#51D980#51D980

#51D980 is a light, vivid green. Relative luminance 0.529; OKLCH L 79.0% C 0.173 H 151.6°. Best body text is #000000 at 11.59:1 contrast (WCAG AA passes).

Color values

HEX	#51D980
RGB	rgb(81, 217, 128)
HSL	hsl(141, 64%, 58%)
HSV	hsv(141, 63%, 85%)
CMYK	cmyk(62.7%, 0%, 41%, 14.9%)
CIE-LAB	lab(77.83, -56.26, 33.19)
CIE-LCH	lch(77.83, 65.32, 149.46°)
OKLab	oklab(78.97% -0.152 0.0822)
OKLCH	oklch(78.97% 0.173 151.6)
XYZ	xyz(32.0999, 52.9303, 28.9428)
Luminance	0.5293 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D980 #D951AA

analogous

#66D951 #51D980 #51D9C4

triadic

#51D980 #8051D9 #D98051

tetradic

#51D980 #5166D9 #D951AA #D9C451

square

#51D980 #5166D9 #D951AA #D9C451

split-complementary

#51D980 #C451D9 #D95166

monochromatic

#1F9046 #2AC25F #51D980 #83E4A5 #B5EFC9

Accessibility & contrast

On white

1.81

#51D980 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.59

#51D980 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D980

11.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D980	#FFFFFF	#000000	##000000
##51D980	1.00	1.81	11.59	11.59
#FFFFFF	1.81	1.00	21.00	21.00
#000000	11.59	21.00	1.00	1.00
##000000	11.59	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC87A

Deuteranopia (green-blind)

#C8BC86

Tritanopia (blue-blind)

#1CD6C3

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d980;
/* rgb */ color: rgb(81, 217, 128);
/* oklch */ color: oklch(79.0% 0.173 151.6);

Tailwind

colors: {
  custom: {
    50: '#8fe6a6',
    500: '#51d980',
    950: '#000000',
  },
}

SCSS

$custom: #51d980;
$custom-light: #8fe6a6;
$custom-dark: #000000;

JSON

{
  "hex": "#51d980",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 128
  },
  "hsl": {
    "h": 140.735,
    "s": 64.151,
    "l": 58.431
  },
  "oklch": {
    "l": 0.78969,
    "c": 0.17281,
    "h": 151.6
  },
  "luminance": 0.52934
}

Semantic roles & 50–950 ramp

primary

#51D980

secondary

#953975

accent

#41AEE7

background

#FCFEFC

surface

#F5FCF6

border

#CFD5D0

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D980

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

Preview Lab → · Contrast checker → · Palette generator →