#51DD7E#51DD7E

#51DD7E is a light, vivid green. Relative luminance 0.550; OKLCH L 79.9% C 0.180 H 150.7°. Best body text is #000000 at 11.99:1 contrast (WCAG AA passes).

Color values

HEX	#51DD7E
RGB	rgb(81, 221, 126)
HSL	hsl(139, 67%, 59%)
HSV	hsv(139, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 43%, 13.3%)
CIE-LAB	lab(79.02, -58.11, 35.74)
CIE-LCH	lch(79.02, 68.22, 148.41°)
OKLab	oklab(79.94% -0.1569 0.0881)
OKLCH	oklch(79.94% 0.18 150.7)
XYZ	xyz(33.0131, 54.9652, 28.6042)
Luminance	0.5497 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD7E #DD51B0

analogous

#6ADD51 #51DD7E #51DDC4

triadic

#51DD7E #7E51DD #DD7E51

tetradic

#51DD7E #516ADD #DD51B0 #DDC451

square

#51DD7E #516ADD #DD51B0 #DDC451

split-complementary

#51DD7E #C451DD #DD516A

monochromatic

#1D9644 #27C95B #51DD7E #84E7A4 #B7F1CA

Accessibility & contrast

On white

1.75

#51DD7E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.99

#51DD7E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD7E

11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD7E	#FFFFFF	#000000	##000000
##51DD7E	1.00	1.75	11.99	11.99
#FFFFFF	1.75	1.00	21.00	21.00
#000000	11.99	21.00	1.00	1.00
##000000	11.99	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DECB77

Deuteranopia (green-blind)

#CCBF84

Tritanopia (blue-blind)

#1AD9C6

Achromatopsia (no color)

#C4C4C4

Design tokens & code

CSS

--color: #51dd7e;
/* rgb */ color: rgb(81, 221, 126);
/* oklch */ color: oklch(79.9% 0.180 150.7);

Tailwind

colors: {
  custom: {
    50: '#90e9a4',
    500: '#51dd7e',
    950: '#000000',
  },
}

SCSS

$custom: #51dd7e;
$custom-light: #90e9a4;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd7e",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 126
  },
  "hsl": {
    "h": 139.286,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79937,
    "c": 0.17992,
    "h": 150.7
  },
  "luminance": 0.54969
}

Semantic roles & 50–950 ramp

primary

#51DD7E

secondary

#9B387B

accent

#3EB3EA

background

#FCFEFC

surface

#F5FDF6

border

#CFD5D0

text

#0E160F

muted

#7F8480

Preview Lab

Preview with #51DD7E

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

Preview Lab → · Contrast checker → · Palette generator →