#66BD34#66BD34

#66BD34 is a light, vivid yellow-green. Relative luminance 0.395; OKLCH L 71.7% C 0.189 H 136.5°. Best body text is #000000 at 8.89:1 contrast (WCAG AA passes).

Color values

HEX	#66BD34
RGB	rgb(102, 189, 52)
HSL	hsl(98, 57%, 47%)
HSV	hsv(98, 72%, 74%)
CMYK	cmyk(46%, 0%, 72.5%, 25.9%)
CIE-LAB	lab(69.09, -49.43, 57.73)
CIE-LCH	lch(69.09, 76.00, 130.57°)
OKLab	oklab(71.7% -0.1373 0.1302)
OKLCH	oklch(71.7% 0.189 136.5)
XYZ	xyz(24.2962, 39.4664, 9.5857)
Luminance	0.3947 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BD34 #8B34BD

analogous

#ABBD34 #66BD34 #34BD47

triadic

#66BD34 #3466BD #BD3466

tetradic

#66BD34 #34ABBD #8B34BD #BD4734

square

#66BD34 #34ABBD #8B34BD #BD4734

split-complementary

#66BD34 #4734BD #BD34AB

monochromatic

#325D1A #4C8D27 #66BD34 #87D25C #AADF8C

Accessibility & contrast

On white

2.36

#66BD34 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.89

#66BD34 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BD34

8.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BD34	#FFFFFF	#000000	##000000
##66BD34	1.00	2.36	8.89	8.89
#FFFFFF	2.36	1.00	21.00	21.00
#000000	8.89	21.00	1.00	1.00
##000000	8.89	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C3AD1B

Deuteranopia (green-blind)

#B8A641

Tritanopia (blue-blind)

#62B6A2

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66bd34;
/* rgb */ color: rgb(102, 189, 52);
/* oklch */ color: oklch(71.7% 0.189 136.5);

Tailwind

colors: {
  custom: {
    50: '#99d174',
    500: '#66bd34',
    950: '#000000',
  },
}

SCSS

$custom: #66bd34;
$custom-light: #99d174;
$custom-dark: #000000;

JSON

{
  "hex": "#66bd34",
  "rgb": {
    "r": 102,
    "g": 189,
    "b": 52
  },
  "hsl": {
    "h": 98.102,
    "s": 56.846,
    "l": 47.255
  },
  "oklch": {
    "l": 0.71701,
    "c": 0.18923,
    "h": 136.5
  },
  "luminance": 0.39468
}

Semantic roles & 50–950 ramp

primary

#66BD34

secondary

#B083CA

accent

#48E0A8

background

#F9FCF7

surface

#F2F9ED

border

#CCD2C8

text

#0F1409

muted

#7E827B

Preview Lab

Preview with #66BD34

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

Preview Lab → · Contrast checker → · Palette generator →