#663F2A#663F2A

#663F2A is a dark, moderate orange. Relative luminance 0.065; OKLCH L 40.8% C 0.064 H 48.6°. Best body text is #FFFFFF at 9.09:1 contrast (WCAG AA passes).

Color values

HEX	#663F2A
RGB	rgb(102, 63, 42)
HSL	hsl(21, 42%, 28%)
HSV	hsv(21, 59%, 40%)
CMYK	cmyk(0%, 38.2%, 58.8%, 60%)
CIE-LAB	lab(30.75, 14.59, 19.87)
CIE-LCH	lch(30.75, 24.65, 53.71°)
OKLab	oklab(40.85% 0.0422 0.0479)
OKLCH	oklch(40.85% 0.064 48.6)
XYZ	xyz(7.6754, 6.5476, 3.0496)
Luminance	0.0655 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F2A #2A5166

analogous

#662A33 #663F2A #665D2A

triadic

#663F2A #2A663F #3F2A66

tetradic

#663F2A #33662A #2A5166 #5D2A66

square

#663F2A #33662A #2A5166 #5D2A66

split-complementary

#663F2A #2A665D #2A3366

monochromatic

#160D09 #3B2418 #663F2A #915A3C #B87652

Accessibility & contrast

On white

9.09

#663F2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#663F2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F2A

9.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F2A	#FFFFFF	#000000	##FFFFFF
##663F2A	1.00	9.09	2.31	9.09
#FFFFFF	9.09	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A4328

Deuteranopia (green-blind)

#534C2A

Tritanopia (blue-blind)

#6F383A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #663f2a;
/* rgb */ color: rgb(102, 63, 42);
/* oklch */ color: oklch(40.8% 0.064 48.6);

Tailwind

colors: {
  custom: {
    50: '#947464',
    500: '#663f2a',
    950: '#000000',
  },
}

SCSS

$custom: #663f2a;
$custom-light: #947464;
$custom-dark: #000000;

JSON

{
  "hex": "#663f2a",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 42
  },
  "hsl": {
    "h": 21,
    "s": 41.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.4085,
    "c": 0.06379,
    "h": 48.6
  },
  "luminance": 0.06547
}

Semantic roles & 50–950 ramp

primary

#663F2A

secondary

#548098

accent

#A6D156

background

#F9F7F5

surface

#F2EDEA

border

#CCC8C6

text

#0D0805

muted

#7E7B79

Preview Lab

Preview with #663F2A

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

Preview Lab → · Contrast checker → · Palette generator →