#663A0F#663A0F

#663A0F is a dark, moderate orange. Relative luminance 0.059; OKLCH L 39.5% C 0.083 H 59.9°. Best body text is #FFFFFF at 9.65:1 contrast (WCAG AA passes).

Color values

HEX	#663A0F
RGB	rgb(102, 58, 15)
HSL	hsl(30, 74%, 23%)
HSV	hsv(30, 85%, 40%)
CMYK	cmyk(0%, 43.1%, 85.3%, 60%)
CIE-LAB	lab(29.12, 15.88, 33.10)
CIE-LCH	lch(29.12, 36.71, 64.38°)
OKLab	oklab(39.49% 0.0415 0.0715)
OKLCH	oklch(39.49% 0.083 59.9)
XYZ	xyz(7.0794, 5.8861, 1.2152)
Luminance	0.0588 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663A0F #0F3B66

analogous

#660F10 #663A0F #66650F

triadic

#663A0F #0F663A #3A0F66

tetradic

#663A0F #10660F #0F3B66 #650F66

square

#663A0F #10660F #0F3B66 #650F66

split-complementary

#663A0F #0F6665 #0F1066

monochromatic

#1B0F04 #311C07 #663A0F #9B5817 #D1771F

Accessibility & contrast

On white

9.65

#663A0F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.18

#663A0F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663A0F

9.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663A0F	#FFFFFF	#000000	##FFFFFF
##663A0F	1.00	9.65	2.18	9.65
#FFFFFF	9.65	1.00	21.00	1.00
#000000	2.18	21.00	1.00	21.00
##FFFFFF	9.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473F08

Deuteranopia (green-blind)

#52490F

Tritanopia (blue-blind)

#703032

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #663a0f;
/* rgb */ color: rgb(102, 58, 15);
/* oklch */ color: oklch(39.5% 0.083 59.9);

Tailwind

colors: {
  custom: {
    50: '#977051',
    500: '#663a0f',
    950: '#000000',
  },
}

SCSS

$custom: #663a0f;
$custom-light: #977051;
$custom-dark: #000000;

JSON

{
  "hex": "#663a0f",
  "rgb": {
    "r": 102,
    "g": 58,
    "b": 15
  },
  "hsl": {
    "h": 29.655,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.39485,
    "c": 0.0827,
    "h": 59.9
  },
  "luminance": 0.05885
}

Semantic roles & 50–950 ramp

primary

#663A0F

secondary

#32699F

accent

#95F137

background

#F9F6F4

surface

#F2ECE7

border

#CCC7C3

text

#0E0702

muted

#7E7A78

Preview Lab

Preview with #663A0F

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

Preview Lab → · Contrast checker → · Palette generator →