#66AE27#66AE27

#66AE27 is a light, vivid yellow-green. Relative luminance 0.332; OKLCH L 67.8% C 0.178 H 134.1°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#66AE27
RGB	rgb(102, 174, 39)
HSL	hsl(92, 63%, 42%)
HSV	hsv(92, 78%, 68%)
CMYK	cmyk(41.4%, 0%, 77.6%, 31.8%)
CIE-LAB	lab(64.36, -44.18, 57.56)
CIE-LCH	lch(64.36, 72.56, 127.51°)
OKLab	oklab(67.8% -0.124 0.1279)
OKLCH	oklch(67.8% 0.178 134.1)
XYZ	xyz(20.9814, 33.2423, 7.2299)
Luminance	0.3324 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AE27 #6F27AE

analogous

#AAAE27 #66AE27 #27AE2C

triadic

#66AE27 #2766AE #AE2766

tetradic

#66AE27 #27AAAE #6F27AE #AE2C27

square

#66AE27 #27AAAE #6F27AE #AE2C27

split-complementary

#66AE27 #2C27AE #AE27AA

monochromatic

#2B4A11 #497C1C #66AE27 #84D43E #A4DF70

Accessibility & contrast

On white

2.75

#66AE27 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#66AE27 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AE27

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AE27	#FFFFFF	#000000	##000000
##66AE27	1.00	2.75	7.65	7.65
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.65	21.00	1.00	1.00
##000000	7.65	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A002

Deuteranopia (green-blind)

#AB9A36

Tritanopia (blue-blind)

#65A795

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #66ae27;
/* rgb */ color: rgb(102, 174, 39);
/* oklch */ color: oklch(67.8% 0.178 134.1);

Tailwind

colors: {
  custom: {
    50: '#98c76c',
    500: '#66ae27',
    950: '#000000',
  },
}

SCSS

$custom: #66ae27;
$custom-light: #98c76c;
$custom-dark: #000000;

JSON

{
  "hex": "#66ae27",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 39
  },
  "hsl": {
    "h": 92,
    "s": 63.38,
    "l": 41.765
  },
  "oklch": {
    "l": 0.67796,
    "c": 0.17818,
    "h": 134.1
  },
  "luminance": 0.33243
}

Semantic roles & 50–950 ramp

primary

#66AE27

secondary

#9B6BC6

accent

#41E699

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AE27

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

Preview Lab → · Contrast checker → · Palette generator →