#66C13B#66C13B

#66C13B is a light, vivid green. Relative luminance 0.413; OKLCH L 72.8% C 0.190 H 137.4°. Best body text is #000000 at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#66C13B
RGB	rgb(102, 193, 59)
HSL	hsl(101, 53%, 49%)
HSV	hsv(101, 69%, 76%)
CMYK	cmyk(47.2%, 0%, 69.4%, 24.3%)
CIE-LAB	lab(70.37, -50.49, 56.42)
CIE-LCH	lch(70.37, 75.72, 131.82°)
OKLab	oklab(72.77% -0.1397 0.1284)
OKLCH	oklch(72.77% 0.19 137.4)
XYZ	xyz(25.3381, 41.2788, 10.7693)
Luminance	0.4128 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66C13B #963BC1

analogous

#A9C13B #66C13B #3BC153

triadic

#66C13B #3B66C1 #C13B66

tetradic

#66C13B #3BA9C1 #963BC1 #C1533B

square

#66C13B #3BA9C1 #963BC1 #C1533B

split-complementary

#66C13B #533BC1 #C13BA9

monochromatic

#34631E #4D922D #66C13B #8AD168 #AEDF97

Accessibility & contrast

On white

2.27

#66C13B on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.26

#66C13B on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66C13B

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66C13B	#FFFFFF	#000000	##000000
##66C13B	1.00	2.27	9.26	9.26
#FFFFFF	2.27	1.00	21.00	21.00
#000000	9.26	21.00	1.00	1.00
##000000	9.26	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C7B127

Deuteranopia (green-blind)

#BBA947

Tritanopia (blue-blind)

#60BAA6

Achromatopsia (no color)

#ACACAC

Design tokens & code

CSS

--color: #66c13b;
/* rgb */ color: rgb(102, 193, 59);
/* oklch */ color: oklch(72.8% 0.190 137.4);

Tailwind

colors: {
  custom: {
    50: '#99d478',
    500: '#66c13b',
    950: '#000000',
  },
}

SCSS

$custom: #66c13b;
$custom-light: #99d478;
$custom-dark: #000000;

JSON

{
  "hex": "#66c13b",
  "rgb": {
    "r": 102,
    "g": 193,
    "b": 59
  },
  "hsl": {
    "h": 100.746,
    "s": 53.175,
    "l": 49.412
  },
  "oklch": {
    "l": 0.7277,
    "c": 0.18975,
    "h": 137.4
  },
  "luminance": 0.4128
}

Semantic roles & 50–950 ramp

primary

#66C13B

secondary

#B78DCB

accent

#4BDDAE

background

#F9FDF7

surface

#F2FAEE

border

#CCD3C9

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66C13B

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

Preview Lab → · Contrast checker → · Palette generator →