#663F18#663F18

#663F18 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.6% C 0.076 H 62.5°. Best body text is #FFFFFF at 9.17:1 contrast (WCAG AA passes).

Color values

HEX	#663F18
RGB	rgb(102, 63, 24)
HSL	hsl(30, 62%, 25%)
HSV	hsv(30, 76%, 40%)
CMYK	cmyk(0%, 38.2%, 76.5%, 60%)
CIE-LAB	lab(30.51, 13.23, 30.04)
CIE-LCH	lch(30.51, 32.82, 66.22°)
OKLab	oklab(40.59% 0.0351 0.0673)
OKLCH	oklch(40.59% 0.076 62.5)
XYZ	xyz(7.4224, 6.4465, 1.7174)
Luminance	0.0645 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F18 #183F66

analogous

#661818 #663F18 #666618

triadic

#663F18 #18663F #3F1866

tetradic

#663F18 #186618 #183F66 #661866

square

#663F18 #186618 #183F66 #661866

split-complementary

#663F18 #186666 #181866

monochromatic

#190F06 #34200C #663F18 #985E24 #C97C2F

Accessibility & contrast

On white

9.17

#663F18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#663F18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F18

9.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F18	#FFFFFF	#000000	##FFFFFF
##663F18	1.00	9.17	2.29	9.17
#FFFFFF	9.17	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B4213

Deuteranopia (green-blind)

#544B18

Tritanopia (blue-blind)

#703637

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #663f18;
/* rgb */ color: rgb(102, 63, 24);
/* oklch */ color: oklch(40.6% 0.076 62.5);

Tailwind

colors: {
  custom: {
    50: '#967457',
    500: '#663f18',
    950: '#000000',
  },
}

SCSS

$custom: #663f18;
$custom-light: #967457;
$custom-dark: #000000;

JSON

{
  "hex": "#663f18",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 24
  },
  "hsl": {
    "h": 30,
    "s": 61.905,
    "l": 24.706
  },
  "oklch": {
    "l": 0.40585,
    "c": 0.07589,
    "h": 62.5
  },
  "luminance": 0.06446
}

Semantic roles & 50–950 ramp

primary

#663F18

secondary

#3E6D9C

accent

#94E543

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663F18

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

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