#663E1A#663E1A

#663E1A is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.4% C 0.075 H 59.9°. Best body text is #FFFFFF at 9.26:1 contrast (WCAG AA passes).

Color values

HEX	#663E1A
RGB	rgb(102, 62, 26)
HSL	hsl(28, 59%, 25%)
HSV	hsv(28, 75%, 40%)
CMYK	cmyk(0%, 39.2%, 74.5%, 60%)
CIE-LAB	lab(30.27, 13.97, 28.70)
CIE-LCH	lch(30.27, 31.92, 64.05°)
OKLab	oklab(40.4% 0.0376 0.0649)
OKLCH	oklch(40.4% 0.075 59.9)
XYZ	xyz(7.3891, 6.3453, 1.8127)
Luminance	0.0635 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E1A #1A4266

analogous

#661A1C #663E1A #66641A

triadic

#663E1A #1A663E #3E1A66

tetradic

#663E1A #1C661A #1A4266 #641A66

square

#663E1A #1C661A #1A4266 #641A66

split-complementary

#663E1A #1A6664 #1A1C66

monochromatic

#180F06 #35200E #663E1A #975C26 #C87933

Accessibility & contrast

On white

9.26

#663E1A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#663E1A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E1A

9.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E1A	#FFFFFF	#000000	##FFFFFF
##663E1A	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)

#4A4216

Deuteranopia (green-blind)

#544B1A

Tritanopia (blue-blind)

#703536

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663e1a;
/* rgb */ color: rgb(102, 62, 26);
/* oklch */ color: oklch(40.4% 0.075 59.9);

Tailwind

colors: {
  custom: {
    50: '#967358',
    500: '#663e1a',
    950: '#000000',
  },
}

SCSS

$custom: #663e1a;
$custom-light: #967358;
$custom-dark: #000000;

JSON

{
  "hex": "#663e1a",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 26
  },
  "hsl": {
    "h": 28.421,
    "s": 59.375,
    "l": 25.098
  },
  "oklch": {
    "l": 0.40402,
    "c": 0.075,
    "h": 59.9
  },
  "luminance": 0.06345
}

Semantic roles & 50–950 ramp

primary

#663E1A

secondary

#40709C

accent

#98E345

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663E1A

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

Preview Lab → · Contrast checker → · Palette generator →