#66A61D#66A61D

#66A61D is a light, vivid yellow-green. Relative luminance 0.302; OKLCH L 65.7% C 0.173 H 132.5°. Best body text is #000000 at 7.04:1 contrast (WCAG AA passes).

Color values

HEX	#66A61D
RGB	rgb(102, 166, 29)
HSL	hsl(88, 70%, 38%)
HSV	hsv(88, 83%, 65%)
CMYK	cmyk(38.6%, 0%, 82.5%, 34.9%)
CIE-LAB	lab(61.81, -41.33, 58.18)
CIE-LCH	lch(61.81, 71.37, 125.39°)
OKLab	oklab(65.7% -0.117 0.1277)
OKLCH	oklch(65.7% 0.173 132.5)
XYZ	xyz(19.3372, 30.1850, 5.9696)
Luminance	0.3019 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A61D #5D1DA6

analogous

#A6A11D #66A61D #22A61D

triadic

#66A61D #1D66A6 #A61D66

tetradic

#66A61D #1DA6A1 #5D1DA6 #A61D22

square

#66A61D #1DA6A1 #5D1DA6 #A61D22

split-complementary

#66A61D #1D22A6 #A11DA6

monochromatic

#263E0B #467214 #66A61D #86D927 #A3E25B

Accessibility & contrast

On white

2.98

#66A61D on #FFFFFF

AA ✗AA large ✗AAA ✗

On black

7.04

#66A61D on #000000

AA ✓AA large ✓AAA ✓

Best text color

#000000 on #66A61D

7.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A61D	#FFFFFF	#000000	##000000
##66A61D	1.00	2.98	7.04	7.04
#FFFFFF	2.98	1.00	21.00	21.00
#000000	7.04	21.00	1.00	1.00
##000000	7.04	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#AD9800

Deuteranopia (green-blind)

#A5942D

Tritanopia (blue-blind)

#679F8D

Achromatopsia (no color)

#959595

Design tokens & code

CSS

--color: #66a61d;
/* rgb */ color: rgb(102, 166, 29);
/* oklch */ color: oklch(65.7% 0.173 132.5);

Tailwind

colors: {
  custom: {
    50: '#97c167',
    500: '#66a61d',
    950: '#000000',
  },
}

SCSS

$custom: #66a61d;
$custom-light: #97c167;
$custom-dark: #000000;

JSON

{
  "hex": "#66a61d",
  "rgb": {
    "r": 102,
    "g": 166,
    "b": 29
  },
  "hsl": {
    "h": 88.029,
    "s": 70.256,
    "l": 38.235
  },
  "oklch": {
    "l": 0.65699,
    "c": 0.17319,
    "h": 132.5
  },
  "luminance": 0.30186
}

Semantic roles & 50–950 ramp

primary

#66A61D

secondary

#8C59C6

accent

#3BED8E

background

#F9FBF6

surface

#F2F7EB

border

#CCD0C6

text

#0E1207

muted

#7E817A

Preview Lab

Preview with #66A61D

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

Preview Lab → · Contrast checker → · Palette generator →