#51D888#51D888

#51D888 is a light, vivid green. Relative luminance 0.526; OKLCH L 78.9% C 0.164 H 153.9°. Best body text is #000000 at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#51D888
RGB	rgb(81, 216, 136)
HSL	hsl(144, 63%, 58%)
HSV	hsv(144, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 37%, 15.3%)
CIE-LAB	lab(77.66, -54.46, 28.87)
CIE-LCH	lch(77.66, 61.64, 152.07°)
OKLab	oklab(78.87% -0.1474 0.0722)
OKLCH	oklch(78.87% 0.164 153.9)
XYZ	xyz(32.3904, 52.6353, 31.7404)
Luminance	0.5264 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D888 #D851A1

analogous

#5ED851 #51D888 #51D8CB

triadic

#51D888 #8851D8 #D88851

tetradic

#51D888 #515ED8 #D851A1 #D8CB51

square

#51D888 #515ED8 #D851A1 #D8CB51

split-complementary

#51D888 #CB51D8 #D8515E

monochromatic

#208F4D #2BC168 #51D888 #83E3AA #B5EECC

Accessibility & contrast

On white

1.82

#51D888 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.53

#51D888 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D888

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D888	#FFFFFF	#000000	##000000
##51D888	1.00	1.82	11.53	11.53
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.53	21.00	1.00	1.00
##000000	11.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D8C783

Deuteranopia (green-blind)

#C6BB8D

Tritanopia (blue-blind)

#13D6C4

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51d888;
/* rgb */ color: rgb(81, 216, 136);
/* oklch */ color: oklch(78.9% 0.164 153.9);

Tailwind

colors: {
  custom: {
    50: '#8fe5ab',
    500: '#51d888',
    950: '#000000',
  },
}

SCSS

$custom: #51d888;
$custom-light: #8fe5ab;
$custom-dark: #000000;

JSON

{
  "hex": "#51d888",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 136
  },
  "hsl": {
    "h": 144.444,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.78868,
    "c": 0.16418,
    "h": 153.9
  },
  "luminance": 0.52639
}

Semantic roles & 50–950 ramp

primary

#51D888

secondary

#94396F

accent

#41A3E6

background

#FCFEFD

surface

#F5FCF7

border

#CFD5D0

text

#0E1610

muted

#7F8481

Preview Lab

Preview with #51D888

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

Preview Lab → · Contrast checker → · Palette generator →