#66BF33#66BF33

#66BF33 is a light, vivid yellow-green. Relative luminance 0.403; OKLCH L 72.2% C 0.192 H 136.6°. Best body text is #000000 at 9.07:1 contrast (WCAG AA passes).

Color values

HEX	#66BF33
RGB	rgb(102, 191, 51)
HSL	hsl(98, 58%, 47%)
HSV	hsv(98, 73%, 75%)
CMYK	cmyk(46.6%, 0%, 73.3%, 25.1%)
CIE-LAB	lab(69.70, -50.29, 58.70)
CIE-LCH	lch(69.70, 77.30, 130.59°)
OKLab	oklab(72.2% -0.1397 0.1321)
OKLCH	oklch(72.2% 0.192 136.6)
XYZ	xyz(24.7071, 40.3238, 9.6127)
Luminance	0.4032 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BF33 #8C33BF

analogous

#ACBF33 #66BF33 #33BF46

triadic

#66BF33 #3366BF #BF3366

tetradic

#66BF33 #33ACBF #8C33BF #BF4633

square

#66BF33 #33ACBF #8C33BF #BF4633

split-complementary

#66BF33 #4633BF #BF33AC

monochromatic

#325E19 #4C8F26 #66BF33 #87D35C #ABE08C

Accessibility & contrast

On white

2.32

#66BF33 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

9.07

#66BF33 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BF33

9.07:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BF33	#FFFFFF	#000000	##000000
##66BF33	1.00	2.32	9.07	9.07
#FFFFFF	2.32	1.00	21.00	21.00
#000000	9.07	21.00	1.00	1.00
##000000	9.07	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C6AF18

Deuteranopia (green-blind)

#BAA841

Tritanopia (blue-blind)

#62B8A4

Achromatopsia (no color)

#AAAAAA

Design tokens & code

CSS

--color: #66bf33;
/* rgb */ color: rgb(102, 191, 51);
/* oklch */ color: oklch(72.2% 0.192 136.6);

Tailwind

colors: {
  custom: {
    50: '#99d374',
    500: '#66bf33',
    950: '#000000',
  },
}

SCSS

$custom: #66bf33;
$custom-light: #99d374;
$custom-dark: #000000;

JSON

{
  "hex": "#66bf33",
  "rgb": {
    "r": 102,
    "g": 191,
    "b": 51
  },
  "hsl": {
    "h": 98.143,
    "s": 57.851,
    "l": 47.451
  },
  "oklch": {
    "l": 0.72201,
    "c": 0.19226,
    "h": 136.6
  },
  "luminance": 0.40325
}

Semantic roles & 50–950 ramp

primary

#66BF33

secondary

#B183CB

accent

#47E1A9

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66BF33

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

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