#663D1F#663D1F

#663D1F is a dark, moderate orange. Relative luminance 0.063; OKLCH L 40.3% C 0.072 H 55.1°. Best body text is #FFFFFF at 9.32:1 contrast (WCAG AA passes).

Color values

HEX	#663D1F
RGB	rgb(102, 61, 31)
HSL	hsl(25, 53%, 26%)
HSV	hsv(25, 70%, 40%)
CMYK	cmyk(0%, 40.2%, 69.6%, 60%)
CIE-LAB	lab(30.06, 14.91, 25.66)
CIE-LCH	lch(30.06, 29.68, 59.83°)
OKLab	oklab(40.26% 0.0413 0.0593)
OKLCH	oklch(40.26% 0.072 55.1)
XYZ	xyz(7.3961, 6.2619, 2.1152)
Luminance	0.0626 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663D1F #1F4866

analogous

#661F24 #663D1F #66601F

triadic

#663D1F #1F663D #3D1F66

tetradic

#663D1F #24661F #1F4866 #601F66

square

#663D1F #24661F #1F4866 #601F66

split-complementary

#663D1F #1F6660 #1F2466

monochromatic

#170E07 #372111 #663D1F #95592D #C4753C

Accessibility & contrast

On white

9.32

#663D1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#663D1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663D1F

9.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663D1F	#FFFFFF	#000000	##FFFFFF
##663D1F	1.00	9.32	2.25	9.32
#FFFFFF	9.32	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49411C

Deuteranopia (green-blind)

#534A1F

Tritanopia (blue-blind)

#703536

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663d1f;
/* rgb */ color: rgb(102, 61, 31);
/* oklch */ color: oklch(40.3% 0.072 55.1);

Tailwind

colors: {
  custom: {
    50: '#95725c',
    500: '#663d1f',
    950: '#000000',
  },
}

SCSS

$custom: #663d1f;
$custom-light: #95725c;
$custom-dark: #000000;

JSON

{
  "hex": "#663d1f",
  "rgb": {
    "r": 102,
    "g": 61,
    "b": 31
  },
  "hsl": {
    "h": 25.352,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.40263,
    "c": 0.07223,
    "h": 55.1
  },
  "luminance": 0.06261
}

Semantic roles & 50–950 ramp

primary

#663D1F

secondary

#46779A

accent

#9FDD4B

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #663D1F

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

Preview Lab → · Contrast checker → · Palette generator →