#51CB66#51CB66

#51CB66 is a light, vivid green. Relative luminance 0.454; OKLCH L 75.0% C 0.178 H 146.8°. Best body text is #000000 at 10.08:1 contrast (WCAG AA passes).

Color values

HEX	#51CB66
RGB	rgb(81, 203, 102)
HSL	hsl(130, 54%, 56%)
HSV	hsv(130, 60%, 80%)
CMYK	cmyk(60.1%, 0%, 49.8%, 20.4%)
CIE-LAB	lab(73.17, -55.06, 40.23)
CIE-LCH	lch(73.17, 68.19, 143.85°)
OKLab	oklab(75.01% -0.1489 0.0974)
OKLCH	oklch(75.01% 0.178 146.8)
XYZ	xyz(27.1458, 45.4179, 19.9038)
Luminance	0.4542 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51CB66 #CB51B6

analogous

#79CB51 #51CB66 #51CBA3

triadic

#51CB66 #6651CB #CB6651

tetradic

#51CB66 #5179CB #CB51B6 #CBA351

square

#51CB66 #5179CB #CB51B6 #CBA351

split-complementary

#51CB66 #A351CB #CB5179

monochromatic

#257C34 #33AC48 #51CB66 #80D98F #AFE7B9

Accessibility & contrast

On white

2.08

#51CB66 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.08

#51CB66 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51CB66

10.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51CB66	#FFFFFF	#000000	##000000
##51CB66	1.00	2.08	10.08	10.08
#FFFFFF	2.08	1.00	21.00	21.00
#000000	10.08	21.00	1.00	1.00
##000000	10.08	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#CEBA5E

Deuteranopia (green-blind)

#BEAF6D

Tritanopia (blue-blind)

#34C7B4

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #51cb66;
/* rgb */ color: rgb(81, 203, 102);
/* oklch */ color: oklch(75.0% 0.178 146.8);

Tailwind

colors: {
  custom: {
    50: '#8edc93',
    500: '#51cb66',
    950: '#000000',
  },
}

SCSS

$custom: #51cb66;
$custom-light: #8edc93;
$custom-dark: #000000;

JSON

{
  "hex": "#51cb66",
  "rgb": {
    "r": 81,
    "g": 203,
    "b": 102
  },
  "hsl": {
    "h": 130.328,
    "s": 53.982,
    "l": 55.686
  },
  "oklch": {
    "l": 0.75007,
    "c": 0.17791,
    "h": 146.8
  },
  "luminance": 0.45421
}

Semantic roles & 50–950 ramp

primary

#51CB66

secondary

#D5A3CD

accent

#4AC4DD

background

#F9FDF9

surface

#F2FBF1

border

#CCD4CB

text

#0D150D

muted

#7E837E

Preview Lab

Preview with #51CB66

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

Preview Lab → · Contrast checker → · Palette generator →