#663B16#663B16

#663B16 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.8% C 0.079 H 58.0°. Best body text is #FFFFFF at 9.54:1 contrast (WCAG AA passes).

Color values

HEX	#663B16
RGB	rgb(102, 59, 22)
HSL	hsl(28, 65%, 24%)
HSV	hsv(28, 78%, 40%)
CMYK	cmyk(0%, 42.2%, 78.4%, 60%)
CIE-LAB	lab(29.44, 15.58, 29.97)
CIE-LCH	lch(29.44, 33.78, 62.53°)
OKLab	oklab(39.75% 0.0417 0.0667)
OKLCH	oklch(39.75% 0.079 58)
XYZ	xyz(7.1889, 6.0114, 1.5406)
Luminance	0.0601 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B16 #164166

analogous

#661619 #663B16 #666316

triadic

#663B16 #16663B #3B1666

tetradic

#663B16 #196616 #164166 #631666

square

#663B16 #196616 #164166 #631666

split-complementary

#663B16 #166663 #161966

monochromatic

#190F05 #341E0B #663B16 #985821 #CB752C

Accessibility & contrast

On white

9.54

#663B16 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B16 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B16

9.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B16	#FFFFFF	#000000	##FFFFFF
##663B16	1.00	9.54	2.20	9.54
#FFFFFF	9.54	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F11

Deuteranopia (green-blind)

#524916

Tritanopia (blue-blind)

#703233

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b16;
/* rgb */ color: rgb(102, 59, 22);
/* oklch */ color: oklch(39.8% 0.079 58.0);

Tailwind

colors: {
  custom: {
    50: '#967155',
    500: '#663b16',
    950: '#000000',
  },
}

SCSS

$custom: #663b16;
$custom-light: #967155;
$custom-dark: #000000;

JSON

{
  "hex": "#663b16",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 22
  },
  "hsl": {
    "h": 27.75,
    "s": 64.516,
    "l": 24.314
  },
  "oklch": {
    "l": 0.3975,
    "c": 0.07869,
    "h": 58
  },
  "luminance": 0.06011
}

Semantic roles & 50–950 ramp

primary

#663B16

secondary

#3B709D

accent

#9AE840

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0703

muted

#7E7A78

Preview Lab

Preview with #663B16

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

Preview Lab → · Contrast checker → · Palette generator →