#663B10#663B10

#663B10 is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.082 H 60.8°. Best body text is #FFFFFF at 9.55:1 contrast (WCAG AA passes).

Color values

HEX	#663B10
RGB	rgb(102, 59, 16)
HSL	hsl(30, 73%, 23%)
HSV	hsv(30, 84%, 40%)
CMYK	cmyk(0%, 42.2%, 84.3%, 60%)
CIE-LAB	lab(29.39, 15.30, 32.89)
CIE-LCH	lch(29.39, 36.28, 65.05°)
OKLab	oklab(39.69% 0.0399 0.0714)
OKLCH	oklch(39.69% 0.082 60.8)
XYZ	xyz(7.1376, 5.9909, 1.2706)
Luminance	0.0599 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B10 #103B66

analogous

#661010 #663B10 #666610

triadic

#663B10 #10663B #3B1066

tetradic

#663B10 #106610 #103B66 #661066

square

#663B10 #106610 #103B66 #661066

split-complementary

#663B10 #106666 #101066

monochromatic

#1A0F04 #311C08 #663B10 #9B5A18 #D07821

Accessibility & contrast

On white

9.55

#663B10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B10

9.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B10	#FFFFFF	#000000	##FFFFFF
##663B10	1.00	9.55	2.20	9.55
#FFFFFF	9.55	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F09

Deuteranopia (green-blind)

#524910

Tritanopia (blue-blind)

#703132

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b10;
/* rgb */ color: rgb(102, 59, 16);
/* oklch */ color: oklch(39.7% 0.082 60.8);

Tailwind

colors: {
  custom: {
    50: '#967152',
    500: '#663b10',
    950: '#000000',
  },
}

SCSS

$custom: #663b10;
$custom-light: #967152;
$custom-dark: #000000;

JSON

{
  "hex": "#663b10",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 16
  },
  "hsl": {
    "h": 30,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.39693,
    "c": 0.08179,
    "h": 60.8
  },
  "luminance": 0.0599
}

Semantic roles & 50–950 ramp

primary

#663B10

secondary

#33699E

accent

#94F038

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #663B10

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

Preview Lab → · Contrast checker → · Palette generator →