#51DA55#51DA55

#51DA55 is a light, highly saturated green. Relative luminance 0.525; OKLCH L 78.6% C 0.211 H 143.7°. Best body text is #000000 at 11.51:1 contrast (WCAG AA passes).

Color values

HEX	#51DA55
RGB	rgb(81, 218, 85)
HSL	hsl(122, 65%, 59%)
HSV	hsv(122, 63%, 85%)
CMYK	cmyk(62.8%, 0%, 61%, 14.5%)
CIE-LAB	lab(77.61, -62.65, 53.38)
CIE-LCH	lch(77.61, 82.31, 139.57°)
OKLab	oklab(78.61% -0.17 0.125)
OKLCH	oklch(78.61% 0.211 143.7)
XYZ	xyz(30.1027, 52.5450, 17.1484)
Luminance	0.5255 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DA55 #DA51D6

analogous

#91DA51 #51DA55 #51DA99

triadic

#51DA55 #5551DA #DA5551

tetradic

#51DA55 #5191DA #DA51D6 #DA9951

square

#51DA55 #5191DA #DA51D6 #DA9951

split-complementary

#51DA55 #9951DA #DA5191

monochromatic

#1F9222 #2AC42E #51DA55 #83E586 #B6EFB8

Accessibility & contrast

On white

1.82

#51DA55 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.51

#51DA55 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DA55

11.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DA55	#FFFFFF	#000000	##000000
##51DA55	1.00	1.82	11.51	11.51
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.51	21.00	1.00	1.00
##000000	11.51	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC746

Deuteranopia (green-blind)

#CDBB60

Tritanopia (blue-blind)

#33D4BE

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51da55;
/* rgb */ color: rgb(81, 218, 85);
/* oklch */ color: oklch(78.6% 0.211 143.7);

Tailwind

colors: {
  custom: {
    50: '#91e789',
    500: '#51da55',
    950: '#000000',
  },
}

SCSS

$custom: #51da55;
$custom-light: #91e789;
$custom-dark: #000000;

JSON

{
  "hex": "#51da55",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 85
  },
  "hsl": {
    "h": 121.752,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.78607,
    "c": 0.21098,
    "h": 143.7
  },
  "luminance": 0.52548
}

Semantic roles & 50–950 ramp

primary

#51DA55

secondary

#973994

accent

#40E3E8

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DA55

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

Preview Lab → · Contrast checker → · Palette generator →