#51D877#51D877

#51D877 is a light, vivid green. Relative luminance 0.522; OKLCH L 78.6% C 0.180 H 149.5°. Best body text is #000000 at 11.44:1 contrast (WCAG AA passes).

Color values

HEX	#51D877
RGB	rgb(81, 216, 119)
HSL	hsl(137, 63%, 58%)
HSV	hsv(137, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 44.9%, 15.3%)
CIE-LAB	lab(77.39, -57.37, 37.14)
CIE-LCH	lch(77.39, 68.34, 147.08°)
OKLab	oklab(78.56% -0.1549 0.0911)
OKLCH	oklch(78.56% 0.18 149.5)
XYZ	xyz(31.2766, 52.1898, 25.8746)
Luminance	0.5219 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D877 #D851B2

analogous

#6ED851 #51D877 #51D8BA

triadic

#51D877 #7751D8 #D87751

tetradic

#51D877 #516ED8 #D851B2 #D8BA51

square

#51D877 #516ED8 #D851B2 #D8BA51

split-complementary

#51D877 #BA51D8 #D8516E

monochromatic

#208F3F #2BC155 #51D877 #83E39E #B5EEC5

Accessibility & contrast

On white

1.84

#51D877 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.44

#51D877 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D877

11.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D877	#FFFFFF	#000000	##000000
##51D877	1.00	1.84	11.44	11.44
#FFFFFF	1.84	1.00	21.00	21.00
#000000	11.44	21.00	1.00	1.00
##000000	11.44	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DAC670

Deuteranopia (green-blind)

#C8BA7E

Tritanopia (blue-blind)

#24D4C1

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51d877;
/* rgb */ color: rgb(81, 216, 119);
/* oklch */ color: oklch(78.6% 0.180 149.5);

Tailwind

colors: {
  custom: {
    50: '#8fe59f',
    500: '#51d877',
    950: '#000000',
  },
}

SCSS

$custom: #51d877;
$custom-light: #8fe59f;
$custom-dark: #000000;

JSON

{
  "hex": "#51d877",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 119
  },
  "hsl": {
    "h": 136.889,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.78564,
    "c": 0.17969,
    "h": 149.5
  },
  "luminance": 0.52193
}

Semantic roles & 50–950 ramp

primary

#51D877

secondary

#94397A

accent

#41B8E6

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D877

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

Preview Lab → · Contrast checker → · Palette generator →