 26.7%)
CIE-LAB	lab(68.20, -48.85, 33.99)
CIE-LCH	lch(68.20, 59.51, 145.17°)
OKLab	oklab(70.92% -0.1322 0.0833)
OKLCH	oklch(70.92% 0.156 147.8)
XYZ	xyz(23.5604, 38.2472, 18.7087)
Luminance	0.3825 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB66 #BB51A6

analogous

#71BB51 #51BB66 #51BB9B

triadic

#51BB66 #6651BB #BB6651

tetradic

#51BB66 #5171BB #BB51A6 #BB9B51

square

#51BB66 #5171BB #BB51A6 #BB9B51

split-complementary

#51BB66 #9B51BB #BB5171

monochromatic

#296936 #3A954C #51BB66 #7DCC8D #A9DDB3

Accessibility & contrast

On white

2.43

#51BB66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.65

#51BB66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB66

8.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB66	#FFFFFF	#000000	##000000
##51BB66	1.00	2.43	8.65	8.65
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.65	21.00	1.00	1.00
##000000	8.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDAC5F

Deuteranopia (green-blind)

#AFA26C

Tritanopia (blue-blind)

#39B7A7

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51bb66;
/* rgb */ color: rgb(81, 187, 102);
/* oklch */ color: oklch(70.9% 0.156 147.8);

Tailwind

colors: {
  custom: {
    50: '#8bd093',
    500: '#51bb66',
    950: '#000000',
  },
}

SCSS

$custom: #51bb66;
$custom-light: #8bd093;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb66",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 102
  },
  "hsl": {
    "h": 131.887,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70924,
    "c": 0.15626,
    "h": 147.8
  },
  "luminance": 0.38249
}

Semantic roles & 50–950 ramp

primary

#51BB66

secondary

#CB9DC2

accent

#54BAD4

background

#F9FCF9

surface

#F1F9F1

border

#CBD2CB

text

#0D140D

muted

#7E827E

Preview Lab

Preview with #51BB66

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

Preview Lab → · Contrast checker → · Palette generator →