#663A1F#663A1F

#663A1F is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.7% C 0.074 H 50.8°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#663A1F
RGB	rgb(102, 58, 31)
HSL	hsl(23, 53%, 26%)
HSV	hsv(23, 70%, 40%)
CMYK	cmyk(0%, 43.1%, 69.6%, 60%)
CIE-LAB	lab(29.29, 16.75, 24.76)
CIE-LCH	lch(29.29, 29.89, 55.92°)
OKLab	oklab(39.66% 0.0468 0.0573)
OKLCH	oklch(39.66% 0.074 50.8)
XYZ	xyz(7.2404, 5.9506, 2.0633)
Luminance	0.0595 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A1F #1F4B66

analogous

#661F27 #663A1F #665D1F

triadic

#663A1F #1F663A #3A1F66

tetradic

#663A1F #27661F #1F4B66 #5D1F66

square

#663A1F #27661F #1F4B66 #5D1F66

split-complementary

#663A1F #1F665D #1F2766

monochromatic

#170D07 #371F11 #663A1F #95552D #C46F3C

Accessibility & contrast

On white

9.59

#663A1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#663A1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A1F

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A1F	#FFFFFF	#000000	##FFFFFF
##663A1F	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#463F1C

Deuteranopia (green-blind)

#51491F

Tritanopia (blue-blind)

#703134

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663a1f;
/* rgb */ color: rgb(102, 58, 31);
/* oklch */ color: oklch(39.7% 0.074 50.8);

Tailwind

colors: {
  custom: {
    50: '#95705b',
    500: '#663a1f',
    950: '#000000',
  },
}

SCSS

$custom: #663a1f;
$custom-light: #95705b;
$custom-dark: #000000;

JSON

{
  "hex": "#663a1f",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 31
  },
  "hsl": {
    "h": 22.817,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.39664,
    "c": 0.07402,
    "h": 50.8
  },
  "luminance": 0.0595
}

Semantic roles & 50–950 ramp

primary

#663A1F

secondary

#467A9A

accent

#A5DD4B

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0704

muted

#7E7A79

Preview Lab

Preview with #663A1F

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

Preview Lab → · Contrast checker → · Palette generator →