#663C1E#663C1E

#663C1E is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.073 H 54.4°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#663C1E
RGB	rgb(102, 60, 30)
HSL	hsl(25, 55%, 26%)
HSV	hsv(25, 71%, 40%)
CMYK	cmyk(0%, 41.2%, 70.6%, 60%)
CIE-LAB	lab(29.79, 15.46, 25.92)
CIE-LCH	lch(29.79, 30.18, 59.19°)
OKLab	oklab(40.05% 0.0428 0.0597)
OKLCH	oklch(40.05% 0.073 54.4)
XYZ	xyz(7.3303, 6.1510, 2.0293)
Luminance	0.0615 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C1E #1E4866

analogous

#661E24 #663C1E #66601E

triadic

#663C1E #1E663C #3C1E66

tetradic

#663C1E #24661E #1E4866 #601E66

square

#663C1E #24661E #1E4866 #601E66

split-complementary

#663C1E #1E6660 #1E2466

monochromatic

#180E07 #372010 #663C1E #95582C #C5743A

Accessibility & contrast

On white

9.42

#663C1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#663C1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C1E

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C1E	#FFFFFF	#000000	##FFFFFF
##663C1E	1.00	9.42	2.23	9.42
#FFFFFF	9.42	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.42	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#48401B

Deuteranopia (green-blind)

#524A1E

Tritanopia (blue-blind)

#703335

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663c1e;
/* rgb */ color: rgb(102, 60, 30);
/* oklch */ color: oklch(40.0% 0.073 54.4);

Tailwind

colors: {
  custom: {
    50: '#95725b',
    500: '#663c1e',
    950: '#000000',
  },
}

SCSS

$custom: #663c1e;
$custom-light: #95725b;
$custom-dark: #000000;

JSON

{
  "hex": "#663c1e",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 30
  },
  "hsl": {
    "h": 25,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.40048,
    "c": 0.0734,
    "h": 54.4
  },
  "luminance": 0.0615
}

Semantic roles & 50–950 ramp

primary

#663C1E

secondary

#45779B

accent

#A0DE4A

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #663C1E

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

Preview Lab → · Contrast checker → · Palette generator →