#66CB3D#66CB3D

#66CB3D is a light, highly saturated green. Relative luminance 0.459; OKLCH L 75.3% C 0.201 H 138.2°. Best body text is #000000 at 10.17:1 contrast (WCAG AA passes).

Color values

HEX	#66CB3D
RGB	rgb(102, 203, 61)
HSL	hsl(103, 58%, 52%)
HSV	hsv(103, 70%, 80%)
CMYK	cmyk(49.8%, 0%, 70%, 20.4%)
CIE-LAB	lab(73.46, -54.21, 58.87)
CIE-LCH	lch(73.46, 80.02, 132.64°)
OKLab	oklab(75.32% -0.1496 0.1338)
OKLCH	oklch(75.32% 0.201 138.2)
XYZ	xyz(27.6768, 45.8716, 11.8097)
Luminance	0.4587 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB3D #A23DCB

analogous

#ADCB3D #66CB3D #3DCB5B

triadic

#66CB3D #3D66CB #CB3D66

tetradic

#66CB3D #3DADCB #A23DCB #CB5B3D

square

#66CB3D #3DADCB #A23DCB #CB5B3D

split-complementary

#66CB3D #5B3DCB #CB3DAD

monochromatic

#36701E #4DA02B #66CB3D #8CD86D #B2E59E

Accessibility & contrast

On white

2.06

#66CB3D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.17

#66CB3D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB3D

10.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB3D	#FFFFFF	#000000	##000000
##66CB3D	1.00	2.06	10.17	10.17
#FFFFFF	2.06	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)

#D1BA27

Deuteranopia (green-blind)

#C4B14A

Tritanopia (blue-blind)

#5EC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb3d;
/* rgb */ color: rgb(102, 203, 61);
/* oklch */ color: oklch(75.3% 0.201 138.2);

Tailwind

colors: {
  custom: {
    50: '#9adc7a',
    500: '#66cb3d',
    950: '#000000',
  },
}

SCSS

$custom: #66cb3d;
$custom-light: #9adc7a;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb3d",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 61
  },
  "hsl": {
    "h": 102.676,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.75315,
    "c": 0.20071,
    "h": 138.2
  },
  "luminance": 0.45874
}

Semantic roles & 50–950 ramp

primary

#66CB3D

secondary

#BF93D1

accent

#47E1B4

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CB3D

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

Preview Lab → · Contrast checker → · Palette generator →