#666A17#666A17

#666A17 is a mid, moderate yellow. Relative luminance 0.132; OKLCH L 50.5% C 0.102 H 112.3°. Best body text is #FFFFFF at 5.77:1 contrast (WCAG AA passes).

Color values

HEX	#666A17
RGB	rgb(102, 106, 23)
HSL	hsl(63, 64%, 25%)
HSV	hsv(63, 78%, 42%)
CMYK	cmyk(3.8%, 0%, 78.3%, 58.4%)
CIE-LAB	lab(43.06, -12.46, 42.86)
CIE-LCH	lch(43.06, 44.64, 106.21°)
OKLab	oklab(50.48% -0.0387 0.0943)
OKLCH	oklch(50.48% 0.102 112.3)
XYZ	xyz(10.7885, 13.1950, 2.7890)
Luminance	0.1320 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666A17 #1B176A

analogous

#6A4517 #666A17 #3C6A17

triadic

#666A17 #17666A #6A1766

tetradic

#666A17 #176A45 #1B176A #6A173C

square

#666A17 #176A45 #1B176A #6A173C

split-complementary

#666A17 #173C6A #45176A

monochromatic

#181905 #36380C #666A17 #969C22 #C7CF2D

Accessibility & contrast

On white

5.77

#666A17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.64

#666A17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666A17

5.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666A17	#FFFFFF	#000000	##FFFFFF
##666A17	1.00	5.77	3.64	5.77
#FFFFFF	5.77	1.00	21.00	1.00
#000000	3.64	21.00	1.00	21.00
##FFFFFF	5.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#736505

Deuteranopia (green-blind)

#73671E

Tritanopia (blue-blind)

#6D635A

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #666a17;
/* rgb */ color: rgb(102, 106, 23);
/* oklch */ color: oklch(50.5% 0.102 112.3);

Tailwind

colors: {
  custom: {
    50: '#94945b',
    500: '#666a17',
    950: '#000000',
  },
}

SCSS

$custom: #666a17;
$custom-light: #94945b;
$custom-dark: #000000;

JSON

{
  "hex": "#666a17",
  "rgb": {
    "r": 102,
    "g": 106,
    "b": 23
  },
  "hsl": {
    "h": 62.892,
    "s": 64.341,
    "l": 25.294
  },
  "oklch": {
    "l": 0.50483,
    "c": 0.10196,
    "h": 112.3
  },
  "luminance": 0.13195
}

Semantic roles & 50–950 ramp

primary

#666A17

secondary

#413DA0

accent

#40E749

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666A17

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

Preview Lab → · Contrast checker → · Palette generator →