#663C0F#663C0F

#663C0F is a dark, moderate orange. Relative luminance 0.061; OKLCH L 39.9% C 0.082 H 62.4°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#663C0F
RGB	rgb(102, 60, 15)
HSL	hsl(31, 74%, 23%)
HSV	hsv(31, 85%, 40%)
CMYK	cmyk(0%, 41.2%, 85.3%, 60%)
CIE-LAB	lab(29.64, 14.65, 33.58)
CIE-LCH	lch(29.64, 36.64, 66.43°)
OKLab	oklab(39.89% 0.0379 0.0726)
OKLCH	oklch(39.89% 0.082 62.4)
XYZ	xyz(7.1822, 6.0917, 1.2494)
Luminance	0.0609 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C0F #0F3966

analogous

#66100F #663C0F #64660F

triadic

#663C0F #0F663C #3C0F66

tetradic

#663C0F #0F6610 #0F3966 #660F64

square

#663C0F #0F6610 #0F3966 #660F64

split-complementary

#663C0F #0F6466 #100F66

monochromatic

#1B1004 #311D07 #663C0F #9B5B17 #D17B1F

Accessibility & contrast

On white

9.47

#663C0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#663C0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C0F

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C0F	#FFFFFF	#000000	##FFFFFF
##663C0F	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494008

Deuteranopia (green-blind)

#534A10

Tritanopia (blue-blind)

#703233

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663c0f;
/* rgb */ color: rgb(102, 60, 15);
/* oklch */ color: oklch(39.9% 0.082 62.4);

Tailwind

colors: {
  custom: {
    50: '#967251',
    500: '#663c0f',
    950: '#000000',
  },
}

SCSS

$custom: #663c0f;
$custom-light: #967251;
$custom-dark: #000000;

JSON

{
  "hex": "#663c0f",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 15
  },
  "hsl": {
    "h": 31.034,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.39887,
    "c": 0.08187,
    "h": 62.4
  },
  "luminance": 0.06091
}

Semantic roles & 50–950 ramp

primary

#663C0F

secondary

#32679F

accent

#91F137

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #663C0F

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

Preview Lab → · Contrast checker → · Palette generator →