#663B17#663B17

#663B17 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.078 H 57.4°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#663B17
RGB	rgb(102, 59, 23)
HSL	hsl(27, 63%, 25%)
HSV	hsv(27, 77%, 40%)
CMYK	cmyk(0%, 42.2%, 77.5%, 60%)
CIE-LAB	lab(29.45, 15.64, 29.45)
CIE-LCH	lch(29.45, 33.35, 62.03°)
OKLab	oklab(39.76% 0.0421 0.0658)
OKLCH	oklch(39.76% 0.078 57.4)
XYZ	xyz(7.1987, 6.0153, 1.5924)
Luminance	0.0602 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B17 #174266

analogous

#66171A #663B17 #666317

triadic

#663B17 #17663B #3B1766

tetradic

#663B17 #1A6617 #174266 #631766

square

#663B17 #1A6617 #174266 #631766

split-complementary

#663B17 #176663 #171A66

monochromatic

#190E06 #341E0C #663B17 #985822 #CA752E

Accessibility & contrast

On white

9.53

#663B17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B17

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B17	#FFFFFF	#000000	##FFFFFF
##663B17	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F13

Deuteranopia (green-blind)

#524917

Tritanopia (blue-blind)

#703233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b17;
/* rgb */ color: rgb(102, 59, 23);
/* oklch */ color: oklch(39.8% 0.078 57.4);

Tailwind

colors: {
  custom: {
    50: '#967156',
    500: '#663b17',
    950: '#000000',
  },
}

SCSS

$custom: #663b17;
$custom-light: #967156;
$custom-dark: #000000;

JSON

{
  "hex": "#663b17",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 23
  },
  "hsl": {
    "h": 27.342,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.3976,
    "c": 0.07812,
    "h": 57.4
  },
  "luminance": 0.06015
}

Semantic roles & 50–950 ramp

primary

#663B17

secondary

#3C719C

accent

#9BE642

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #663B17

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

Preview Lab → · Contrast checker → · Palette generator →