#51DD5B#51DD5B

#51DD5B is a light, highly saturated green. Relative luminance 0.542; OKLCH L 79.4% C 0.210 H 144.4°. Best body text is #000000 at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#51DD5B
RGB	rgb(81, 221, 91)
HSL	hsl(124, 67%, 59%)
HSV	hsv(124, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 58.8%, 13.3%)
CIE-LAB	lab(78.59, -63.02, 51.87)
CIE-LCH	lch(78.59, 81.63, 140.54°)
OKLab	oklab(79.44% -0.1707 0.1223)
OKLCH	oklch(79.44% 0.21 144.4)
XYZ	xyz(31.1362, 54.2144, 18.7191)
Luminance	0.5422 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD5B #DD51D3

analogous

#8DDD51 #51DD5B #51DDA1

triadic

#51DD5B #5B51DD #DD5B51

tetradic

#51DD5B #518DDD #DD51D3 #DDA151

square

#51DD5B #518DDD #DD51D3 #DDA151

split-complementary

#51DD5B #A151DD #DD518D

monochromatic

#1D9626 #27C933 #51DD5B #84E78B #B7F1BC

Accessibility & contrast

On white

1.77

#51DD5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.84

#51DD5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD5B

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD5B	#FFFFFF	#000000	##000000
##51DD5B	1.00	1.77	11.84	11.84
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.84	21.00	1.00	1.00
##000000	11.84	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1CA4D

Deuteranopia (green-blind)

#D0BE65

Tritanopia (blue-blind)

#30D7C1

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dd5b;
/* rgb */ color: rgb(81, 221, 91);
/* oklch */ color: oklch(79.4% 0.210 144.4);

Tailwind

colors: {
  custom: {
    50: '#91e98d',
    500: '#51dd5b',
    950: '#000000',
  },
}

SCSS

$custom: #51dd5b;
$custom-light: #91e98d;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd5b",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 91
  },
  "hsl": {
    "h": 124.286,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79437,
    "c": 0.20999,
    "h": 144.4
  },
  "luminance": 0.54218
}

Semantic roles & 50–950 ramp

primary

#51DD5B

secondary

#9B3894

accent

#3EDEEA

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DD5B

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

Preview Lab → · Contrast checker → · Palette generator →