#666A10#666A10

#666A10 is a mid, moderate yellow. Relative luminance 0.132; OKLCH L 50.4% C 0.106 H 112.3°. Best body text is #FFFFFF at 5.78:1 contrast (WCAG AA passes).

Color values

HEX	#666A10
RGB	rgb(102, 106, 16)
HSL	hsl(63, 74%, 24%)
HSV	hsv(63, 85%, 42%)
CMYK	cmyk(3.8%, 0%, 84.9%, 58.4%)
CIE-LAB	lab(43.02, -12.76, 45.16)
CIE-LCH	lch(43.02, 46.93, 105.78°)
OKLab	oklab(50.44% -0.0402 0.0978)
OKLCH	oklch(50.44% 0.106 112.3)
XYZ	xyz(10.7274, 13.1705, 2.4672)
Luminance	0.1317 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A10 #14106A

analogous

#6A4110 #666A10 #396A10

triadic

#666A10 #10666A #6A1066

tetradic

#666A10 #106A41 #14106A #6A1039

square

#666A10 #106A41 #14106A #6A1039

split-complementary

#666A10 #10396A #41106A

monochromatic

#1A1B04 #333508 #666A10 #999F18 #CCD420

Accessibility & contrast

On white

5.78

#666A10 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.63

#666A10 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A10

5.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A10	#FFFFFF	#000000	##FFFFFF
##666A10	1.00	5.78	3.63	5.78
#FFFFFF	5.78	1.00	21.00	1.00
#000000	3.63	21.00	1.00	21.00
##FFFFFF	5.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736500

Deuteranopia (green-blind)

#736719

Tritanopia (blue-blind)

#6E635A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #666a10;
/* rgb */ color: rgb(102, 106, 16);
/* oklch */ color: oklch(50.4% 0.106 112.3);

Tailwind

colors: {
  custom: {
    50: '#959458',
    500: '#666a10',
    950: '#000000',
  },
}

SCSS

$custom: #666a10;
$custom-light: #959458;
$custom-dark: #000000;

JSON

{
  "hex": "#666a10",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 16
  },
  "hsl": {
    "h": 62.667,
    "s": 73.77,
    "l": 23.922
  },
  "oklch": {
    "l": 0.50442,
    "c": 0.10576,
    "h": 112.3
  },
  "luminance": 0.1317
}

Semantic roles & 50–950 ramp

primary

#666A10

secondary

#3934A2

accent

#37F040

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666A10

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

Preview Lab → · Contrast checker → · Palette generator →