#51D943#51D943

#51D943 is a light, highly saturated green. Relative luminance 0.518; OKLCH L 78.2% C 0.222 H 141.8°. Best body text is #000000 at 11.36:1 contrast (WCAG AA passes).

Color values

HEX	#51D943
RGB	rgb(81, 217, 67)
HSL	hsl(114, 66%, 56%)
HSV	hsv(114, 69%, 85%)
CMYK	cmyk(62.7%, 0%, 69.1%, 14.9%)
CIE-LAB	lab(77.15, -64.05, 60.23)
CIE-LCH	lch(77.15, 87.92, 136.76°)
OKLab	oklab(78.18% -0.1747 0.1375)
OKLCH	oklch(78.18% 0.222 141.8)
XYZ	xyz(29.2178, 51.7774, 13.7634)
Luminance	0.5178 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51D943 #CB43D9

analogous

#9CD943 #51D943 #43D980

triadic

#51D943 #4351D9 #D94351

tetradic

#51D943 #439CD9 #CB43D9 #D98043

square

#51D943 #439CD9 #CB43D9 #D98043

split-complementary

#51D943 #8043D9 #D9439C

monochromatic

#25861B #33B925 #51D943 #80E376 #AFEEA9

Accessibility & contrast

On white

1.85

#51D943 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.36

#51D943 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51D943

11.36:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51D943	#FFFFFF	#000000	##000000
##51D943	1.00	1.85	11.36	11.36
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.36	21.00	1.00	1.00
##000000	11.36	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC52C

Deuteranopia (green-blind)

#CEBA51

Tritanopia (blue-blind)

#38D2BB

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #51d943;
/* rgb */ color: rgb(81, 217, 67);
/* oklch */ color: oklch(78.2% 0.222 141.8);

Tailwind

colors: {
  custom: {
    50: '#91e67f',
    500: '#51d943',
    950: '#000000',
  },
}

SCSS

$custom: #51d943;
$custom-light: #91e67f;
$custom-dark: #000000;

JSON

{
  "hex": "#51d943",
  "rgb": {
    "r": 81,
    "g": 217,
    "b": 67
  },
  "hsl": {
    "h": 114.4,
    "s": 66.372,
    "l": 55.686
  },
  "oklch": {
    "l": 0.78181,
    "c": 0.22232,
    "h": 141.8
  },
  "luminance": 0.5178
}

Semantic roles & 50–950 ramp

primary

#51D943

secondary

#84338D

accent

#3FE9D9

background

#FCFEFB

surface

#F5FCF2

border

#CFD5CC

text

#0E160B

muted

#7F847E

Preview Lab

Preview with #51D943

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

Preview Lab → · Contrast checker → · Palette generator →