#66B322#66B322

#66B322 is a light, vivid yellow-green. Relative luminance 0.352; OKLCH L 69.0% C 0.187 H 134.4°. Best body text is #000000 at 8.04:1 contrast (WCAG AA passes).

Color values

HEX	#66B322
RGB	rgb(102, 179, 34)
HSL	hsl(92, 68%, 42%)
HSV	hsv(92, 81%, 70%)
CMYK	cmyk(43%, 0%, 81%, 29.8%)
CIE-LAB	lab(65.89, -46.49, 60.50)
CIE-LCH	lch(65.89, 76.30, 127.54°)
OKLab	oklab(69.04% -0.1305 0.1333)
OKLCH	oklch(69.04% 0.187 134.4)
XYZ	xyz(21.8879, 35.1792, 7.1500)
Luminance	0.3518 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B322 #6F22B3

analogous

#AFB322 #66B322 #22B327

triadic

#66B322 #2266B3 #B32266

tetradic

#66B322 #22AFB3 #6F22B3 #B32722

square

#66B322 #22AFB3 #6F22B3 #B32722

split-complementary

#66B322 #2722B3 #B322AF

monochromatic

#2B4C0E #498018 #66B322 #84D939 #A4E36C

Accessibility & contrast

On white

2.61

#66B322 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.04

#66B322 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B322

8.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B322	#FFFFFF	#000000	##000000
##66B322	1.00	2.61	8.04	8.04
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.04	21.00	1.00	1.00
##000000	8.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA400

Deuteranopia (green-blind)

#B09E33

Tritanopia (blue-blind)

#65AC99

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66b322;
/* rgb */ color: rgb(102, 179, 34);
/* oklch */ color: oklch(69.0% 0.187 134.4);

Tailwind

colors: {
  custom: {
    50: '#99ca6b',
    500: '#66b322',
    950: '#000000',
  },
}

SCSS

$custom: #66b322;
$custom-light: #99ca6b;
$custom-dark: #000000;

JSON

{
  "hex": "#66b322",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 34
  },
  "hsl": {
    "h": 91.862,
    "s": 68.075,
    "l": 41.765
  },
  "oklch": {
    "l": 0.69044,
    "c": 0.18661,
    "h": 134.4
  },
  "luminance": 0.3518
}

Semantic roles & 50–950 ramp

primary

#66B322

secondary

#9B68C9

accent

#3DEB99

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1307

muted

#7E827A

Preview Lab

Preview with #66B322

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

Preview Lab → · Contrast checker → · Palette generator →