#663B0F#663B0F

#663B0F is a dark, moderate orange. Relative luminance 0.060; OKLCH L 39.7% C 0.082 H 61.2°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#663B0F
RGB	rgb(102, 59, 15)
HSL	hsl(30, 74%, 23%)
HSV	hsv(30, 85%, 40%)
CMYK	cmyk(0%, 42.2%, 85.3%, 60%)
CIE-LAB	lab(29.38, 15.26, 33.34)
CIE-LCH	lch(29.38, 36.67, 65.40°)
OKLab	oklab(39.68% 0.0397 0.0721)
OKLCH	oklch(39.68% 0.082 61.2)
XYZ	xyz(7.1303, 5.9879, 1.2321)
Luminance	0.0599 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B0F #0F3A66

analogous

#66100F #663B0F #65660F

triadic

#663B0F #0F663B #3B0F66

tetradic

#663B0F #0F6610 #0F3A66 #660F65

square

#663B0F #0F6610 #0F3A66 #660F65

split-complementary

#663B0F #0F6566 #100F66

monochromatic

#1B0F04 #311C07 #663B0F #9B5A17 #D1791F

Accessibility & contrast

On white

9.56

#663B0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#663B0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B0F

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B0F	#FFFFFF	#000000	##FFFFFF
##663B0F	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#483F08

Deuteranopia (green-blind)

#52490F

Tritanopia (blue-blind)

#703132

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663b0f;
/* rgb */ color: rgb(102, 59, 15);
/* oklch */ color: oklch(39.7% 0.082 61.2);

Tailwind

colors: {
  custom: {
    50: '#967151',
    500: '#663b0f',
    950: '#000000',
  },
}

SCSS

$custom: #663b0f;
$custom-light: #967151;
$custom-dark: #000000;

JSON

{
  "hex": "#663b0f",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 15
  },
  "hsl": {
    "h": 30.345,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.39685,
    "c": 0.08226,
    "h": 61.2
  },
  "luminance": 0.05987
}

Semantic roles & 50–950 ramp

primary

#663B0F

secondary

#32689F

accent

#93F137

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #663B0F

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

Preview Lab → · Contrast checker → · Palette generator →