#51D87B#51D87B

#51D87B is a light, vivid green. Relative luminance 0.523; OKLCH L 78.6% C 0.176 H 150.5°. Best body text is #000000 at 11.46:1 contrast (WCAG AA passes).

Color values

HEX	#51D87B
RGB	rgb(81, 216, 123)
HSL	hsl(139, 63%, 58%)
HSV	hsv(139, 63%, 85%)
CMYK	cmyk(62.5%, 0%, 43.1%, 15.3%)
CIE-LAB	lab(77.45, -56.72, 35.22)
CIE-LCH	lch(77.45, 66.76, 148.16°)
OKLab	oklab(78.63% -0.1532 0.0868)
OKLCH	oklch(78.63% 0.176 150.5)
XYZ	xyz(31.5219, 52.2879, 27.1664)
Luminance	0.5229 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D87B #D851AE

analogous

#6AD851 #51D87B #51D8BF

triadic

#51D87B #7B51D8 #D87B51

tetradic

#51D87B #516AD8 #D851AE #D8BF51

square

#51D87B #516AD8 #D851AE #D8BF51

split-complementary

#51D87B #BF51D8 #D8516A

monochromatic

#208F42 #2BC15A #51D87B #83E3A1 #B5EEC7

Accessibility & contrast

On white

1.83

#51D87B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.46

#51D87B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D87B

11.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D87B	#FFFFFF	#000000	##000000
##51D87B	1.00	1.83	11.46	11.46
#FFFFFF	1.83	1.00	21.00	21.00
#000000	11.46	21.00	1.00	1.00
##000000	11.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D9C774

Deuteranopia (green-blind)

#C8BB81

Tritanopia (blue-blind)

#21D5C1

Achromatopsia (no color)

#BFBFBF

Design tokens & code

CSS

--color: #51d87b;
/* rgb */ color: rgb(81, 216, 123);
/* oklch */ color: oklch(78.6% 0.176 150.5);

Tailwind

colors: {
  custom: {
    50: '#8fe5a2',
    500: '#51d87b',
    950: '#000000',
  },
}

SCSS

$custom: #51d87b;
$custom-light: #8fe5a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51d87b",
  "rgb": {
    "r": 81,
    "g": 216,
    "b": 123
  },
  "hsl": {
    "h": 138.667,
    "s": 63.38,
    "l": 58.235
  },
  "oklch": {
    "l": 0.78631,
    "c": 0.17606,
    "h": 150.5
  },
  "luminance": 0.52291
}

Semantic roles & 50–950 ramp

primary

#51D87B

secondary

#943978

accent

#41B3E6

background

#FCFEFC

surface

#F5FCF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51D87B

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

Preview Lab → · Contrast checker → · Palette generator →