#66AE23#66AE23

#66AE23 is a light, vivid yellow-green. Relative luminance 0.332; OKLCH L 67.8% C 0.180 H 133.9°. Best body text is #000000 at 7.64:1 contrast (WCAG AA passes).

Color values

HEX	#66AE23
RGB	rgb(102, 174, 35)
HSL	hsl(91, 67%, 41%)
HSV	hsv(91, 80%, 68%)
CMYK	cmyk(41.4%, 0%, 79.9%, 31.8%)
CIE-LAB	lab(64.34, -44.40, 58.78)
CIE-LCH	lch(64.34, 73.66, 127.07°)
OKLab	oklab(67.77% -0.1249 0.1299)
OKLCH	oklch(67.77% 0.18 133.9)
XYZ	xyz(20.9185, 33.2171, 6.8991)
Luminance	0.3322 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66AE23 #6B23AE

analogous

#ABAE23 #66AE23 #23AE25

triadic

#66AE23 #2366AE #AE2366

tetradic

#66AE23 #23ABAE #6B23AE #AE2523

square

#66AE23 #23ABAE #6B23AE #AE2523

split-complementary

#66AE23 #2523AE #AE23AB

monochromatic

#2A480F #487B19 #66AE23 #84D737 #A4E16A

Accessibility & contrast

On white

2.75

#66AE23 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.64

#66AE23 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66AE23

7.64:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66AE23	#FFFFFF	#000000	##000000
##66AE23	1.00	2.75	7.64	7.64
#FFFFFF	2.75	1.00	21.00	21.00
#000000	7.64	21.00	1.00	1.00
##000000	7.64	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#B5A000

Deuteranopia (green-blind)

#AB9A33

Tritanopia (blue-blind)

#65A795

Achromatopsia (no color)

#9C9C9C

Design tokens & code

CSS

--color: #66ae23;
/* rgb */ color: rgb(102, 174, 35);
/* oklch */ color: oklch(67.8% 0.180 133.9);

Tailwind

colors: {
  custom: {
    50: '#98c66a',
    500: '#66ae23',
    950: '#000000',
  },
}

SCSS

$custom: #66ae23;
$custom-light: #98c66a;
$custom-dark: #000000;

JSON

{
  "hex": "#66ae23",
  "rgb": {
    "r": 102,
    "g": 174,
    "b": 35
  },
  "hsl": {
    "h": 91.079,
    "s": 66.507,
    "l": 40.98
  },
  "oklch": {
    "l": 0.67773,
    "c": 0.18016,
    "h": 133.9
  },
  "luminance": 0.33218
}

Semantic roles & 50–950 ramp

primary

#66AE23

secondary

#9866C7

accent

#3EE997

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66AE23

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

Preview Lab → · Contrast checker → · Palette generator →