#51C573#51C573

#51C573 is a light, vivid green. Relative luminance 0.429; OKLCH L 73.7% C 0.158 H 150.3°. Best body text is #000000 at 9.58:1 contrast (WCAG AA passes).

Color values

HEX	#51C573
RGB	rgb(81, 197, 115)
HSL	hsl(138, 50%, 55%)
HSV	hsv(138, 59%, 77%)
CMYK	cmyk(58.9%, 0%, 41.6%, 22.7%)
CIE-LAB	lab(71.50, -50.70, 31.57)
CIE-LCH	lch(71.50, 59.73, 148.10°)
OKLab	oklab(73.7% -0.1371 0.0781)
OKLCH	oklch(73.7% 0.158 150.3)
XYZ	xyz(26.4522, 42.9171, 23.1062)
Luminance	0.4292 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C573 #C551A3

analogous

#69C551 #51C573 #51C5AD

triadic

#51C573 #7351C5 #C57351

tetradic

#51C573 #5169C5 #C551A3 #C5AD51

square

#51C573 #5169C5 #C551A3 #C5AD51

split-complementary

#51C573 #AD51C5 #C55169

monochromatic

#27753E #36A356 #51C573 #7FD498 #ADE4BD

Accessibility & contrast

On white

2.19

#51C573 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.58

#51C573 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C573

9.58:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C573	#FFFFFF	#000000	##000000
##51C573	1.00	2.19	9.58	9.58
#FFFFFF	2.19	1.00	21.00	21.00
#000000	9.58	21.00	1.00	1.00
##000000	9.58	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6B66D

Deuteranopia (green-blind)

#B7AB78

Tritanopia (blue-blind)

#30C2B1

Achromatopsia (no color)

#AFAFAF

Design tokens & code

CSS

--color: #51c573;
/* rgb */ color: rgb(81, 197, 115);
/* oklch */ color: oklch(73.7% 0.158 150.3);

Tailwind

colors: {
  custom: {
    50: '#8cd79c',
    500: '#51c573',
    950: '#000000',
  },
}

SCSS

$custom: #51c573;
$custom-light: #8cd79c;
$custom-dark: #000000;

JSON

{
  "hex": "#51c573",
  "rgb": {
    "r": 81,
    "g": 197,
    "b": 115
  },
  "hsl": {
    "h": 137.586,
    "s": 50,
    "l": 54.51
  },
  "oklch": {
    "l": 0.73696,
    "c": 0.15783,
    "h": 150.3
  },
  "luminance": 0.4292
}

Semantic roles & 50–950 ramp

primary

#51C573

secondary

#D1A0C3

accent

#4EB1DA

background

#F9FDF9

surface

#F1FAF2

border

#CBD3CC

text

#0D140E

muted

#7E837E

Preview Lab

Preview with #51C573

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

Preview Lab → · Contrast checker → · Palette generator →