#51C577#51C577

#51C577 is a light, vivid green. Relative luminance 0.430; OKLCH L 73.8% C 0.154 H 151.5°. Best body text is #000000 at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#51C577
RGB	rgb(81, 197, 119)
HSL	hsl(140, 50%, 55%)
HSV	hsv(140, 59%, 77%)
CMYK	cmyk(58.9%, 0%, 39.6%, 22.7%)
CIE-LAB	lab(71.56, -50.01, 29.58)
CIE-LCH	lch(71.56, 58.11, 149.40°)
OKLab	oklab(73.77% -0.1354 0.0736)
OKLCH	oklch(73.77% 0.154 151.5)
XYZ	xyz(26.6873, 43.0112, 24.3448)
Luminance	0.4301 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C577 #C5519F

analogous

#65C551 #51C577 #51C5B1

triadic

#51C577 #7751C5 #C57751

tetradic

#51C577 #5165C5 #C5519F #C5B151

square

#51C577 #5165C5 #C5519F #C5B151

split-complementary

#51C577 #B151C5 #C55165

monochromatic

#277540 #36A35A #51C577 #7FD49B #ADE4BF

Accessibility & contrast

On white

2.19

#51C577 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.60

#51C577 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C577

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C577	#FFFFFF	#000000	##000000
##51C577	1.00	2.19	9.60	9.60
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.60	21.00	1.00	1.00
##000000	9.60	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6B672

Deuteranopia (green-blind)

#B6AB7C

Tritanopia (blue-blind)

#2EC2B2

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51c577;
/* rgb */ color: rgb(81, 197, 119);
/* oklch */ color: oklch(73.8% 0.154 151.5);

Tailwind

colors: {
  custom: {
    50: '#8cd79f',
    500: '#51c577',
    950: '#000000',
  },
}

SCSS

$custom: #51c577;
$custom-light: #8cd79f;
$custom-dark: #000000;

JSON

{
  "hex": "#51c577",
  "rgb": {
    "r": 81,
    "g": 197,
    "b": 119
  },
  "hsl": {
    "h": 139.655,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.73769,
    "c": 0.15407,
    "h": 151.5
  },
  "luminance": 0.43014
}

Semantic roles & 50–950 ramp

primary

#51C577

secondary

#D1A0C1

accent

#4EACDA

background

#F9FDF9

surface

#F1FAF2

border

#CBD3CC

text

#0D140E

muted

#7E837E

Preview Lab

Preview with #51C577

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

Preview Lab → · Contrast checker → · Palette generator →