#663D2B#663D2B

#663D2B is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.5% C 0.065 H 44.2°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#663D2B
RGB	rgb(102, 61, 43)
HSL	hsl(18, 41%, 28%)
HSV	hsv(18, 58%, 40%)
CMYK	cmyk(0%, 40.2%, 57.8%, 60%)
CIE-LAB	lab(30.25, 15.92, 18.61)
CIE-LCH	lch(30.25, 24.49, 49.46°)
OKLab	oklab(40.47% 0.0463 0.0451)
OKLCH	oklch(40.47% 0.065 44.2)
XYZ	xyz(7.5848, 6.3374, 3.1088)
Luminance	0.0634 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D2B #2B5466

analogous

#662B36 #663D2B #665A2B

triadic

#663D2B #2B663D #3D2B66

tetradic

#663D2B #36662B #2B5466 #5A2B66

square

#663D2B #36662B #2B5466 #5A2B66

split-complementary

#663D2B #2B665A #2B3666

monochromatic

#160D09 #3B2319 #663D2B #91573D #B77254

Accessibility & contrast

On white

9.26

#663D2B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#663D2B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D2B

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D2B	#FFFFFF	#000000	##FFFFFF
##663D2B	1.00	9.26	2.27	9.26
#FFFFFF	9.26	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#484229

Deuteranopia (green-blind)

#524B2B

Tritanopia (blue-blind)

#6F3639

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663d2b;
/* rgb */ color: rgb(102, 61, 43);
/* oklch */ color: oklch(40.5% 0.065 44.2);

Tailwind

colors: {
  custom: {
    50: '#947364',
    500: '#663d2b',
    950: '#000000',
  },
}

SCSS

$custom: #663d2b;
$custom-light: #947364;
$custom-dark: #000000;

JSON

{
  "hex": "#663d2b",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 43
  },
  "hsl": {
    "h": 18.305,
    "s": 40.69,
    "l": 28.431
  },
  "oklch": {
    "l": 0.40465,
    "c": 0.06466,
    "h": 44.2
  },
  "luminance": 0.06337
}

Semantic roles & 50–950 ramp

primary

#663D2B

secondary

#558498

accent

#ACD157

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0D0805

muted

#7E7B7A

Preview Lab

Preview with #663D2B

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

Preview Lab → · Contrast checker → · Palette generator →