#663A2A#663A2A

#663A2A is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.9% C 0.068 H 40.6°. Best body text is #FFFFFF at 9.53:1 contrast (WCAG AA passes).

Color values

HEX	#663A2A
RGB	rgb(102, 58, 42)
HSL	hsl(16, 42%, 28%)
HSV	hsv(16, 59%, 40%)
CMYK	cmyk(0%, 43.1%, 58.8%, 60%)
CIE-LAB	lab(29.46, 17.66, 18.23)
CIE-LCH	lch(29.46, 25.38, 45.91°)
OKLab	oklab(39.85% 0.0515 0.0442)
OKLCH	oklch(39.85% 0.068 40.6)
XYZ	xyz(7.4110, 6.0188, 2.9615)
Luminance	0.0602 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A2A #2A5666

analogous

#662A38 #663A2A #66582A

triadic

#663A2A #2A663A #3A2A66

tetradic

#663A2A #38662A #2A5666 #582A66

square

#663A2A #38662A #2A5666 #582A66

split-complementary

#663A2A #2A6658 #2A3866

monochromatic

#160C09 #3B2118 #663A2A #91533C #B86E52

Accessibility & contrast

On white

9.53

#663A2A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663A2A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A2A

9.53:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A2A	#FFFFFF	#000000	##FFFFFF
##663A2A	1.00	9.53	2.20	9.53
#FFFFFF	9.53	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.53	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#454029

Deuteranopia (green-blind)

#50492A

Tritanopia (blue-blind)

#6F3236

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663a2a;
/* rgb */ color: rgb(102, 58, 42);
/* oklch */ color: oklch(39.9% 0.068 40.6);

Tailwind

colors: {
  custom: {
    50: '#957063',
    500: '#663a2a',
    950: '#000000',
  },
}

SCSS

$custom: #663a2a;
$custom-light: #957063;
$custom-dark: #000000;

JSON

{
  "hex": "#663a2a",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 42
  },
  "hsl": {
    "h": 16,
    "s": 41.667,
    "l": 28.235
  },
  "oklch": {
    "l": 0.39853,
    "c": 0.06782,
    "h": 40.6
  },
  "luminance": 0.06018
}

Semantic roles & 50–950 ramp

primary

#663A2A

secondary

#548698

accent

#B1D156

background

#F9F6F5

surface

#F2ECEA

border

#CCC7C6

text

#0E0705

muted

#7E7A79

Preview Lab

Preview with #663A2A

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

Preview Lab → · Contrast checker → · Palette generator →