#51DD5F#51DD5F

#51DD5F is a light, highly saturated green. Relative luminance 0.543; OKLCH L 79.5% C 0.207 H 144.9°. Best body text is #000000 at 11.86:1 contrast (WCAG AA passes).

Color values

HEX	#51DD5F
RGB	rgb(81, 221, 95)
HSL	hsl(126, 67%, 59%)
HSV	hsv(126, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 57%, 13.3%)
CIE-LAB	lab(78.63, -62.55, 50.12)
CIE-LCH	lch(78.63, 80.16, 141.29°)
OKLab	oklab(79.48% -0.1693 0.1188)
OKLCH	oklch(79.48% 0.207 144.9)
XYZ	xyz(31.3134, 54.2853, 19.6522)
Luminance	0.5429 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD5F #DD51CF

analogous

#89DD51 #51DD5F #51DDA5

triadic

#51DD5F #5F51DD #DD5F51

tetradic

#51DD5F #5189DD #DD51CF #DDA551

square

#51DD5F #5189DD #DD51CF #DDA551

split-complementary

#51DD5F #A551DD #DD5189

monochromatic

#1D9629 #27C938 #51DD5F #84E78E #B7F1BD

Accessibility & contrast

On white

1.77

#51DD5F on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.86

#51DD5F on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD5F

11.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD5F	#FFFFFF	#000000	##000000
##51DD5F	1.00	1.77	11.86	11.86
#FFFFFF	1.77	1.00	21.00	21.00
#000000	11.86	21.00	1.00	1.00
##000000	11.86	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#E1CA52

Deuteranopia (green-blind)

#CFBE69

Tritanopia (blue-blind)

#2ED8C1

Achromatopsia (no color)

#C3C3C3

Design tokens & code

CSS

--color: #51dd5f;
/* rgb */ color: rgb(81, 221, 95);
/* oklch */ color: oklch(79.5% 0.207 144.9);

Tailwind

colors: {
  custom: {
    50: '#91e990',
    500: '#51dd5f',
    950: '#000000',
  },
}

SCSS

$custom: #51dd5f;
$custom-light: #91e990;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd5f",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 95
  },
  "hsl": {
    "h": 126,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79484,
    "c": 0.2068,
    "h": 144.9
  },
  "luminance": 0.54288
}

Semantic roles & 50–950 ramp

primary

#51DD5F

secondary

#9B3891

accent

#3ED9EA

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160D

muted

#7F847F

Preview Lab

Preview with #51DD5F

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

Preview Lab → · Contrast checker → · Palette generator →