#663B1E#663B1E

#663B1E is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.074 H 52.9°. Best body text is #FFFFFF at 9.51:1 contrast (WCAG AA passes).

Color values

HEX	#663B1E
RGB	rgb(102, 59, 30)
HSL	hsl(24, 55%, 26%)
HSV	hsv(24, 71%, 40%)
CMYK	cmyk(0%, 42.2%, 70.6%, 60%)
CIE-LAB	lab(29.53, 16.07, 25.63)
CIE-LCH	lch(29.53, 30.25, 57.91°)
OKLab	oklab(39.85% 0.0446 0.059)
OKLCH	oklch(39.85% 0.074 52.9)
XYZ	xyz(7.2784, 6.0472, 2.0120)
Luminance	0.0605 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B1E #1E4966

analogous

#661E25 #663B1E #665F1E

triadic

#663B1E #1E663B #3B1E66

tetradic

#663B1E #25661E #1E4966 #5F1E66

square

#663B1E #25661E #1E4966 #5F1E66

split-complementary

#663B1E #1E665F #1E2566

monochromatic

#180E07 #372010 #663B1E #95562C #C5723A

Accessibility & contrast

On white

9.51

#663B1E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.21

#663B1E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B1E

9.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B1E	#FFFFFF	#000000	##FFFFFF
##663B1E	1.00	9.51	2.21	9.51
#FFFFFF	9.51	1.00	21.00	1.00
#000000	2.21	21.00	1.00	21.00
##FFFFFF	9.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#47401B

Deuteranopia (green-blind)

#52491E

Tritanopia (blue-blind)

#703234

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663b1e;
/* rgb */ color: rgb(102, 59, 30);
/* oklch */ color: oklch(39.8% 0.074 52.9);

Tailwind

colors: {
  custom: {
    50: '#95715b',
    500: '#663b1e',
    950: '#000000',
  },
}

SCSS

$custom: #663b1e;
$custom-light: #95715b;
$custom-dark: #000000;

JSON

{
  "hex": "#663b1e",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 30
  },
  "hsl": {
    "h": 24.167,
    "s": 54.545,
    "l": 25.882
  },
  "oklch": {
    "l": 0.39848,
    "c": 0.07398,
    "h": 52.9
  },
  "luminance": 0.06046
}

Semantic roles & 50–950 ramp

primary

#663B1E

secondary

#45789B

accent

#A2DE4A

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0704

muted

#7E7A79

Preview Lab

Preview with #663B1E

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

Preview Lab → · Contrast checker → · Palette generator →