#66AE28#66AE28

#66AE28 is a light, vivid yellow-green. Relative luminance 0.333; OKLCH L 67.8% C 0.178 H 134.2°. Best body text is #000000 at 7.65:1 contrast (WCAG AA passes).

Color values

HEX	#66AE28
RGB	rgb(102, 174, 40)
HSL	hsl(92, 63%, 42%)
HSV	hsv(92, 77%, 68%)
CMYK	cmyk(41.4%, 0%, 77%, 31.8%)
CIE-LAB	lab(64.36, -44.13, 57.24)
CIE-LCH	lch(64.36, 72.27, 127.63°)
OKLab	oklab(67.8% -0.1238 0.1274)
OKLCH	oklch(67.8% 0.178 134.2)
XYZ	xyz(20.9981, 33.2490, 7.3183)
Luminance	0.3325 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AE28 #7028AE

analogous

#A9AE28 #66AE28 #28AE2D

triadic

#66AE28 #2866AE #AE2866

tetradic

#66AE28 #28A9AE #7028AE #AE2D28

square

#66AE28 #28A9AE #7028AE #AE2D28

split-complementary

#66AE28 #2D28AE #AE28A9

monochromatic

#2C4A11 #497C1D #66AE28 #84D340 #A4DF72

Accessibility & contrast

On white

2.75

#66AE28 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.65

#66AE28 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AE28

7.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AE28	#FFFFFF	#000000	##000000
##66AE28	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)

#B5A005

Deuteranopia (green-blind)

#AB9A36

Tritanopia (blue-blind)

#65A795

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #66ae28;
/* rgb */ color: rgb(102, 174, 40);
/* oklch */ color: oklch(67.8% 0.178 134.2);

Tailwind

colors: {
  custom: {
    50: '#98c76c',
    500: '#66ae28',
    950: '#000000',
  },
}

SCSS

$custom: #66ae28;
$custom-light: #98c76c;
$custom-dark: #000000;

JSON

{
  "hex": "#66ae28",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 40
  },
  "hsl": {
    "h": 92.239,
    "s": 62.617,
    "l": 41.961
  },
  "oklch": {
    "l": 0.67802,
    "c": 0.17765,
    "h": 134.2
  },
  "luminance": 0.3325
}

Semantic roles & 50–950 ramp

primary

#66AE28

secondary

#9C6CC6

accent

#42E69A

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AE28

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

Preview Lab → · Contrast checker → · Palette generator →