#51CA81#51CA81

#51CA81 is a light, vivid green. Relative luminance 0.456; OKLCH L 75.2% C 0.152 H 153.9°. Best body text is #000000 at 10.12:1 contrast (WCAG AA passes).

Color values

HEX	#51CA81
RGB	rgb(81, 202, 129)
HSL	hsl(144, 53%, 55%)
HSV	hsv(144, 60%, 79%)
CMYK	cmyk(59.9%, 0%, 36.1%, 20.8%)
CIE-LAB	lab(73.27, -50.21, 26.63)
CIE-LCH	lch(73.27, 56.84, 152.06°)
OKLab	oklab(75.22% -0.1361 0.0668)
OKLCH	oklch(75.22% 0.152 153.9)
XYZ	xyz(28.4740, 45.5726, 28.0605)
Luminance	0.4557 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CA81 #CA519A

analogous

#5DCA51 #51CA81 #51CABE

triadic

#51CA81 #8151CA #CA8151

tetradic

#51CA81 #515DCA #CA519A #CABE51

square

#51CA81 #515DCA #CA519A #CABE51

split-complementary

#51CA81 #BE51CA #CA515D

monochromatic

#257B47 #34AA63 #51CA81 #80D8A3 #AFE7C5

Accessibility & contrast

On white

2.08

#51CA81 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.12

#51CA81 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CA81

10.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CA81	#FFFFFF	#000000	##000000
##51CA81	1.00	2.08	10.12	10.12
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.12	21.00	1.00	1.00
##000000	10.12	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CABB7C

Deuteranopia (green-blind)

#BAAF86

Tritanopia (blue-blind)

#25C8B7

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51ca81;
/* rgb */ color: rgb(81, 202, 129);
/* oklch */ color: oklch(75.2% 0.152 153.9);

Tailwind

colors: {
  custom: {
    50: '#8ddba6',
    500: '#51ca81',
    950: '#000000',
  },
}

SCSS

$custom: #51ca81;
$custom-light: #8ddba6;
$custom-dark: #000000;

JSON

{
  "hex": "#51ca81",
  "rgb": {
    "r": 81,
    "g": 202,
    "b": 129
  },
  "hsl": {
    "h": 143.802,
    "s": 53.304,
    "l": 55.49
  },
  "oklch": {
    "l": 0.75223,
    "c": 0.15162,
    "h": 153.9
  },
  "luminance": 0.45575
}

Semantic roles & 50–950 ramp

primary

#51CA81

secondary

#D5A2C1

accent

#4BA3DD

background

#F9FDFA

surface

#F1FBF4

border

#CBD4CE

text

#0D150F

muted

#7E837F

Preview Lab

Preview with #51CA81

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

Preview Lab → · Contrast checker → · Palette generator →