#51DE78#51DE78

#51DE78 is a light, vivid green. Relative luminance 0.553; OKLCH L 80.1% C 0.187 H 149.3°. Best body text is #000000 at 12.07:1 contrast (WCAG AA passes).

Color values

HEX	#51DE78
RGB	rgb(81, 222, 120)
HSL	hsl(137, 68%, 59%)
HSV	hsv(137, 64%, 87%)
CMYK	cmyk(63.5%, 0%, 45.9%, 12.9%)
CIE-LAB	lab(79.24, -59.44, 39.00)
CIE-LCH	lch(79.24, 71.09, 146.73°)
OKLab	oklab(80.09% -0.1604 0.0954)
OKLCH	oklch(80.09% 0.187 149.3)
XYZ	xyz(32.9023, 55.3446, 26.7143)
Luminance	0.5535 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DE78 #DE51B7

analogous

#71DE51 #51DE78 #51DEBF

triadic

#51DE78 #7851DE #DE7851

tetradic

#51DE78 #5171DE #DE51B7 #DEBF51

square

#51DE78 #5171DE #DE51B7 #DEBF51

split-complementary

#51DE78 #BF51DE #DE5171

monochromatic

#1D983F #27CB54 #51DE78 #84E8A0 #B8F2C8

Accessibility & contrast

On white

1.74

#51DE78 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.07

#51DE78 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DE78

12.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DE78	#FFFFFF	#000000	##000000
##51DE78	1.00	1.74	12.07	12.07
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.07	21.00	1.00	1.00
##000000	12.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E0CC70

Deuteranopia (green-blind)

#CEBF7F

Tritanopia (blue-blind)

#1FDAC6

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51de78;
/* rgb */ color: rgb(81, 222, 120);
/* oklch */ color: oklch(80.1% 0.187 149.3);

Tailwind

colors: {
  custom: {
    50: '#90e9a0',
    500: '#51de78',
    950: '#000000',
  },
}

SCSS

$custom: #51de78;
$custom-light: #90e9a0;
$custom-dark: #000000;

JSON

{
  "hex": "#51de78",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 120
  },
  "hsl": {
    "h": 136.596,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80088,
    "c": 0.18663,
    "h": 149.3
  },
  "luminance": 0.55348
}

Semantic roles & 50–950 ramp

primary

#51DE78

secondary

#9C3780

accent

#3DBBEB

background

#FCFEFC

surface

#F5FDF5

border

#CFD5CF

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DE78

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

Preview Lab → · Contrast checker → · Palette generator →