#663C17#663C17

#663C17 is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.078 H 58.8°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#663C17
RGB	rgb(102, 60, 23)
HSL	hsl(28, 63%, 25%)
HSV	hsv(28, 77%, 40%)
CMYK	cmyk(0%, 41.2%, 77.5%, 60%)
CIE-LAB	lab(29.71, 15.02, 29.73)
CIE-LCH	lch(29.71, 33.31, 63.19°)
OKLab	oklab(39.96% 0.0402 0.0664)
OKLCH	oklch(39.96% 0.078 58.8)
XYZ	xyz(7.2506, 6.1191, 1.6097)
Luminance	0.0612 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C17 #174166

analogous

#66171A #663C17 #666417

triadic

#663C17 #17663C #3C1766

tetradic

#663C17 #1A6617 #174166 #641766

square

#663C17 #1A6617 #174166 #641766

split-complementary

#663C17 #176664 #171A66

monochromatic

#190F06 #341F0C #663C17 #985922 #CA772E

Accessibility & contrast

On white

9.44

#663C17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#663C17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C17

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C17	#FFFFFF	#000000	##FFFFFF
##663C17	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494013

Deuteranopia (green-blind)

#534A17

Tritanopia (blue-blind)

#703334

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663c17;
/* rgb */ color: rgb(102, 60, 23);
/* oklch */ color: oklch(40.0% 0.078 58.8);

Tailwind

colors: {
  custom: {
    50: '#967256',
    500: '#663c17',
    950: '#000000',
  },
}

SCSS

$custom: #663c17;
$custom-light: #967256;
$custom-dark: #000000;

JSON

{
  "hex": "#663c17",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 23
  },
  "hsl": {
    "h": 28.101,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.39961,
    "c": 0.07764,
    "h": 58.8
  },
  "luminance": 0.06118
}

Semantic roles & 50–950 ramp

primary

#663C17

secondary

#3C6F9C

accent

#99E642

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663C17

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

Preview Lab → · Contrast checker → · Palette generator →