#51DD59#51DD59

#51DD59 is a light, highly saturated green. Relative luminance 0.542; OKLCH L 79.4% C 0.212 H 144.1°. Best body text is #000000 at 11.84:1 contrast (WCAG AA passes).

Color values

HEX	#51DD59
RGB	rgb(81, 221, 89)
HSL	hsl(123, 67%, 59%)
HSV	hsv(123, 63%, 87%)
CMYK	cmyk(63.3%, 0%, 59.7%, 13.3%)
CIE-LAB	lab(78.57, -63.25, 52.73)
CIE-LCH	lch(78.57, 82.35, 140.18°)
OKLab	oklab(79.41% -0.1714 0.1239)
OKLCH	oklch(79.41% 0.212 144.1)
XYZ	xyz(31.0511, 54.1804, 18.2707)
Luminance	0.5418 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DD59 #DD51D5

analogous

#8FDD51 #51DD59 #51DD9F

triadic

#51DD59 #5951DD #DD5951

tetradic

#51DD59 #518FDD #DD51D5 #DD9F51

square

#51DD59 #518FDD #DD51D5 #DD9F51

split-complementary

#51DD59 #9F51DD #DD518F

monochromatic

#1D9624 #27C931 #51DD59 #84E78A #B7F1BB

Accessibility & contrast

On white

1.77

#51DD59 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.84

#51DD59 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DD59

11.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DD59	#FFFFFF	#000000	##000000
##51DD59	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)

#E1CA4B

Deuteranopia (green-blind)

#D0BE64

Tritanopia (blue-blind)

#30D7C1

Achromatopsia (no color)

#C2C2C2

Design tokens & code

CSS

--color: #51dd59;
/* rgb */ color: rgb(81, 221, 89);
/* oklch */ color: oklch(79.4% 0.212 144.1);

Tailwind

colors: {
  custom: {
    50: '#91e98c',
    500: '#51dd59',
    950: '#000000',
  },
}

SCSS

$custom: #51dd59;
$custom-light: #91e98c;
$custom-dark: #000000;

JSON

{
  "hex": "#51dd59",
  "rgb": {
    "r": 81,
    "g": 221,
    "b": 89
  },
  "hsl": {
    "h": 123.429,
    "s": 67.308,
    "l": 59.216
  },
  "oklch": {
    "l": 0.79414,
    "c": 0.21153,
    "h": 144.1
  },
  "luminance": 0.54184
}

Semantic roles & 50–950 ramp

primary

#51DD59

secondary

#9B3895

accent

#3EE0EA

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DD59

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

Preview Lab → · Contrast checker → · Palette generator →