#51DE7B#51DE7B

#51DE7B is a light, vivid green. Relative luminance 0.554; OKLCH L 80.1% C 0.184 H 149.9°. Best body text is #000000 at 12.08:1 contrast (WCAG AA passes).

Color values

HEX	#51DE7B
RGB	rgb(81, 222, 123)
HSL	hsl(138, 68%, 59%)
HSV	hsv(138, 64%, 87%)
CMYK	cmyk(63.5%, 0%, 44.6%, 12.9%)
CIE-LAB	lab(79.28, -58.97, 37.57)
CIE-LCH	lch(79.28, 69.92, 147.50°)
OKLab	oklab(80.14% -0.1591 0.0923)
OKLCH	oklch(80.14% 0.184 149.9)
XYZ	xyz(33.0872, 55.4186, 27.6882)
Luminance	0.5542 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DE7B #DE51B4

analogous

#6EDE51 #51DE7B #51DEC1

triadic

#51DE7B #7B51DE #DE7B51

tetradic

#51DE7B #516EDE #DE51B4 #DEC151

square

#51DE7B #516EDE #DE51B4 #DEC151

split-complementary

#51DE7B #C151DE #DE516E

monochromatic

#1D9841 #27CB58 #51DE7B #84E8A2 #B8F2C9

Accessibility & contrast

On white

1.74

#51DE7B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.08

#51DE7B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DE7B

12.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DE7B	#FFFFFF	#000000	##000000
##51DE7B	1.00	1.74	12.08	12.08
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.08	21.00	1.00	1.00
##000000	12.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCC73

Deuteranopia (green-blind)

#CDBF82

Tritanopia (blue-blind)

#1CDAC6

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51de7b;
/* rgb */ color: rgb(81, 222, 123);
/* oklch */ color: oklch(80.1% 0.184 149.9);

Tailwind

colors: {
  custom: {
    50: '#90e9a2',
    500: '#51de7b',
    950: '#000000',
  },
}

SCSS

$custom: #51de7b;
$custom-light: #90e9a2;
$custom-dark: #000000;

JSON

{
  "hex": "#51de7b",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 123
  },
  "hsl": {
    "h": 137.872,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80137,
    "c": 0.18394,
    "h": 149.9
  },
  "luminance": 0.55422
}

Semantic roles & 50–950 ramp

primary

#51DE7B

secondary

#9C377E

accent

#3DB7EB

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DE7B

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

Preview Lab → · Contrast checker → · Palette generator →