#66AB28#66AB28

#66AB28 is a light, vivid yellow-green. Relative luminance 0.321; OKLCH L 67.0% C 0.174 H 133.8°. Best body text is #000000 at 7.42:1 contrast (WCAG AA passes).

Color values

HEX	#66AB28
RGB	rgb(102, 171, 40)
HSL	hsl(92, 62%, 41%)
HSV	hsv(92, 77%, 67%)
CMYK	cmyk(40.4%, 0%, 76.6%, 32.9%)
CIE-LAB	lab(63.43, -42.87, 56.34)
CIE-LCH	lch(63.43, 70.80, 127.27°)
OKLab	oklab(67.04% -0.1204 0.1255)
OKLCH	oklch(67.04% 0.174 133.8)
XYZ	xyz(20.4250, 32.1028, 7.1273)
Luminance	0.3210 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AB28 #6D28AB

analogous

#A8AB28 #66AB28 #28AB2C

triadic

#66AB28 #2866AB #AB2866

tetradic

#66AB28 #28A8AB #6D28AB #AB2C28

square

#66AB28 #28A8AB #6D28AB #AB2C28

split-complementary

#66AB28 #2C28AB #AB28A8

monochromatic

#2B4811 #48791C #66AB28 #84D23E #A4DE70

Accessibility & contrast

On white

2.83

#66AB28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.42

#66AB28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AB28

7.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AB28	#FFFFFF	#000000	##000000
##66AB28	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)

#B29D07

Deuteranopia (green-blind)

#A99836

Tritanopia (blue-blind)

#66A492

Achromatopsia (no color)

#9A9A9A

Design tokens & code

CSS

--color: #66ab28;
/* rgb */ color: rgb(102, 171, 40);
/* oklch */ color: oklch(67.0% 0.174 133.8);

Tailwind

colors: {
  custom: {
    50: '#97c46c',
    500: '#66ab28',
    950: '#000000',
  },
}

SCSS

$custom: #66ab28;
$custom-light: #97c46c;
$custom-dark: #000000;

JSON

{
  "hex": "#66ab28",
  "rgb": {
    "r": 102,
    "g": 171,
    "b": 40
  },
  "hsl": {
    "h": 91.603,
    "s": 62.085,
    "l": 41.373
  },
  "oklch": {
    "l": 0.67037,
    "c": 0.17396,
    "h": 133.8
  },
  "luminance": 0.32104
}

Semantic roles & 50–950 ramp

primary

#66AB28

secondary

#9A6AC4

accent

#43E598

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AB28

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

Preview Lab → · Contrast checker → · Palette generator →