#663B13#663B13

#663B13 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.080 H 59.5°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#663B13
RGB	rgb(102, 59, 19)
HSL	hsl(29, 69%, 24%)
HSV	hsv(29, 81%, 40%)
CMYK	cmyk(0%, 42.2%, 81.4%, 60%)
CIE-LAB	lab(29.41, 15.44, 31.48)
CIE-LCH	lch(29.41, 35.06, 63.88°)
OKLab	oklab(39.72% 0.0408 0.0692)
OKLCH	oklch(39.72% 0.08 59.5)
XYZ	xyz(7.1616, 6.0005, 1.3970)
Luminance	0.0600 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B13 #133E66

analogous

#661314 #663B13 #666413

triadic

#663B13 #13663B #3B1366

tetradic

#663B13 #146613 #133E66 #641366

square

#663B13 #146613 #133E66 #641366

split-complementary

#663B13 #136664 #131466

monochromatic

#1A0F05 #321D09 #663B13 #9A591D #CD7726

Accessibility & contrast

On white

9.55

#663B13 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B13 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B13

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B13	#FFFFFF	#000000	##FFFFFF
##663B13	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F0E

Deuteranopia (green-blind)

#524913

Tritanopia (blue-blind)

#703133

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b13;
/* rgb */ color: rgb(102, 59, 19);
/* oklch */ color: oklch(39.7% 0.080 59.5);

Tailwind

colors: {
  custom: {
    50: '#967153',
    500: '#663b13',
    950: '#000000',
  },
}

SCSS

$custom: #663b13;
$custom-light: #967153;
$custom-dark: #000000;

JSON

{
  "hex": "#663b13",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 19
  },
  "hsl": {
    "h": 28.916,
    "s": 68.595,
    "l": 23.725
  },
  "oklch": {
    "l": 0.3972,
    "c": 0.0803,
    "h": 59.5
  },
  "luminance": 0.06
}

Semantic roles & 50–950 ramp

primary

#663B13

secondary

#376C9D

accent

#97EB3C

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #663B13

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

Preview Lab → · Contrast checker → · Palette generator →