#66D633#66D633

#66D633 is a light, highly saturated green. Relative luminance 0.512; OKLCH L 78.0% C 0.219 H 138.1°. Best body text is #000000 at 11.23:1 contrast (WCAG AA passes).

Color values

HEX	#66D633
RGB	rgb(102, 214, 51)
HSL	hsl(101, 67%, 52%)
HSV	hsv(101, 76%, 84%)
CMYK	cmyk(52.3%, 0%, 76.2%, 16.1%)
CIE-LAB	lab(76.77, -58.99, 65.64)
CIE-LCH	lch(76.77, 88.25, 131.94°)
OKLab	oklab(78.02% -0.1631 0.1466)
OKLCH	oklch(78.02% 0.219 138.1)
XYZ	xyz(30.1225, 51.1546, 11.4178)
Luminance	0.5116 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D633 #A333D6

analogous

#B8D633 #66D633 #33D652

triadic

#66D633 #3366D6 #D63366

tetradic

#66D633 #33B8D6 #A333D6 #D65233

square

#66D633 #33B8D6 #A333D6 #D65233

split-complementary

#66D633 #5233D6 #D633B8

monochromatic

#367718 #4DAA22 #66D633 #8CE066 #B2EA99

Accessibility & contrast

On white

1.87

#66D633 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.23

#66D633 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D633

11.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D633	#FFFFFF	#000000	##000000
##66D633	1.00	1.87	11.23	11.23
#FFFFFF	1.87	1.00	21.00	21.00
#000000	11.23	21.00	1.00	1.00
##000000	11.23	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DDC306

Deuteranopia (green-blind)

#CEBA45

Tritanopia (blue-blind)

#5DCEB7

Achromatopsia (no color)

#BDBDBD

Design tokens & code

CSS

--color: #66d633;
/* rgb */ color: rgb(102, 214, 51);
/* oklch */ color: oklch(78.0% 0.219 138.1);

Tailwind

colors: {
  custom: {
    50: '#9ce377',
    500: '#66d633',
    950: '#000000',
  },
}

SCSS

$custom: #66d633;
$custom-light: #9ce377;
$custom-dark: #000000;

JSON

{
  "hex": "#66d633",
  "rgb": {
    "r": 102,
    "g": 214,
    "b": 51
  },
  "hsl": {
    "h": 101.227,
    "s": 66.531,
    "l": 51.961
  },
  "oklch": {
    "l": 0.78021,
    "c": 0.21931,
    "h": 138.1
  },
  "luminance": 0.51157
}

Semantic roles & 50–950 ramp

primary

#66D633

secondary

#662E7F

accent

#3EE9B4

background

#FCFEFB

surface

#F6FCF1

border

#D0D5CB

text

#0F1609

muted

#80847D

Preview Lab

Preview with #66D633

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

Preview Lab → · Contrast checker → · Palette generator →