#663A1D#663A1D

#663A1D is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.6% C 0.075 H 52.2°. Best body text is #FFFFFF at 9.60:1 contrast (WCAG AA passes).

Color values

HEX	#663A1D
RGB	rgb(102, 58, 29)
HSL	hsl(24, 56%, 26%)
HSV	hsv(24, 72%, 40%)
CMYK	cmyk(0%, 43.1%, 71.6%, 60%)
CIE-LAB	lab(29.26, 16.61, 25.90)
CIE-LCH	lch(29.26, 30.77, 57.32°)
OKLab	oklab(39.64% 0.0461 0.0595)
OKLCH	oklch(39.64% 0.075 52.2)
XYZ	xyz(7.2149, 5.9403, 1.9288)
Luminance	0.0594 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A1D #1D4966

analogous

#661D24 #663A1D #665E1D

triadic

#663A1D #1D663A #3A1D66

tetradic

#663A1D #24661D #1D4966 #5E1D66

square

#663A1D #24661D #1D4966 #5E1D66

split-complementary

#663A1D #1D665E #1D2466

monochromatic

#180E07 #361F0F #663A1D #96552B #C57038

Accessibility & contrast

On white

9.60

#663A1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#663A1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A1D

9.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A1D	#FFFFFF	#000000	##FFFFFF
##663A1D	1.00	9.60	2.19	9.60
#FFFFFF	9.60	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F1A

Deuteranopia (green-blind)

#51491D

Tritanopia (blue-blind)

#703133

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663a1d;
/* rgb */ color: rgb(102, 58, 29);
/* oklch */ color: oklch(39.6% 0.075 52.2);

Tailwind

colors: {
  custom: {
    50: '#96705a',
    500: '#663a1d',
    950: '#000000',
  },
}

SCSS

$custom: #663a1d;
$custom-light: #96705a;
$custom-dark: #000000;

JSON

{
  "hex": "#663a1d",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 29
  },
  "hsl": {
    "h": 23.836,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.39636,
    "c": 0.0752,
    "h": 52.2
  },
  "luminance": 0.0594
}

Semantic roles & 50–950 ramp

primary

#663A1D

secondary

#44789B

accent

#A3DF49

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0704

muted

#7E7A79

Preview Lab

Preview with #663A1D

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

Preview Lab → · Contrast checker → · Palette generator →