#663F17#663F17

#663F17 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.6% C 0.077 H 63.0°. Best body text is #FFFFFF at 9.18:1 contrast (WCAG AA passes).

Color values

HEX	#663F17
RGB	rgb(102, 63, 23)
HSL	hsl(30, 63%, 25%)
HSV	hsv(30, 77%, 40%)
CMYK	cmyk(0%, 38.2%, 77.5%, 60%)
CIE-LAB	lab(30.50, 13.18, 30.55)
CIE-LCH	lch(30.50, 33.27, 66.67°)
OKLab	oklab(40.57% 0.0348 0.0682)
OKLCH	oklch(40.57% 0.077 63)
XYZ	xyz(7.4122, 6.4424, 1.6636)
Luminance	0.0644 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F17 #173E66

analogous

#661817 #663F17 #666617

triadic

#663F17 #17663F #3F1766

tetradic

#663F17 #176618 #173E66 #661766

square

#663F17 #176618 #173E66 #661766

split-complementary

#663F17 #176666 #181766

monochromatic

#190F06 #34200C #663F17 #985E22 #CA7D2E

Accessibility & contrast

On white

9.18

#663F17 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#663F17 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F17

9.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F17	#FFFFFF	#000000	##FFFFFF
##663F17	1.00	9.18	2.29	9.18
#FFFFFF	9.18	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4212

Deuteranopia (green-blind)

#544B18

Tritanopia (blue-blind)

#703637

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #663f17;
/* rgb */ color: rgb(102, 63, 23);
/* oklch */ color: oklch(40.6% 0.077 63.0);

Tailwind

colors: {
  custom: {
    50: '#967456',
    500: '#663f17',
    950: '#000000',
  },
}

SCSS

$custom: #663f17;
$custom-light: #967456;
$custom-dark: #000000;

JSON

{
  "hex": "#663f17",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 23
  },
  "hsl": {
    "h": 30.38,
    "s": 63.2,
    "l": 24.51
  },
  "oklch": {
    "l": 0.40574,
    "c": 0.07652,
    "h": 63
  },
  "luminance": 0.06442
}

Semantic roles & 50–950 ramp

primary

#663F17

secondary

#3C6C9C

accent

#93E642

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663F17

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

Preview Lab → · Contrast checker → · Palette generator →