#66CB41#66CB41

#66CB41 is a light, vivid green. Relative luminance 0.459; OKLCH L 75.3% C 0.198 H 138.6°. Best body text is #000000 at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#66CB41
RGB	rgb(102, 203, 65)
HSL	hsl(104, 57%, 53%)
HSV	hsv(104, 68%, 80%)
CMYK	cmyk(49.8%, 0%, 68%, 20.4%)
CIE-LAB	lab(73.49, -53.88, 57.36)
CIE-LCH	lch(73.49, 78.70, 133.21°)
OKLab	oklab(75.35% -0.1485 0.1311)
OKLCH	oklch(75.35% 0.198 138.6)
XYZ	xyz(27.7886, 45.9163, 12.3984)
Luminance	0.4592 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB41 #A641CB

analogous

#ABCB41 #66CB41 #41CB61

triadic

#66CB41 #4166CB #CB4166

tetradic

#66CB41 #41ABCB #A641CB #CB6141

square

#66CB41 #41ABCB #A641CB #CB6141

split-complementary

#66CB41 #6141CB #CB41AB

monochromatic

#36721F #4CA22C #66CB41 #8DD871 #B3E5A1

Accessibility & contrast

On white

2.06

#66CB41 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.18

#66CB41 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB41

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB41	#FFFFFF	#000000	##000000
##66CB41	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)

#D1BA2D

Deuteranopia (green-blind)

#C4B14E

Tritanopia (blue-blind)

#5EC4AF

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb41;
/* rgb */ color: rgb(102, 203, 65);
/* oklch */ color: oklch(75.3% 0.198 138.6);

Tailwind

colors: {
  custom: {
    50: '#9adc7d',
    500: '#66cb41',
    950: '#000000',
  },
}

SCSS

$custom: #66cb41;
$custom-light: #9adc7d;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb41",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 65
  },
  "hsl": {
    "h": 103.913,
    "s": 57.025,
    "l": 52.549
  },
  "oklch": {
    "l": 0.75348,
    "c": 0.1981,
    "h": 138.6
  },
  "luminance": 0.45918
}

Semantic roles & 50–950 ramp

primary

#66CB41

secondary

#C296D2

accent

#48E0B7

background

#FAFDF7

surface

#F3FBEE

border

#CDD4C9

text

#0F150A

muted

#7F837C

Preview Lab

Preview with #66CB41

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

Preview Lab → · Contrast checker → · Palette generator →