#51C22B#51C22B

#51C22B is a light, highly saturated green. Relative luminance 0.405; OKLCH L 72.1% C 0.210 H 139.4°. Best body text is #000000 at 9.10:1 contrast (WCAG AA passes).

Color values

HEX	#51C22B
RGB	rgb(81, 194, 43)
HSL	hsl(105, 64%, 46%)
HSV	hsv(105, 78%, 76%)
CMYK	cmyk(58.2%, 0%, 77.8%, 23.9%)
CIE-LAB	lab(69.83, -57.83, 61.23)
CIE-LCH	lch(69.83, 84.22, 133.36°)
OKLab	oklab(72.08% -0.1592 0.1365)
OKLCH	oklch(72.08% 0.21 139.4)
XYZ	xyz(23.1202, 40.5053, 8.8850)
Luminance	0.4051 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C22B #9C2BC2

analogous

#9DC22B #51C22B #2BC251

triadic

#51C22B #2B51C2 #C22B51

tetradic

#51C22B #2B9DC2 #9C2BC2 #C2512B

square

#51C22B #2B9DC2 #9C2BC2 #C2512B

split-complementary

#51C22B #512BC2 #C22B9D

monochromatic

#275E15 #3C9020 #51C22B #74D952 #9CE484

Accessibility & contrast

On white

2.31

#51C22B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.10

#51C22B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C22B

9.10:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C22B	#FFFFFF	#000000	##000000
##51C22B	1.00	2.31	9.10	9.10
#FFFFFF	2.31	1.00	21.00	21.00
#000000	9.10	21.00	1.00	1.00
##000000	9.10	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C8B000

Deuteranopia (green-blind)

#BAA73C

Tritanopia (blue-blind)

#44BBA6

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51c22b;
/* rgb */ color: rgb(81, 194, 43);
/* oklch */ color: oklch(72.1% 0.210 139.4);

Tailwind

colors: {
  custom: {
    50: '#8ed570',
    500: '#51c22b',
    950: '#000000',
  },
}

SCSS

$custom: #51c22b;
$custom-light: #8ed570;
$custom-dark: #000000;

JSON

{
  "hex": "#51c22b",
  "rgb": {
    "r": 81,
    "g": 194,
    "b": 43
  },
  "hsl": {
    "h": 104.901,
    "s": 63.713,
    "l": 46.471
  },
  "oklch": {
    "l": 0.72081,
    "c": 0.20967,
    "h": 139.4
  },
  "luminance": 0.40507
}

Semantic roles & 50–950 ramp

primary

#51C22B

secondary

#B87CCD

accent

#41E7BD

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0E1408

muted

#7E837B

Preview Lab

Preview with #51C22B

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

Preview Lab → · Contrast checker → · Palette generator →