#51DE7E#51DE7E

#51DE7E is a light, vivid green. Relative luminance 0.555; OKLCH L 80.2% C 0.181 H 150.6°. Best body text is #000000 at 12.10:1 contrast (WCAG AA passes).

Color values

HEX	#51DE7E
RGB	rgb(81, 222, 126)
HSL	hsl(139, 68%, 59%)
HSV	hsv(139, 64%, 87%)
CMYK	cmyk(63.5%, 0%, 43.2%, 12.9%)
CIE-LAB	lab(79.33, -58.48, 36.13)
CIE-LCH	lch(79.33, 68.74, 148.29°)
OKLab	oklab(80.19% -0.1578 0.089)
OKLCH	oklch(80.19% 0.181 150.6)
XYZ	xyz(33.2779, 55.4948, 28.6924)
Luminance	0.5550 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DE7E #DE51B1

analogous

#6BDE51 #51DE7E #51DEC5

triadic

#51DE7E #7E51DE #DE7E51

tetradic

#51DE7E #516BDE #DE51B1 #DEC551

square

#51DE7E #516BDE #DE51B1 #DEC551

split-complementary

#51DE7E #C551DE #DE516B

monochromatic

#1D9844 #27CB5B #51DE7E #84E8A4 #B8F2CA

Accessibility & contrast

On white

1.74

#51DE7E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

12.10

#51DE7E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DE7E

12.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DE7E	#FFFFFF	#000000	##000000
##51DE7E	1.00	1.74	12.10	12.10
#FFFFFF	1.74	1.00	21.00	21.00
#000000	12.10	21.00	1.00	1.00
##000000	12.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DFCC77

Deuteranopia (green-blind)

#CDC084

Tritanopia (blue-blind)

#19DAC7

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51de7e;
/* rgb */ color: rgb(81, 222, 126);
/* oklch */ color: oklch(80.2% 0.181 150.6);

Tailwind

colors: {
  custom: {
    50: '#90e9a4',
    500: '#51de7e',
    950: '#000000',
  },
}

SCSS

$custom: #51de7e;
$custom-light: #90e9a4;
$custom-dark: #000000;

JSON

{
  "hex": "#51de7e",
  "rgb": {
    "r": 81,
    "g": 222,
    "b": 126
  },
  "hsl": {
    "h": 139.149,
    "s": 68.116,
    "l": 59.412
  },
  "oklch": {
    "l": 0.80187,
    "c": 0.18123,
    "h": 150.6
  },
  "luminance": 0.55498
}

Semantic roles & 50–950 ramp

primary

#51DE7E

secondary

#9C377C

accent

#3DB3EB

background

#FCFEFC

surface

#F5FDF6

border

#CFD5D0

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DE7E

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

Preview Lab → · Contrast checker → · Palette generator →