#51DA5B#51DA5B

#51DA5B is a light, highly saturated green. Relative luminance 0.526; OKLCH L 78.7% C 0.206 H 144.5°. Best body text is #000000 at 11.53:1 contrast (WCAG AA passes).

Color values

HEX	#51DA5B
RGB	rgb(81, 218, 91)
HSL	hsl(124, 65%, 59%)
HSV	hsv(124, 63%, 85%)
CMYK	cmyk(62.8%, 0%, 58.3%, 14.5%)
CIE-LAB	lab(77.66, -61.97, 50.80)
CIE-LCH	lch(77.66, 80.13, 140.66°)
OKLab	oklab(78.68% -0.1679 0.1199)
OKLCH	oklch(78.68% 0.206 144.5)
XYZ	xyz(30.3512, 52.6445, 18.4574)
Luminance	0.5265 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51DA5B #DA51D0

analogous

#8BDA51 #51DA5B #51DA9F

triadic

#51DA5B #5B51DA #DA5B51

tetradic

#51DA5B #518BDA #DA51D0 #DA9F51

square

#51DA5B #518BDA #DA51D0 #DA9F51

split-complementary

#51DA5B #9F51DA #DA518B

monochromatic

#1F9227 #2AC435 #51DA5B #83E58B #B6EFBA

Accessibility & contrast

On white

1.82

#51DA5B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.53

#51DA5B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51DA5B

11.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51DA5B	#FFFFFF	#000000	##000000
##51DA5B	1.00	1.82	11.53	11.53
#FFFFFF	1.82	1.00	21.00	21.00
#000000	11.53	21.00	1.00	1.00
##000000	11.53	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC74E

Deuteranopia (green-blind)

#CDBB65

Tritanopia (blue-blind)

#31D4BE

Achromatopsia (no color)

#C0C0C0

Design tokens & code

CSS

--color: #51da5b;
/* rgb */ color: rgb(81, 218, 91);
/* oklch */ color: oklch(78.7% 0.206 144.5);

Tailwind

colors: {
  custom: {
    50: '#91e78d',
    500: '#51da5b',
    950: '#000000',
  },
}

SCSS

$custom: #51da5b;
$custom-light: #91e78d;
$custom-dark: #000000;

JSON

{
  "hex": "#51da5b",
  "rgb": {
    "r": 81,
    "g": 218,
    "b": 91
  },
  "hsl": {
    "h": 124.38,
    "s": 64.929,
    "l": 58.627
  },
  "oklch": {
    "l": 0.78675,
    "c": 0.20632,
    "h": 144.5
  },
  "luminance": 0.52647
}

Semantic roles & 50–950 ramp

primary

#51DA5B

secondary

#973990

accent

#40DCE8

background

#FCFEFC

surface

#F5FDF4

border

#CFD5CE

text

#0E160C

muted

#7F847F

Preview Lab

Preview with #51DA5B

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

Preview Lab → · Contrast checker → · Palette generator →