#66AF23#66AF23

#66AF23 is a light, vivid yellow-green. Relative luminance 0.336; OKLCH L 68.0% C 0.181 H 134.0°. Best body text is #000000 at 7.72:1 contrast (WCAG AA passes).

Color values

HEX	#66AF23
RGB	rgb(102, 175, 35)
HSL	hsl(91, 67%, 41%)
HSV	hsv(91, 80%, 69%)
CMYK	cmyk(41.7%, 0%, 80%, 31.4%)
CIE-LAB	lab(64.65, -44.81, 59.07)
CIE-LCH	lch(64.65, 74.14, 127.19°)
OKLab	oklab(68.03% -0.126 0.1305)
OKLCH	oklch(68.03% 0.181 134)
XYZ	xyz(21.1125, 33.6050, 6.9637)
Luminance	0.3361 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AF23 #6C23AF

analogous

#ACAF23 #66AF23 #23AF26

triadic

#66AF23 #2366AF #AF2366

tetradic

#66AF23 #23ACAF #6C23AF #AF2623

square

#66AF23 #23ACAF #6C23AF #AF2623

split-complementary

#66AF23 #2623AF #AF23AC

monochromatic

#2B490F #487C19 #66AF23 #84D738 #A4E16B

Accessibility & contrast

On white

2.72

#66AF23 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.72

#66AF23 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AF23

7.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AF23	#FFFFFF	#000000	##000000
##66AF23	1.00	2.72	7.72	7.72
#FFFFFF	2.72	1.00	21.00	21.00
#000000	7.72	21.00	1.00	1.00
##000000	7.72	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B6A000

Deuteranopia (green-blind)

#AC9B33

Tritanopia (blue-blind)

#65A895

Achromatopsia (no color)

#9D9D9D

Design tokens & code

CSS

--color: #66af23;
/* rgb */ color: rgb(102, 175, 35);
/* oklch */ color: oklch(68.0% 0.181 134.0);

Tailwind

colors: {
  custom: {
    50: '#98c76a',
    500: '#66af23',
    950: '#000000',
  },
}

SCSS

$custom: #66af23;
$custom-light: #98c76a;
$custom-dark: #000000;

JSON

{
  "hex": "#66af23",
  "rgb": {
    "r": 102,
    "g": 175,
    "b": 35
  },
  "hsl": {
    "h": 91.286,
    "s": 66.667,
    "l": 41.176
  },
  "oklch": {
    "l": 0.68028,
    "c": 0.18137,
    "h": 134
  },
  "luminance": 0.33606
}

Semantic roles & 50–950 ramp

primary

#66AF23

secondary

#9966C7

accent

#3EEA98

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AF23

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

Preview Lab → · Contrast checker → · Palette generator →