#66CB3A#66CB3A

#66CB3A is a light, highly saturated green. Relative luminance 0.458; OKLCH L 75.3% C 0.203 H 138.0°. Best body text is #000000 at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#66CB3A
RGB	rgb(102, 203, 58)
HSL	hsl(102, 58%, 51%)
HSV	hsv(102, 71%, 80%)
CMYK	cmyk(49.8%, 0%, 71.4%, 20.4%)
CIE-LAB	lab(73.44, -54.43, 59.96)
CIE-LCH	lch(73.44, 80.98, 132.23°)
OKLab	oklab(75.29% -0.1504 0.1357)
OKLCH	oklch(75.29% 0.203 138)
XYZ	xyz(27.5982, 45.8401, 11.3959)
Luminance	0.4584 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB3A #9F3ACB

analogous

#AECB3A #66CB3A #3ACB56

triadic

#66CB3A #3A66CB #CB3A66

tetradic

#66CB3A #3AAECB #9F3ACB #CB563A

square

#66CB3A #3AAECB #9F3ACB #CB563A

split-complementary

#66CB3A #563ACB #CB3AAE

monochromatic

#356E1D #4D9E2A #66CB3A #8CD86A #B1E59B

Accessibility & contrast

On white

2.07

#66CB3A on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.17

#66CB3A on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB3A

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB3A	#FFFFFF	#000000	##000000
##66CB3A	1.00	2.07	10.17	10.17
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.17	21.00	1.00	1.00
##000000	10.17	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA21

Deuteranopia (green-blind)

#C4B148

Tritanopia (blue-blind)

#5FC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb3a;
/* rgb */ color: rgb(102, 203, 58);
/* oklch */ color: oklch(75.3% 0.203 138.0);

Tailwind

colors: {
  custom: {
    50: '#9adc79',
    500: '#66cb3a',
    950: '#000000',
  },
}

SCSS

$custom: #66cb3a;
$custom-light: #9adc79;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb3a",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 58
  },
  "hsl": {
    "h": 101.793,
    "s": 58.233,
    "l": 51.176
  },
  "oklch": {
    "l": 0.75292,
    "c": 0.20257,
    "h": 138
  },
  "luminance": 0.45842
}

Semantic roles & 50–950 ramp

primary

#66CB3A

secondary

#BD90D0

accent

#46E1B2

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CB3A

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

Preview Lab → · Contrast checker → · Palette generator →