#66A429#66A429

#66A429 is a light, vivid yellow-green. Relative luminance 0.295; OKLCH L 65.3% C 0.165 H 132.9°. Best body text is #000000 at 6.91:1 contrast (WCAG AA passes).

Color values

HEX	#66A429
RGB	rgb(102, 164, 41)
HSL	hsl(90, 60%, 40%)
HSV	hsv(90, 75%, 64%)
CMYK	cmyk(37.8%, 0%, 75%, 35.7%)
CIE-LAB	lab(61.25, -39.83, 53.88)
CIE-LCH	lch(61.25, 67.01, 126.47°)
OKLab	oklab(65.26% -0.1121 0.1205)
OKLCH	oklch(65.26% 0.165 132.9)
XYZ	xyz(19.1549, 29.5349, 6.7889)
Luminance	0.2954 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A429 #6729A4

analogous

#A3A429 #66A429 #29A42A

triadic

#66A429 #2966A4 #A42966

tetradic

#66A429 #29A3A4 #6729A4 #A42A29

square

#66A429 #29A3A4 #6729A4 #A42A29

split-complementary

#66A429 #2A29A4 #A429A3

monochromatic

#294211 #48731D #66A429 #85CE3C #A3DA6D

Accessibility & contrast

On white

3.04

#66A429 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.91

#66A429 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A429

6.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A429	#FFFFFF	#000000	##000000
##66A429	1.00	3.04	6.91	6.91
#FFFFFF	3.04	1.00	21.00	21.00
#000000	6.91	21.00	1.00	1.00
##000000	6.91	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AB970F

Deuteranopia (green-blind)

#A29235

Tritanopia (blue-blind)

#679D8C

Achromatopsia (no color)

#949494

Design tokens & code

CSS

--color: #66a429;
/* rgb */ color: rgb(102, 164, 41);
/* oklch */ color: oklch(65.3% 0.165 132.9);

Tailwind

colors: {
  custom: {
    50: '#97bf6c',
    500: '#66a429',
    950: '#000000',
  },
}

SCSS

$custom: #66a429;
$custom-light: #97bf6c;
$custom-dark: #000000;

JSON

{
  "hex": "#66a429",
  "rgb": {
    "r": 102,
    "g": 164,
    "b": 41
  },
  "hsl": {
    "h": 90.244,
    "s": 60,
    "l": 40.196
  },
  "oklch": {
    "l": 0.65258,
    "c": 0.16464,
    "h": 132.9
  },
  "luminance": 0.29536
}

Semantic roles & 50–950 ramp

primary

#66A429

secondary

#9568C1

accent

#45E395

background

#F9FBF6

surface

#F2F7EC

border

#CCD0C7

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A429

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

Preview Lab → · Contrast checker → · Palette generator →