#51D855#51D855

#51D855 is a light, highly saturated green. Relative luminance 0.515; OKLCH L 78.1% C 0.209 H 143.7°. Best body text is #000000 at 11.30:1 contrast (WCAG AA passes).

Color values

HEX	#51D855
RGB	rgb(81, 216, 85)
HSL	hsl(122, 63%, 58%)
HSV	hsv(122, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 60.6%, 15.3%)
CIE-LAB	lab(76.99, -61.95, 52.68)
CIE-LCH	lch(76.99, 81.32, 139.62°)
OKLab	oklab(78.1% -0.1681 0.1235)
OKLCH	oklch(78.1% 0.209 143.7)
XYZ	xyz(29.5872, 51.5140, 16.9765)
Luminance	0.5152 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D855 #D851D4

analogous

#90D851 #51D855 #51D898

triadic

#51D855 #5551D8 #D85551

tetradic

#51D855 #5190D8 #D851D4 #D89851

square

#51D855 #5190D8 #D851D4 #D89851

split-complementary

#51D855 #9851D8 #D85190

monochromatic

#208F23 #2BC130 #51D855 #83E386 #B5EEB7

Accessibility & contrast

On white

1.86

#51D855 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.30

#51D855 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D855

11.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D855	#FFFFFF	#000000	##000000
##51D855	1.00	1.86	11.30	11.30
#FFFFFF	1.86	1.00	21.00	21.00
#000000	11.30	21.00	1.00	1.00
##000000	11.30	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DCC547

Deuteranopia (green-blind)

#CBBA60

Tritanopia (blue-blind)

#34D2BC

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51d855;
/* rgb */ color: rgb(81, 216, 85);
/* oklch */ color: oklch(78.1% 0.209 143.7);

Tailwind

colors: {
  custom: {
    50: '#90e589',
    500: '#51d855',
    950: '#000000',
  },
}

SCSS

$custom: #51d855;
$custom-light: #90e589;
$custom-dark: #000000;

JSON

{
  "hex": "#51d855",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 85
  },
  "hsl": {
    "h": 121.778,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.78098,
    "c": 0.20856,
    "h": 143.7
  },
  "luminance": 0.51517
}

Semantic roles & 50–950 ramp

primary

#51D855

secondary

#943991

accent

#41E2E6

background

#FCFEFC

surface

#F5FCF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51D855

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

Preview Lab → · Contrast checker → · Palette generator →