#66D733#66D733

#66D733 is a light, highly saturated green. Relative luminance 0.517; OKLCH L 78.3% C 0.220 H 138.1°. Best body text is #000000 at 11.33:1 contrast (WCAG AA passes).

Color values

HEX	#66D733
RGB	rgb(102, 215, 51)
HSL	hsl(101, 67%, 52%)
HSV	hsv(101, 76%, 84%)
CMYK	cmyk(52.6%, 0%, 76.3%, 15.7%)
CIE-LAB	lab(77.08, -59.35, 65.93)
CIE-LCH	lch(77.08, 88.71, 131.99°)
OKLab	oklab(78.27% -0.1641 0.1472)
OKLCH	oklch(78.27% 0.22 138.1)
XYZ	xyz(30.3764, 51.6623, 11.5024)
Luminance	0.5167 (WCAG relative)
Temperature	warm
Family	green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66D733 #A433D7

analogous

#B8D733 #66D733 #33D752

triadic

#66D733 #3366D7 #D73366

tetradic

#66D733 #33B8D7 #A433D7 #D75233

square

#66D733 #33B8D7 #A433D7 #D75233

split-complementary

#66D733 #5233D7 #D733B8

monochromatic

#367818 #4CAB22 #66D733 #8CE166 #B3EB99

Accessibility & contrast

On white

1.85

#66D733 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

11.33

#66D733 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66D733

11.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66D733	#FFFFFF	#000000	##000000
##66D733	1.00	1.85	11.33	11.33
#FFFFFF	1.85	1.00	21.00	21.00
#000000	11.33	21.00	1.00	1.00
##000000	11.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#DEC405

Deuteranopia (green-blind)

#CFBB45

Tritanopia (blue-blind)

#5DCFB8

Achromatopsia (no color)

#BEBEBE

Design tokens & code

CSS

--color: #66d733;
/* rgb */ color: rgb(102, 215, 51);
/* oklch */ color: oklch(78.3% 0.220 138.1);

Tailwind

colors: {
  custom: {
    50: '#9ce477',
    500: '#66d733',
    950: '#000000',
  },
}

SCSS

$custom: #66d733;
$custom-light: #9ce477;
$custom-dark: #000000;

JSON

{
  "hex": "#66d733",
  "rgb": {
    "r": 102,
    "g": 215,
    "b": 51
  },
  "hsl": {
    "h": 101.341,
    "s": 67.213,
    "l": 52.157
  },
  "oklch": {
    "l": 0.78273,
    "c": 0.22046,
    "h": 138.1
  },
  "luminance": 0.51665
}

Semantic roles & 50–950 ramp

primary

#66D733

secondary

#672E80

accent

#3EEAB4

background

#FCFEFB

surface

#F6FCF1

border

#D0D5CB

text

#0F1609

muted

#80847D

Preview Lab

Preview with #66D733

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

Preview Lab → · Contrast checker → · Palette generator →