#66A01C#66A01C

#66A01C is a light, vivid yellow-green. Relative luminance 0.281; OKLCH L 64.2% C 0.166 H 131.5°. Best body text is #000000 at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#66A01C
RGB	rgb(102, 160, 28)
HSL	hsl(86, 70%, 37%)
HSV	hsv(86, 83%, 63%)
CMYK	cmyk(36.2%, 0%, 82.5%, 37.3%)
CIE-LAB	lab(59.93, -38.79, 56.76)
CIE-LCH	lch(59.93, 68.75, 124.35°)
OKLab	oklab(64.16% -0.1102 0.1246)
OKLCH	oklch(64.16% 0.166 131.5)
XYZ	xyz(18.2597, 28.0495, 5.5504)
Luminance	0.2805 (WCAG relative)
Temperature	warm
Family	yellow-green

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#66A01C #561CA0

analogous

#A0981C #66A01C #24A01C

triadic

#66A01C #1C66A0 #A01C66

tetradic

#66A01C #1CA098 #561CA0 #A01C24

square

#66A01C #1CA098 #561CA0 #A01C24

split-complementary

#66A01C #1C24A0 #981CA0

monochromatic

#24380A #456C13 #66A01C #87D425 #A4E155

Accessibility & contrast

On white

3.18

#66A01C on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

6.61

#66A01C on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #66A01C

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##66A01C	#FFFFFF	#000000	##000000
##66A01C	1.00	3.18	6.61	6.61
#FFFFFF	3.18	1.00	21.00	21.00
#000000	6.61	21.00	1.00	1.00
##000000	6.61	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#A79300

Deuteranopia (green-blind)

#9F8F2C

Tritanopia (blue-blind)

#689988

Achromatopsia (no color)

#909090

Design tokens & code

CSS

--color: #66a01c;
/* rgb */ color: rgb(102, 160, 28);
/* oklch */ color: oklch(64.2% 0.166 131.5);

Tailwind

colors: {
  custom: {
    50: '#97bc65',
    500: '#66a01c',
    950: '#000000',
  },
}

SCSS

$custom: #66a01c;
$custom-light: #97bc65;
$custom-dark: #000000;

JSON

{
  "hex": "#66a01c",
  "rgb": {
    "r": 102,
    "g": 160,
    "b": 28
  },
  "hsl": {
    "h": 86.364,
    "s": 70.213,
    "l": 36.863
  },
  "oklch": {
    "l": 0.6416,
    "c": 0.16632,
    "h": 131.5
  },
  "luminance": 0.2805
}

Semantic roles & 50–950 ramp

primary

#66A01C

secondary

#8553C4

accent

#3BED89

background

#F9FBF6

surface

#F2F6EB

border

#CCD0C6

text

#0E1206

muted

#7E817A

Preview Lab

Preview with #66A01C

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

Preview Lab → · Contrast checker → · Palette generator →