#51B92B#51B92B

#51B92B is a light, vivid green. Relative luminance 0.366; OKLCH L 69.7% C 0.199 H 139.0°. Best body text is #000000 at 8.32:1 contrast (WCAG AA passes).

Color values

HEX	#51B92B
RGB	rgb(81, 185, 43)
HSL	hsl(104, 62%, 45%)
HSV	hsv(104, 77%, 73%)
CMYK	cmyk(56.2%, 0%, 76.8%, 27.5%)
CIE-LAB	lab(66.99, -54.60, 58.50)
CIE-LCH	lch(66.99, 80.02, 133.02°)
OKLab	oklab(69.74% -0.1505 0.1308)
OKLCH	oklch(69.74% 0.199 139)
XYZ	xyz(21.1775, 36.6199, 8.2374)
Luminance	0.3662 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51B92B #932BB9

analogous

#98B92B #51B92B #2BB94C

triadic

#51B92B #2B51B9 #B92B51

tetradic

#51B92B #2B98B9 #932BB9 #B94C2B

square

#51B92B #2B98B9 #932BB9 #B94C2B

split-complementary

#51B92B #4C2BB9 #B92B98

monochromatic

#265614 #3B871F #51B92B #71D54C #98E17E

Accessibility & contrast

On white

2.52

#51B92B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.32

#51B92B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51B92B

8.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51B92B	#FFFFFF	#000000	##000000
##51B92B	1.00	2.52	8.32	8.32
#FFFFFF	2.52	1.00	21.00	21.00
#000000	8.32	21.00	1.00	1.00
##000000	8.32	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BFA806

Deuteranopia (green-blind)

#B1A03B

Tritanopia (blue-blind)

#46B39E

Achromatopsia (no color)

#A3A3A3

Design tokens & code

CSS

--color: #51b92b;
/* rgb */ color: rgb(81, 185, 43);
/* oklch */ color: oklch(69.7% 0.199 139.0);

Tailwind

colors: {
  custom: {
    50: '#8dcf6f',
    500: '#51b92b',
    950: '#000000',
  },
}

SCSS

$custom: #51b92b;
$custom-light: #8dcf6f;
$custom-dark: #000000;

JSON

{
  "hex": "#51b92b",
  "rgb": {
    "r": 81,
    "g": 185,
    "b": 43
  },
  "hsl": {
    "h": 103.944,
    "s": 62.281,
    "l": 44.706
  },
  "oklch": {
    "l": 0.69738,
    "c": 0.19937,
    "h": 139
  },
  "luminance": 0.36622
}

Semantic roles & 50–950 ramp

primary

#51B92B

secondary

#B376C9

accent

#42E5BA

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0D1408

muted

#7E827B

Preview Lab

Preview with #51B92B

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

Preview Lab → · Contrast checker → · Palette generator →