#51BB63#51BB63

#51BB63 is a light, vivid green. Relative luminance 0.382; OKLCH L 70.9% C 0.159 H 147.1°. Best body text is #000000 at 8.64:1 contrast (WCAG AA passes).

Color values

HEX	#51BB63
RGB	rgb(81, 187, 99)
HSL	hsl(130, 44%, 53%)
HSV	hsv(130, 57%, 73%)
CMYK	cmyk(56.7%, 0%, 47.1%, 26.7%)
CIE-LAB	lab(68.16, -49.32, 35.46)
CIE-LCH	lch(68.16, 60.74, 144.28°)
OKLab	oklab(70.88% -0.1335 0.0865)
OKLCH	oklch(70.88% 0.159 147.1)
XYZ	xyz(23.4143, 38.1887, 17.9392)
Luminance	0.3819 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51BB63 #BB51A9

analogous

#74BB51 #51BB63 #51BB98

triadic

#51BB63 #6351BB #BB6351

tetradic

#51BB63 #5174BB #BB51A9 #BB9851

square

#51BB63 #5174BB #BB51A9 #BB9851

split-complementary

#51BB63 #9851BB #BB5174

monochromatic

#296934 #3A9549 #51BB63 #7DCC8A #A9DDB2

Accessibility & contrast

On white

2.43

#51BB63 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.64

#51BB63 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51BB63

8.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51BB63	#FFFFFF	#000000	##000000
##51BB63	1.00	2.43	8.64	8.64
#FFFFFF	2.43	1.00	21.00	21.00
#000000	8.64	21.00	1.00	1.00
##000000	8.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BDAC5C

Deuteranopia (green-blind)

#AFA269

Tritanopia (blue-blind)

#3AB7A6

Achromatopsia (no color)

#A6A6A6

Design tokens & code

CSS

--color: #51bb63;
/* rgb */ color: rgb(81, 187, 99);
/* oklch */ color: oklch(70.9% 0.159 147.1);

Tailwind

colors: {
  custom: {
    50: '#8bd091',
    500: '#51bb63',
    950: '#000000',
  },
}

SCSS

$custom: #51bb63;
$custom-light: #8bd091;
$custom-dark: #000000;

JSON

{
  "hex": "#51bb63",
  "rgb": {
    "r": 81,
    "g": 187,
    "b": 99
  },
  "hsl": {
    "h": 130.189,
    "s": 43.802,
    "l": 52.549
  },
  "oklch": {
    "l": 0.70875,
    "c": 0.15909,
    "h": 147.1
  },
  "luminance": 0.38191
}

Semantic roles & 50–950 ramp

primary

#51BB63

secondary

#CB9DC3

accent

#54BED4

background

#F9FCF9

surface

#F1F9F1

border

#CBD2CB

text

#0D140D

muted

#7E827E

Preview Lab

Preview with #51BB63

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

Preview Lab → · Contrast checker → · Palette generator →