#66CB3E#66CB3E

#66CB3E is a light, highly saturated green. Relative luminance 0.459; OKLCH L 75.3% C 0.200 H 138.3°. Best body text is #000000 at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#66CB3E
RGB	rgb(102, 203, 62)
HSL	hsl(103, 58%, 52%)
HSV	hsv(103, 69%, 80%)
CMYK	cmyk(49.8%, 0%, 69.5%, 20.4%)
CIE-LAB	lab(73.47, -54.13, 58.49)
CIE-LCH	lch(73.47, 79.69, 132.78°)
OKLab	oklab(75.32% -0.1494 0.1331)
OKLCH	oklch(75.32% 0.2 138.3)
XYZ	xyz(27.7039, 45.8824, 11.9528)
Luminance	0.4588 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB3E #A33ECB

analogous

#ACCB3E #66CB3E #3ECB5D

triadic

#66CB3E #3E66CB #CB3E66

tetradic

#66CB3E #3EACCB #A33ECB #CB5D3E

square

#66CB3E #3EACCB #A33ECB #CB5D3E

split-complementary

#66CB3E #5D3ECB #CB3EAC

monochromatic

#36701E #4DA12B #66CB3E #8CD86E #B2E59E

Accessibility & contrast

On white

2.06

#66CB3E on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.18

#66CB3E on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB3E

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB3E	#FFFFFF	#000000	##000000
##66CB3E	1.00	2.06	10.18	10.18
#FFFFFF	2.06	1.00	21.00	21.00
#000000	10.18	21.00	1.00	1.00
##000000	10.18	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D1BA28

Deuteranopia (green-blind)

#C4B14B

Tritanopia (blue-blind)

#5EC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb3e;
/* rgb */ color: rgb(102, 203, 62);
/* oklch */ color: oklch(75.3% 0.200 138.3);

Tailwind

colors: {
  custom: {
    50: '#9adc7b',
    500: '#66cb3e',
    950: '#000000',
  },
}

SCSS

$custom: #66cb3e;
$custom-light: #9adc7b;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb3e",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 62
  },
  "hsl": {
    "h": 102.979,
    "s": 57.551,
    "l": 51.961
  },
  "oklch": {
    "l": 0.75323,
    "c": 0.20007,
    "h": 138.3
  },
  "luminance": 0.45884
}

Semantic roles & 50–950 ramp

primary

#66CB3E

secondary

#C094D1

accent

#47E1B5

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CB3E

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

Preview Lab → · Contrast checker → · Palette generator →