#51C03B#51C03B

#51C03B is a light, vivid green. Relative luminance 0.398; OKLCH L 71.7% C 0.198 H 140.6°. Best body text is #000000 at 8.95:1 contrast (WCAG AA passes).

Color values

HEX	#51C03B
RGB	rgb(81, 192, 59)
HSL	hsl(110, 53%, 49%)
HSV	hsv(110, 69%, 75%)
CMYK	cmyk(57.8%, 0%, 69.3%, 24.7%)
CIE-LAB	lab(69.30, -55.95, 55.07)
CIE-LCH	lch(69.30, 78.51, 135.46°)
OKLab	oklab(71.68% -0.1532 0.1258)
OKLCH	oklch(71.68% 0.198 140.6)
XYZ	xyz(23.0313, 39.7623, 10.5980)
Luminance	0.3976 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C03B #AA3BC0

analogous

#94C03B #51C03B #3BC068

triadic

#51C03B #3B51C0 #C03B51

tetradic

#51C03B #3B94C0 #AA3BC0 #C0683B

square

#51C03B #3B94C0 #AA3BC0 #C0683B

split-complementary

#51C03B #683BC0 #C03B94

monochromatic

#2A621E #3D912D #51C03B #79D168 #A2DF97

Accessibility & contrast

On white

2.35

#51C03B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.95

#51C03B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C03B

8.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C03B	#FFFFFF	#000000	##000000
##51C03B	1.00	2.35	8.95	8.95
#FFFFFF	2.35	1.00	21.00	21.00
#000000	8.95	21.00	1.00	1.00
##000000	8.95	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AF27

Deuteranopia (green-blind)

#B7A648

Tritanopia (blue-blind)

#42BAA5

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #51c03b;
/* rgb */ color: rgb(81, 192, 59);
/* oklch */ color: oklch(71.7% 0.198 140.6);

Tailwind

colors: {
  custom: {
    50: '#8dd478',
    500: '#51c03b',
    950: '#000000',
  },
}

SCSS

$custom: #51c03b;
$custom-light: #8dd478;
$custom-dark: #000000;

JSON

{
  "hex": "#51c03b",
  "rgb": {
    "r": 81,
    "g": 192,
    "b": 59
  },
  "hsl": {
    "h": 110.075,
    "s": 52.988,
    "l": 49.216
  },
  "oklch": {
    "l": 0.71677,
    "c": 0.19821,
    "h": 140.6
  },
  "luminance": 0.39764
}

Semantic roles & 50–950 ramp

primary

#51C03B

secondary

#C08CCA

accent

#4BDCC4

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0D1409

muted

#7E837B

Preview Lab

Preview with #51C03B

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

Preview Lab → · Contrast checker → · Palette generator →