#663E1F#663E1F

#663E1F is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.5% C 0.072 H 56.6°. Best body text is #FFFFFF at 9.24:1 contrast (WCAG AA passes).

Color values

HEX	#663E1F
RGB	rgb(102, 62, 31)
HSL	hsl(26, 53%, 26%)
HSV	hsv(26, 70%, 40%)
CMYK	cmyk(0%, 39.2%, 69.6%, 60%)
CIE-LAB	lab(30.33, 14.30, 25.96)
CIE-LCH	lch(30.33, 29.63, 61.15°)
OKLab	oklab(40.47% 0.0395 0.0599)
OKLCH	oklch(40.47% 0.072 56.6)
XYZ	xyz(7.4500, 6.3697, 2.1332)
Luminance	0.0637 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663E1F #1F4766

analogous

#661F23 #663E1F #66611F

triadic

#663E1F #1F663E #3E1F66

tetradic

#663E1F #23661F #1F4766 #611F66

square

#663E1F #23661F #1F4766 #611F66

split-complementary

#663E1F #1F6661 #1F2366

monochromatic

#170E07 #372111 #663E1F #955B2D #C4773C

Accessibility & contrast

On white

9.24

#663E1F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.27

#663E1F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663E1F

9.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663E1F	#FFFFFF	#000000	##FFFFFF
##663E1F	1.00	9.24	2.27	9.24
#FFFFFF	9.24	1.00	21.00	1.00
#000000	2.27	21.00	1.00	21.00
##FFFFFF	9.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4A421C

Deuteranopia (green-blind)

#534B1F

Tritanopia (blue-blind)

#703637

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #663e1f;
/* rgb */ color: rgb(102, 62, 31);
/* oklch */ color: oklch(40.5% 0.072 56.6);

Tailwind

colors: {
  custom: {
    50: '#95735c',
    500: '#663e1f',
    950: '#000000',
  },
}

SCSS

$custom: #663e1f;
$custom-light: #95735c;
$custom-dark: #000000;

JSON

{
  "hex": "#663e1f",
  "rgb": {
    "r": 102,
    "g": 62,
    "b": 31
  },
  "hsl": {
    "h": 26.197,
    "s": 53.383,
    "l": 26.078
  },
  "oklch": {
    "l": 0.40467,
    "c": 0.07173,
    "h": 56.6
  },
  "luminance": 0.06369
}

Semantic roles & 50–950 ramp

primary

#663E1F

secondary

#46769A

accent

#9DDD4B

background

#F9F7F5

surface

#F2EDE9

border

#CCC8C5

text

#0E0804

muted

#7E7B79

Preview Lab

Preview with #663E1F

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

Preview Lab → · Contrast checker → · Palette generator →