#663F2D#663F2D

#663F2D is a dark, moderate orange. Relative luminance 0.066; OKLCH L 40.9% C 0.062 H 45.3°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#663F2D
RGB	rgb(102, 63, 45)
HSL	hsl(19, 39%, 29%)
HSV	hsv(19, 56%, 40%)
CMYK	cmyk(0%, 38.2%, 55.9%, 60%)
CIE-LAB	lab(30.81, 14.89, 18.07)
CIE-LCH	lch(30.81, 23.42, 50.53°)
OKLab	oklab(40.91% 0.0435 0.044)
OKLCH	oklch(40.91% 0.062 45.3)
XYZ	xyz(7.7311, 6.5699, 3.3431)
Luminance	0.0657 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F2D #2D5466

analogous

#662D38 #663F2D #665C2D

triadic

#663F2D #2D663F #3F2D66

tetradic

#663F2D #38662D #2D5466 #5C2D66

square

#663F2D #38662D #2D5466 #5C2D66

split-complementary

#663F2D #2D665C #2D3866

monochromatic

#150D09 #3C251A #663F2D #905940 #B57658

Accessibility & contrast

On white

9.08

#663F2D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#663F2D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F2D

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F2D	#FFFFFF	#000000	##FFFFFF
##663F2D	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#49432C

Deuteranopia (green-blind)

#534C2D

Tritanopia (blue-blind)

#6F383A

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #663f2d;
/* rgb */ color: rgb(102, 63, 45);
/* oklch */ color: oklch(40.9% 0.062 45.3);

Tailwind

colors: {
  custom: {
    50: '#947466',
    500: '#663f2d',
    950: '#000000',
  },
}

SCSS

$custom: #663f2d;
$custom-light: #947466;
$custom-dark: #000000;

JSON

{
  "hex": "#663f2d",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 45
  },
  "hsl": {
    "h": 18.947,
    "s": 38.776,
    "l": 28.824
  },
  "oklch": {
    "l": 0.40908,
    "c": 0.06189,
    "h": 45.3
  },
  "luminance": 0.06569
}

Semantic roles & 50–950 ramp

primary

#663F2D

secondary

#578398

accent

#AACF59

background

#F9F7F6

surface

#F2EDEB

border

#CCC8C6

text

#0D0806

muted

#7E7B7A

Preview Lab

Preview with #663F2D

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

Preview Lab → · Contrast checker → · Palette generator →