#66AB27#66AB27

#66AB27 is a light, vivid yellow-green. Relative luminance 0.321; OKLCH L 67.0% C 0.174 H 133.7°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#66AB27
RGB	rgb(102, 171, 39)
HSL	hsl(91, 63%, 41%)
HSV	hsv(91, 77%, 67%)
CMYK	cmyk(40.4%, 0%, 77.2%, 32.9%)
CIE-LAB	lab(63.42, -42.93, 56.67)
CIE-LCH	lch(63.42, 71.09, 127.15°)
OKLab	oklab(67.03% -0.1207 0.1261)
OKLCH	oklch(67.03% 0.174 133.7)
XYZ	xyz(20.4083, 32.0961, 7.0389)
Luminance	0.3210 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AB27 #6C27AB

analogous

#A8AB27 #66AB27 #27AB2A

triadic

#66AB27 #2766AB #AB2766

tetradic

#66AB27 #27A8AB #6C27AB #AB2A27

square

#66AB27 #27A8AB #6C27AB #AB2A27

split-complementary

#66AB27 #2A27AB #AB27A8

monochromatic

#2B4710 #48791C #66AB27 #84D33D #A4DE6E

Accessibility & contrast

On white

2.83

#66AB27 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#66AB27 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AB27

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AB27	#FFFFFF	#000000	##000000
##66AB27	1.00	2.83	7.42	7.42
#FFFFFF	2.83	1.00	21.00	21.00
#000000	7.42	21.00	1.00	1.00
##000000	7.42	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B29D04

Deuteranopia (green-blind)

#A99835

Tritanopia (blue-blind)

#66A492

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #66ab27;
/* rgb */ color: rgb(102, 171, 39);
/* oklch */ color: oklch(67.0% 0.174 133.7);

Tailwind

colors: {
  custom: {
    50: '#98c46c',
    500: '#66ab27',
    950: '#000000',
  },
}

SCSS

$custom: #66ab27;
$custom-light: #98c46c;
$custom-dark: #000000;

JSON

{
  "hex": "#66ab27",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 39
  },
  "hsl": {
    "h": 91.364,
    "s": 62.857,
    "l": 41.176
  },
  "oklch": {
    "l": 0.67031,
    "c": 0.17449,
    "h": 133.7
  },
  "luminance": 0.32097
}

Semantic roles & 50–950 ramp

primary

#66AB27

secondary

#9969C5

accent

#42E698

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AB27

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

Preview Lab → · Contrast checker → · Palette generator →