#663C18#663C18

#663C18 is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.077 H 58.2°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#663C18
RGB	rgb(102, 60, 24)
HSL	hsl(28, 62%, 25%)
HSV	hsv(28, 76%, 40%)
CMYK	cmyk(0%, 41.2%, 76.5%, 60%)
CIE-LAB	lab(29.72, 15.08, 29.20)
CIE-LCH	lch(29.72, 32.87, 62.69°)
OKLab	oklab(39.97% 0.0406 0.0655)
OKLCH	oklch(39.97% 0.077 58.2)
XYZ	xyz(7.2608, 6.1232, 1.6635)
Luminance	0.0612 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C18 #184266

analogous

#66181B #663C18 #666318

triadic

#663C18 #18663C #3C1866

tetradic

#663C18 #1B6618 #184266 #631866

square

#663C18 #1B6618 #184266 #631866

split-complementary

#663C18 #186663 #181B66

monochromatic

#190F06 #341F0C #663C18 #985924 #C9762F

Accessibility & contrast

On white

9.44

#663C18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#663C18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C18

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C18	#FFFFFF	#000000	##FFFFFF
##663C18	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)

#494014

Deuteranopia (green-blind)

#534A18

Tritanopia (blue-blind)

#703334

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663c18;
/* rgb */ color: rgb(102, 60, 24);
/* oklch */ color: oklch(40.0% 0.077 58.2);

Tailwind

colors: {
  custom: {
    50: '#967257',
    500: '#663c18',
    950: '#000000',
  },
}

SCSS

$custom: #663c18;
$custom-light: #967257;
$custom-dark: #000000;

JSON

{
  "hex": "#663c18",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 24
  },
  "hsl": {
    "h": 27.692,
    "s": 61.905,
    "l": 24.706
  },
  "oklch": {
    "l": 0.39972,
    "c": 0.07706,
    "h": 58.2
  },
  "luminance": 0.06122
}

Semantic roles & 50–950 ramp

primary

#663C18

secondary

#3E719C

accent

#9AE543

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663C18

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

Preview Lab → · Contrast checker → · Palette generator →