#66B329#66B329

#66B329 is a light, vivid yellow-green. Relative luminance 0.352; OKLCH L 69.1% C 0.183 H 134.8°. Best body text is #000000 at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#66B329
RGB	rgb(102, 179, 41)
HSL	hsl(93, 63%, 43%)
HSV	hsv(93, 77%, 70%)
CMYK	cmyk(43%, 0%, 77.1%, 29.8%)
CIE-LAB	lab(65.92, -46.12, 58.41)
CIE-LCH	lch(65.92, 74.42, 128.30°)
OKLab	oklab(69.08% -0.1291 0.13)
OKLCH	oklch(69.08% 0.183 134.8)
XYZ	xyz(21.9994, 35.2238, 7.7371)
Luminance	0.3523 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66B329 #7629B3

analogous

#ABB329 #66B329 #29B331

triadic

#66B329 #2966B3 #B32966

tetradic

#66B329 #29ABB3 #7629B3 #B33129

square

#66B329 #29ABB3 #7629B3 #B33129

split-complementary

#66B329 #3129B3 #B329AB

monochromatic

#2D4F12 #4A811E #66B329 #84D445 #A5E077

Accessibility & contrast

On white

2.61

#66B329 on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

8.05

#66B329 on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66B329

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66B329	#FFFFFF	#000000	##000000
##66B329	1.00	2.61	8.05	8.05
#FFFFFF	2.61	1.00	21.00	21.00
#000000	8.05	21.00	1.00	1.00
##000000	8.05	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#BAA404

Deuteranopia (green-blind)

#B09E38

Tritanopia (blue-blind)

#64AC99

Achromatopsia (no color)

#A0A0A0

Design tokens & code

CSS

--color: #66b329;
/* rgb */ color: rgb(102, 179, 41);
/* oklch */ color: oklch(69.1% 0.183 134.8);

Tailwind

colors: {
  custom: {
    50: '#98ca6e',
    500: '#66b329',
    950: '#000000',
  },
}

SCSS

$custom: #66b329;
$custom-light: #98ca6e;
$custom-dark: #000000;

JSON

{
  "hex": "#66b329",
  "rgb": {
    "r": 102,
    "g": 179,
    "b": 41
  },
  "hsl": {
    "h": 93.478,
    "s": 62.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.69083,
    "c": 0.18323,
    "h": 134.8
  },
  "luminance": 0.35225
}

Semantic roles & 50–950 ramp

primary

#66B329

secondary

#A170C7

accent

#42E69D

background

#F9FCF6

surface

#F2F8EC

border

#CCD1C7

text

#0E1308

muted

#7E827B

Preview Lab

Preview with #66B329

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

Preview Lab → · Contrast checker → · Palette generator →