#51D18F#51D18F

#51D18F is a light, vivid green. Relative luminance 0.493; OKLCH L 77.3% C 0.148 H 157.4°. Best body text is #000000 at 10.87:1 contrast (WCAG AA passes).

Color values

HEX	#51D18F
RGB	rgb(81, 209, 143)
HSL	hsl(149, 58%, 57%)
HSV	hsv(149, 61%, 82%)
CMYK	cmyk(61.2%, 0%, 31.6%, 18%)
CIE-LAB	lab(75.66, -50.35, 22.53)
CIE-LCH	lch(75.66, 55.16, 155.89°)
OKLab	oklab(77.27% -0.1371 0.057)
OKLCH	oklch(77.27% 0.148 157.4)
XYZ	xyz(31.1490, 49.3303, 33.8614)
Luminance	0.4933 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D18F #D15193

analogous

#53D151 #51D18F #51D1CF

triadic

#51D18F #8F51D1 #D18F51

tetradic

#51D18F #5153D1 #D15193 #D1CF51

square

#51D18F #5153D1 #D15193 #D1CF51

split-complementary

#51D18F #CF51D1 #D15153

monochromatic

#238552 #30B570 #51D18F #81DEAE #B2EBCD

Accessibility & contrast

On white

1.93

#51D18F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.87

#51D18F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D18F

10.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D18F	#FFFFFF	#000000	##000000
##51D18F	1.00	1.93	10.87	10.87
#FFFFFF	1.93	1.00	21.00	21.00
#000000	10.87	21.00	1.00	1.00
##000000	10.87	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D0C28B

Deuteranopia (green-blind)

#BEB593

Tritanopia (blue-blind)

#10D0C0

Achromatopsia (no color)

#BABABA

Design tokens & code

CSS

--color: #51d18f;
/* rgb */ color: rgb(81, 209, 143);
/* oklch */ color: oklch(77.3% 0.148 157.4);

Tailwind

colors: {
  custom: {
    50: '#8ee0b0',
    500: '#51d18f',
    950: '#000000',
  },
}

SCSS

$custom: #51d18f;
$custom-light: #8ee0b0;
$custom-dark: #000000;

JSON

{
  "hex": "#51d18f",
  "rgb": {
    "r": 81,
    "g": 209,
    "b": 143
  },
  "hsl": {
    "h": 149.063,
    "s": 58.182,
    "l": 56.863
  },
  "oklch": {
    "l": 0.77266,
    "c": 0.14845,
    "h": 157.4
  },
  "luminance": 0.49333
}

Semantic roles & 50–950 ramp

primary

#51D18F

secondary

#D9A5C0

accent

#4696E1

background

#F9FDFA

surface

#F2FBF4

border

#CCD4CE

text

#0D1510

muted

#7E837F

Preview Lab

Preview with #51D18F

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

Preview Lab → · Contrast checker → · Palette generator →