#66CB34#66CB34

#66CB34 is a light, highly saturated green. Relative luminance 0.458; OKLCH L 75.2% C 0.206 H 137.5°. Best body text is #000000 at 10.16:1 contrast (WCAG AA passes).

Color values

HEX	#66CB34
RGB	rgb(102, 203, 52)
HSL	hsl(100, 59%, 50%)
HSV	hsv(100, 74%, 80%)
CMYK	cmyk(49.8%, 0%, 74.4%, 20.4%)
CIE-LAB	lab(73.40, -54.85, 62.03)
CIE-LCH	lch(73.40, 82.80, 131.48°)
OKLab	oklab(75.25% -0.1519 0.1392)
OKLCH	oklch(75.25% 0.206 137.5)
XYZ	xyz(27.4544, 45.7826, 10.6384)
Luminance	0.4578 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66CB34 #9934CB

analogous

#B2CB34 #66CB34 #34CB4D

triadic

#66CB34 #3466CB #CB3466

tetradic

#66CB34 #34B2CB #9934CB #CB4D34

square

#66CB34 #34B2CB #9934CB #CB4D34

split-complementary

#66CB34 #4D34CB #CB34B2

monochromatic

#356A1B #4E9A28 #66CB34 #8BD765 #AFE495

Accessibility & contrast

On white

2.07

#66CB34 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

10.16

#66CB34 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66CB34

10.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66CB34	#FFFFFF	#000000	##000000
##66CB34	1.00	2.07	10.16	10.16
#FFFFFF	2.07	1.00	21.00	21.00
#000000	10.16	21.00	1.00	1.00
##000000	10.16	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#D2BA14

Deuteranopia (green-blind)

#C4B144

Tritanopia (blue-blind)

#5FC4AE

Achromatopsia (no color)

#B4B4B4

Design tokens & code

CSS

--color: #66cb34;
/* rgb */ color: rgb(102, 203, 52);
/* oklch */ color: oklch(75.2% 0.206 137.5);

Tailwind

colors: {
  custom: {
    50: '#9bdc76',
    500: '#66cb34',
    950: '#000000',
  },
}

SCSS

$custom: #66cb34;
$custom-light: #9bdc76;
$custom-dark: #000000;

JSON

{
  "hex": "#66cb34",
  "rgb": {
    "r": 102,
    "g": 203,
    "b": 52
  },
  "hsl": {
    "h": 100.132,
    "s": 59.216,
    "l": 50
  },
  "oklch": {
    "l": 0.75249,
    "c": 0.20604,
    "h": 137.5
  },
  "luminance": 0.45785
}

Semantic roles & 50–950 ramp

primary

#66CB34

secondary

#B98CCF

accent

#45E2AE

background

#FAFDF7

surface

#F3FBED

border

#CDD4C8

text

#0F1509

muted

#7F837B

Preview Lab

Preview with #66CB34

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

Preview Lab → · Contrast checker → · Palette generator →