#51BB73#51BB73

#51BB73 is a light, vivid green. Relative luminance 0.385; OKLCH L 71.2% C 0.144 H 151.5°. Best body text is #000000 at 8.71:1 contrast (WCAG AA passes).

Color values

HEX	#51BB73
RGB	rgb(81, 187, 115)
HSL	hsl(139, 44%, 53%)
HSV	hsv(139, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 38.5%, 26.7%)
CIE-LAB	lab(68.41, -46.67, 27.51)
CIE-LCH	lch(68.41, 54.17, 149.48°)
OKLab	oklab(71.16% -0.1265 0.0686)
OKLCH	oklch(71.16% 0.144 151.5)
XYZ	xyz(24.2564, 38.5256, 22.3742)
Luminance	0.3853 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB73 #BB5199

analogous

#64BB51 #51BB73 #51BBA8

triadic

#51BB73 #7351BB #BB7351

tetradic

#51BB73 #5164BB #BB5199 #BBA851

square

#51BB73 #5164BB #BB5199 #BBA851

split-complementary

#51BB73 #A851BB #BB5164

monochromatic

#29693D #3A9557 #51BB73 #7DCC96 #A9DDBA

Accessibility & contrast

On white

2.41

#51BB73 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.71

#51BB73 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB73

8.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB73	#FFFFFF	#000000	##000000
##51BB73	1.00	2.41	8.71	8.71
#FFFFFF	2.41	1.00	21.00	21.00
#000000	8.71	21.00	1.00	1.00
##000000	8.71	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BCAD6E

Deuteranopia (green-blind)

#ADA378

Tritanopia (blue-blind)

#34B8A9

Achromatopsia (no color)

#A7A7A7

Design tokens & code

CSS

--color: #51bb73;
/* rgb */ color: rgb(81, 187, 115);
/* oklch */ color: oklch(71.2% 0.144 151.5);

Tailwind

colors: {
  custom: {
    50: '#8bd09c',
    500: '#51bb73',
    950: '#000000',
  },
}

SCSS

$custom: #51bb73;
$custom-light: #8bd09c;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb73",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 115
  },
  "hsl": {
    "h": 139.245,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.71158,
    "c": 0.14386,
    "h": 151.5
  },
  "luminance": 0.38528
}

Semantic roles & 50–950 ramp

primary

#51BB73

secondary

#CB9DBC

accent

#54ABD4

background

#F8FCF9

surface

#F0F9F2

border

#CBD2CC

text

#0D140E

muted

#7D827E

Preview Lab

Preview with #51BB73

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

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