#66AF28#66AF28

#66AF28 is a light, vivid yellow-green. Relative luminance 0.336; OKLCH L 68.1% C 0.179 H 134.3°. Best body text is #000000 at 7.73:1 contrast (WCAG AA passes).

Color values

HEX	#66AF28
RGB	rgb(102, 175, 40)
HSL	hsl(92, 63%, 42%)
HSV	hsv(92, 77%, 69%)
CMYK	cmyk(41.7%, 0%, 77.1%, 31.4%)
CIE-LAB	lab(64.67, -44.54, 57.54)
CIE-LCH	lch(64.67, 72.76, 127.74°)
OKLab	oklab(68.06% -0.1249 0.128)
OKLCH	oklch(68.06% 0.179 134.3)
XYZ	xyz(21.1921, 33.6368, 7.3830)
Luminance	0.3364 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AF28 #7128AF

analogous

#AAAF28 #66AF28 #28AF2D

triadic

#66AF28 #2866AF #AF2866

tetradic

#66AF28 #28AAAF #7128AF #AF2D28

square

#66AF28 #28AAAF #7128AF #AF2D28

split-complementary

#66AF28 #2D28AF #AF28AA

monochromatic

#2C4B11 #497D1D #66AF28 #84D441 #A4DF73

Accessibility & contrast

On white

2.72

#66AF28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.73

#66AF28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AF28

7.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AF28	#FFFFFF	#000000	##000000
##66AF28	1.00	2.72	7.73	7.73
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.73	21.00	1.00	1.00
##000000	7.73	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A104

Deuteranopia (green-blind)

#AC9B36

Tritanopia (blue-blind)

#65A896

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #66af28;
/* rgb */ color: rgb(102, 175, 40);
/* oklch */ color: oklch(68.1% 0.179 134.3);

Tailwind

colors: {
  custom: {
    50: '#98c76d',
    500: '#66af28',
    950: '#000000',
  },
}

SCSS

$custom: #66af28;
$custom-light: #98c76d;
$custom-dark: #000000;

JSON

{
  "hex": "#66af28",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 40
  },
  "hsl": {
    "h": 92.444,
    "s": 62.791,
    "l": 42.157
  },
  "oklch": {
    "l": 0.68057,
    "c": 0.17888,
    "h": 134.3
  },
  "luminance": 0.33638
}

Semantic roles & 50–950 ramp

primary

#66AF28

secondary

#9D6DC6

accent

#42E69B

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66AF28

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

Preview Lab → · Contrast checker → · Palette generator →