#51F291#51F291

#51F291 is a very light, vivid green. Relative luminance 0.673; OKLCH L 85.5% C 0.190 H 152.9°. Best body text is #000000 at 14.46:1 contrast (WCAG AA passes).

Color values

HEX	#51F291
RGB	rgb(81, 242, 145)
HSL	hsl(144, 86%, 63%)
HSV	hsv(144, 67%, 95%)
CMYK	cmyk(66.5%, 0%, 40.1%, 5.1%)
CIE-LAB	lab(85.65, -62.67, 34.88)
CIE-LCH	lch(85.65, 71.73, 150.90°)
OKLab	oklab(85.49% -0.1692 0.0866)
OKLCH	oklch(85.49% 0.19 152.9)
XYZ	xyz(40.2529, 67.2936, 37.6502)
Luminance	0.6730 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51F291 #F251B2

analogous

#61F251 #51F291 #51F2E1

triadic

#51F291 #9151F2 #F29151

tetradic

#51F291 #5161F2 #F251B2 #F2E151

square

#51F291 #5161F2 #F251B2 #F2E151

split-complementary

#51F291 #E151F2 #F25161

monochromatic

#0EBB53 #18EE6D #51F291 #8AF6B5 #C3FBD9

Accessibility & contrast

On white

1.45

#51F291 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

14.46

#51F291 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51F291

14.46:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51F291	#FFFFFF	#000000	##000000
##51F291	1.00	1.45	14.46	14.46
#FFFFFF	1.45	1.00	21.00	21.00
#000000	14.46	21.00	1.00	1.00
##000000	14.46	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#F2DF8A

Deuteranopia (green-blind)

#DED097

Tritanopia (blue-blind)

#00EFDA

Achromatopsia (no color)

#D6D6D6

Design tokens & code

CSS

--color: #51f291;
/* rgb */ color: rgb(81, 242, 145);
/* oklch */ color: oklch(85.5% 0.190 152.9);

Tailwind

colors: {
  custom: {
    50: '#93f7b2',
    500: '#51f291',
    950: '#000000',
  },
}

SCSS

$custom: #51f291;
$custom-light: #93f7b2;
$custom-dark: #000000;

JSON

{
  "hex": "#51f291",
  "rgb": {
    "r": 81,
    "g": 242,
    "b": 145
  },
  "hsl": {
    "h": 143.851,
    "s": 86.096,
    "l": 63.333
  },
  "oklch": {
    "l": 0.85491,
    "c": 0.19007,
    "h": 152.9
  },
  "luminance": 0.67298
}

Semantic roles & 50–950 ramp

primary

#51F291

secondary

#B92E82

accent

#038AE3

background

#FCFFFD

surface

#F5FFF8

border

#CFD7D1

text

#0F1711

muted

#808581

Preview Lab

Preview with #51F291

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

Preview Lab → · Contrast checker → · Palette generator →