#663D18#663D18

#663D18 is a dark, moderate orange. Relative luminance 0.062; OKLCH L 40.2% C 0.077 H 59.6°. Best body text is #FFFFFF at 9.35:1 contrast (WCAG AA passes).

Color values

HEX	#663D18
RGB	rgb(102, 61, 24)
HSL	hsl(28, 62%, 25%)
HSV	hsv(28, 76%, 40%)
CMYK	cmyk(0%, 40.2%, 76.5%, 60%)
CIE-LAB	lab(29.98, 14.47, 29.48)
CIE-LCH	lch(29.98, 32.84, 63.86°)
OKLab	oklab(40.17% 0.0387 0.0661)
OKLCH	oklch(40.17% 0.077 59.6)
XYZ	xyz(7.3137, 6.2289, 1.6811)
Luminance	0.0623 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D18 #184166

analogous

#66181A #663D18 #666418

triadic

#663D18 #18663D #3D1866

tetradic

#663D18 #1A6618 #184166 #641866

square

#663D18 #1A6618 #184166 #641866

split-complementary

#663D18 #186664 #181A66

monochromatic

#190F06 #341F0C #663D18 #985B24 #C9782F

Accessibility & contrast

On white

9.35

#663D18 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#663D18 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D18

9.35:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D18	#FFFFFF	#000000	##FFFFFF
##663D18	1.00	9.35	2.25	9.35
#FFFFFF	9.35	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.35	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#494114

Deuteranopia (green-blind)

#534A18

Tritanopia (blue-blind)

#703435

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663d18;
/* rgb */ color: rgb(102, 61, 24);
/* oklch */ color: oklch(40.2% 0.077 59.6);

Tailwind

colors: {
  custom: {
    50: '#967257',
    500: '#663d18',
    950: '#000000',
  },
}

SCSS

$custom: #663d18;
$custom-light: #967257;
$custom-dark: #000000;

JSON

{
  "hex": "#663d18",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 24
  },
  "hsl": {
    "h": 28.462,
    "s": 61.905,
    "l": 24.706
  },
  "oklch": {
    "l": 0.40175,
    "c": 0.07663,
    "h": 59.6
  },
  "luminance": 0.06228
}

Semantic roles & 50–950 ramp

primary

#663D18

secondary

#3E6F9C

accent

#98E543

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0803

muted

#7E7B78

Preview Lab

Preview with #663D18

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

Preview Lab → · Contrast checker → · Palette generator →