#66BE31#66BE31

#66BE31 is a light, vivid yellow-green. Relative luminance 0.399; OKLCH L 71.9% C 0.192 H 136.4°. Best body text is #000000 at 8.97:1 contrast (WCAG AA passes).

Color values

HEX	#66BE31
RGB	rgb(102, 190, 49)
HSL	hsl(97, 59%, 47%)
HSV	hsv(97, 74%, 75%)
CMYK	cmyk(46.3%, 0%, 74.2%, 25.5%)
CIE-LAB	lab(69.38, -50.03, 59.08)
CIE-LCH	lch(69.38, 77.42, 130.26°)
OKLab	oklab(71.93% -0.1391 0.1326)
OKLCH	oklch(71.93% 0.192 136.4)
XYZ	xyz(24.4466, 39.8719, 9.3130)
Luminance	0.3987 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66BE31 #8931BE

analogous

#ADBE31 #66BE31 #31BE43

triadic

#66BE31 #3166BE #BE3166

tetradic

#66BE31 #31ADBE #8931BE #BE4331

square

#66BE31 #31ADBE #8931BE #BE4331

split-complementary

#66BE31 #4331BE #BE31AD

monochromatic

#325D18 #4C8D24 #66BE31 #87D458 #AAE189

Accessibility & contrast

On white

2.34

#66BE31 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.97

#66BE31 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66BE31

8.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66BE31	#FFFFFF	#000000	##000000
##66BE31	1.00	2.34	8.97	8.97
#FFFFFF	2.34	1.00	21.00	21.00
#000000	8.97	21.00	1.00	1.00
##000000	8.97	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#C5AE14

Deuteranopia (green-blind)

#B9A73F

Tritanopia (blue-blind)

#62B7A3

Achromatopsia (no color)

#A9A9A9

Design tokens & code

CSS

--color: #66be31;
/* rgb */ color: rgb(102, 190, 49);
/* oklch */ color: oklch(71.9% 0.192 136.4);

Tailwind

colors: {
  custom: {
    50: '#99d273',
    500: '#66be31',
    950: '#000000',
  },
}

SCSS

$custom: #66be31;
$custom-light: #99d273;
$custom-dark: #000000;

JSON

{
  "hex": "#66be31",
  "rgb": {
    "r": 102,
    "g": 190,
    "b": 49
  },
  "hsl": {
    "h": 97.447,
    "s": 58.996,
    "l": 46.863
  },
  "oklch": {
    "l": 0.71933,
    "c": 0.1922,
    "h": 136.4
  },
  "luminance": 0.39873
}

Semantic roles & 50–950 ramp

primary

#66BE31

secondary

#AF80CA

accent

#46E2A7

background

#F9FDF7

surface

#F2FAED

border

#CCD3C8

text

#0F1409

muted

#7E837B

Preview Lab

Preview with #66BE31

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

Preview Lab → · Contrast checker → · Palette generator →