#663C1D#663C1D

#663C1D is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.074 H 55.1°. Best body text is #FFFFFF at 9.42:1 contrast (WCAG AA passes).

Color values

HEX	#663C1D
RGB	rgb(102, 60, 29)
HSL	hsl(25, 56%, 26%)
HSV	hsv(25, 72%, 40%)
CMYK	cmyk(0%, 41.2%, 71.6%, 60%)
CIE-LAB	lab(29.78, 15.39, 26.48)
CIE-LCH	lch(29.78, 30.63, 59.84°)
OKLab	oklab(40.03% 0.0424 0.0607)
OKLCH	oklch(40.03% 0.074 55.1)
XYZ	xyz(7.3177, 6.1459, 1.9631)
Luminance	0.0614 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663C1D #1D4766

analogous

#661D23 #663C1D #66601D

triadic

#663C1D #1D663C #3C1D66

tetradic

#663C1D #23661D #1D4766 #601D66

square

#663C1D #23661D #1D4766 #601D66

split-complementary

#663C1D #1D6660 #1D2366

monochromatic

#180E07 #36200F #663C1D #96582B #C57438

Accessibility & contrast

On white

9.42

#663C1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#663C1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663C1D

9.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663C1D	#FFFFFF	#000000	##FFFFFF
##663C1D	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)

#48401A

Deuteranopia (green-blind)

#524A1D

Tritanopia (blue-blind)

#703335

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663c1d;
/* rgb */ color: rgb(102, 60, 29);
/* oklch */ color: oklch(40.0% 0.074 55.1);

Tailwind

colors: {
  custom: {
    50: '#95725a',
    500: '#663c1d',
    950: '#000000',
  },
}

SCSS

$custom: #663c1d;
$custom-light: #95725a;
$custom-dark: #000000;

JSON

{
  "hex": "#663c1d",
  "rgb": {
    "r": 102,
    "g": 60,
    "b": 29
  },
  "hsl": {
    "h": 25.479,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.40034,
    "c": 0.07403,
    "h": 55.1
  },
  "luminance": 0.06145
}

Semantic roles & 50–950 ramp

primary

#663C1D

secondary

#44769B

accent

#9FDF49

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #663C1D

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

Preview Lab → · Contrast checker → · Palette generator →