#51C166#51C166

#51C166 is a light, vivid green. Relative luminance 0.408; OKLCH L 72.5% C 0.165 H 147.4°. Best body text is #000000 at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#51C166
RGB	rgb(81, 193, 102)
HSL	hsl(131, 47%, 54%)
HSV	hsv(131, 58%, 76%)
CMYK	cmyk(58%, 0%, 47.2%, 24.3%)
CIE-LAB	lab(70.07, -51.22, 36.35)
CIE-LCH	lch(70.07, 62.81, 144.64°)
OKLab	oklab(72.46% -0.1386 0.0887)
OKLCH	oklch(72.46% 0.165 147.4)
XYZ	xyz(24.8599, 40.8463, 19.1418)
Luminance	0.4085 (WCAG relative)
Temperature	neutral
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#51C166 #C151AC

analogous

#74C151 #51C166 #51C19E

triadic

#51C166 #6651C1 #C16651

tetradic

#51C166 #5174C1 #C151AC #C19E51

square

#51C166 #5174C1 #C151AC #C19E51

split-complementary

#51C166 #9E51C1 #C15174

monochromatic

#287035 #389D4B #51C166 #7ED18E #ABE1B5

Accessibility & contrast

On white

2.29

#51C166 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.17

#51C166 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #51C166

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##51C166	#FFFFFF	#000000	##000000
##51C166	1.00	2.29	9.17	9.17
#FFFFFF	2.29	1.00	21.00	21.00
#000000	9.17	21.00	1.00	1.00
##000000	9.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3B15F

Deuteranopia (green-blind)

#B4A76C

Tritanopia (blue-blind)

#37BDAB

Achromatopsia (no color)

#ABABAB

Design tokens & code

CSS

--color: #51c166;
/* rgb */ color: rgb(81, 193, 102);
/* oklch */ color: oklch(72.5% 0.165 147.4);

Tailwind

colors: {
  custom: {
    50: '#8cd593',
    500: '#51c166',
    950: '#000000',
  },
}

SCSS

$custom: #51c166;
$custom-light: #8cd593;
$custom-dark: #000000;

JSON

{
  "hex": "#51c166",
  "rgb": {
    "r": 81,
    "g": 193,
    "b": 102
  },
  "hsl": {
    "h": 131.25,
    "s": 47.458,
    "l": 53.725
  },
  "oklch": {
    "l": 0.72457,
    "c": 0.16451,
    "h": 147.4
  },
  "luminance": 0.40849
}

Semantic roles & 50–950 ramp

primary

#51C166

secondary

#CF9FC6

accent

#51BED7

background

#F9FDF9

surface

#F1FAF1

border

#CBD3CB

text

#0D140D

muted

#7E837E

Preview Lab

Preview with #51C166

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

Preview Lab → · Contrast checker → · Palette generator →