#666B17#666B17

#666B17 is a mid, moderate yellow. Relative luminance 0.134; OKLCH L 50.7% C 0.103 H 113.0°. Best body text is #FFFFFF at 5.71:1 contrast (WCAG AA passes).

Color values

HEX	#666B17
RGB	rgb(102, 107, 23)
HSL	hsl(64, 65%, 25%)
HSV	hsv(64, 79%, 42%)
CMYK	cmyk(4.7%, 0%, 78.5%, 58%)
CIE-LAB	lab(43.36, -13.01, 43.15)
CIE-LCH	lch(43.36, 45.07, 106.78°)
OKLab	oklab(50.73% -0.0403 0.0949)
OKLCH	oklch(50.73% 0.103 113)
XYZ	xyz(10.8922, 13.4023, 2.8236)
Luminance	0.1340 (WCAG relative)
Temperature	warm
Family	yellow

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#666B17 #1C176B

analogous

#6B4617 #666B17 #3C6B17

triadic

#666B17 #17666B #6B1766

tetradic

#666B17 #176B46 #1C176B #6B173C

square

#666B17 #176B46 #1C176B #6B173C

split-complementary

#666B17 #173C6B #46176B

monochromatic

#181905 #36390C #666B17 #969D22 #C6D02D

Accessibility & contrast

On white

5.71

#666B17 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.68

#666B17 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #666B17

5.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##666B17	#FFFFFF	#000000	##FFFFFF
##666B17	1.00	5.71	3.68	5.71
#FFFFFF	5.71	1.00	21.00	1.00
#000000	3.68	21.00	1.00	21.00
##FFFFFF	5.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#746605

Deuteranopia (green-blind)

#74671E

Tritanopia (blue-blind)

#6D645B

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #666b17;
/* rgb */ color: rgb(102, 107, 23);
/* oklch */ color: oklch(50.7% 0.103 113.0);

Tailwind

colors: {
  custom: {
    50: '#94955c',
    500: '#666b17',
    950: '#000000',
  },
}

SCSS

$custom: #666b17;
$custom-light: #94955c;
$custom-dark: #000000;

JSON

{
  "hex": "#666b17",
  "rgb": {
    "r": 102,
    "g": 107,
    "b": 23
  },
  "hsl": {
    "h": 63.571,
    "s": 64.615,
    "l": 25.49
  },
  "oklch": {
    "l": 0.50729,
    "c": 0.10311,
    "h": 113
  },
  "luminance": 0.13402
}

Semantic roles & 50–950 ramp

primary

#666B17

secondary

#433DA1

accent

#40E84A

background

#F9F9F5

surface

#F2F1E9

border

#CCCBC5

text

#0E0D04

muted

#7E7E79

Preview Lab

Preview with #666B17

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

Preview Lab → · Contrast checker → · Palette generator →