#663B2C#663B2C

#663B2C is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.1% C 0.066 H 39.9°. Best body text is #FFFFFF at 9.43:1 contrast (WCAG AA passes).

Color values

HEX	#663B2C
RGB	rgb(102, 59, 44)
HSL	hsl(16, 40%, 29%)
HSV	hsv(16, 57%, 40%)
CMYK	cmyk(0%, 42.2%, 56.9%, 60%)
CIE-LAB	lab(29.75, 17.24, 17.34)
CIE-LCH	lch(29.75, 24.46, 45.17°)
OKLab	oklab(40.09% 0.0505 0.0423)
OKLCH	oklch(40.09% 0.066 39.9)
XYZ	xyz(7.4986, 6.1353, 3.1717)
Luminance	0.0614 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B2C #2C5766

analogous

#662C3A #663B2C #66582C

triadic

#663B2C #2C663B #3B2C66

tetradic

#663B2C #3A662C #2C5766 #582C66

square

#663B2C #3A662C #2C5766 #582C66

split-complementary

#663B2C #2C6658 #2C3A66

monochromatic

#150C09 #3B221A #663B2C #91543E #B66F56

Accessibility & contrast

On white

9.43

#663B2C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#663B2C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B2C

9.43:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B2C	#FFFFFF	#000000	##FFFFFF
##663B2C	1.00	9.43	2.23	9.43
#FFFFFF	9.43	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.43	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#46412B

Deuteranopia (green-blind)

#504A2C

Tritanopia (blue-blind)

#6F3437

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663b2c;
/* rgb */ color: rgb(102, 59, 44);
/* oklch */ color: oklch(40.1% 0.066 39.9);

Tailwind

colors: {
  custom: {
    50: '#947165',
    500: '#663b2c',
    950: '#000000',
  },
}

SCSS

$custom: #663b2c;
$custom-light: #947165;
$custom-dark: #000000;

JSON

{
  "hex": "#663b2c",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 44
  },
  "hsl": {
    "h": 15.517,
    "s": 39.726,
    "l": 28.627
  },
  "oklch": {
    "l": 0.40089,
    "c": 0.06587,
    "h": 39.9
  },
  "luminance": 0.06135
}

Semantic roles & 50–950 ramp

primary

#663B2C

secondary

#568798

accent

#B1D058

background

#F9F6F6

surface

#F2ECEB

border

#CCC7C6

text

#0E0705

muted

#7E7A7A

Preview Lab

Preview with #663B2C

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

Preview Lab → · Contrast checker → · Palette generator →