#663D1D#663D1D

#663D1D is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.2% C 0.074 H 56.5°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#663D1D
RGB	rgb(102, 61, 29)
HSL	hsl(26, 56%, 26%)
HSV	hsv(26, 72%, 40%)
CMYK	cmyk(0%, 40.2%, 71.6%, 60%)
CIE-LAB	lab(30.04, 14.78, 26.78)
CIE-LCH	lch(30.04, 30.58, 61.11°)
OKLab	oklab(40.24% 0.0405 0.0613)
OKLCH	oklch(40.24% 0.074 56.5)
XYZ	xyz(7.3706, 6.2517, 1.9807)
Luminance	0.0625 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D1D #1D4666

analogous

#661D22 #663D1D #66611D

triadic

#663D1D #1D663D #3D1D66

tetradic

#663D1D #22661D #1D4666 #611D66

square

#663D1D #22661D #1D4666 #611D66

split-complementary

#663D1D #1D6661 #1D2266

monochromatic

#180E07 #36210F #663D1D #96592B #C57638

Accessibility & contrast

On white

9.33

#663D1D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#663D1D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D1D

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D1D	#FFFFFF	#000000	##FFFFFF
##663D1D	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49411A

Deuteranopia (green-blind)

#534A1D

Tritanopia (blue-blind)

#703436

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663d1d;
/* rgb */ color: rgb(102, 61, 29);
/* oklch */ color: oklch(40.2% 0.074 56.5);

Tailwind

colors: {
  custom: {
    50: '#95725a',
    500: '#663d1d',
    950: '#000000',
  },
}

SCSS

$custom: #663d1d;
$custom-light: #95725a;
$custom-dark: #000000;

JSON

{
  "hex": "#663d1d",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 29
  },
  "hsl": {
    "h": 26.301,
    "s": 55.725,
    "l": 25.686
  },
  "oklch": {
    "l": 0.40236,
    "c": 0.07352,
    "h": 56.5
  },
  "luminance": 0.06251
}

Semantic roles & 50–950 ramp

primary

#663D1D

secondary

#44759B

accent

#9DDF49

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #663D1D

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

Preview Lab → · Contrast checker → · Palette generator →