#663B25#663B25

#663B25 is a dark, moderate orange. Relative luminance 0.061; OKLCH L 40.0% C 0.070 H 47.1°. Best body text is #FFFFFF at 9.47:1 contrast (WCAG AA passes).

Color values

HEX	#663B25
RGB	rgb(102, 59, 37)
HSL	hsl(20, 47%, 27%)
HSV	hsv(20, 64%, 40%)
CMYK	cmyk(0%, 42.2%, 63.7%, 60%)
CIE-LAB	lab(29.63, 16.60, 21.56)
CIE-LCH	lch(29.63, 27.21, 52.39°)
OKLab	oklab(39.96% 0.0475 0.0511)
OKLCH	oklch(39.96% 0.07 47.1)
XYZ	xyz(7.3779, 6.0870, 2.5363)
Luminance	0.0609 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663B25 #255066

analogous

#66252F #663B25 #665C25

triadic

#663B25 #25663B #3B2566

tetradic

#663B25 #2F6625 #255066 #5C2566

square

#663B25 #2F6625 #255066 #5C2566

split-complementary

#663B25 #25665C #252F66

monochromatic

#160D08 #392115 #663B25 #935535 #BD7049

Accessibility & contrast

On white

9.47

#663B25 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#663B25 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663B25

9.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663B25	#FFFFFF	#000000	##FFFFFF
##663B25	1.00	9.47	2.22	9.47
#FFFFFF	9.47	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#474023

Deuteranopia (green-blind)

#514925

Tritanopia (blue-blind)

#6F3336

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #663b25;
/* rgb */ color: rgb(102, 59, 37);
/* oklch */ color: oklch(40.0% 0.070 47.1);

Tailwind

colors: {
  custom: {
    50: '#957160',
    500: '#663b25',
    950: '#000000',
  },
}

SCSS

$custom: #663b25;
$custom-light: #957160;
$custom-dark: #000000;

JSON

{
  "hex": "#663b25",
  "rgb": {
    "r": 102,
    "g": 59,
    "b": 37
  },
  "hsl": {
    "h": 20.308,
    "s": 46.763,
    "l": 27.255
  },
  "oklch": {
    "l": 0.39957,
    "c": 0.06975,
    "h": 47.1
  },
  "luminance": 0.06086
}

Semantic roles & 50–950 ramp

primary

#663B25

secondary

#4E8099

accent

#A9D651

background

#F9F6F5

surface

#F2ECE9

border

#CCC7C5

text

#0E0705

muted

#7E7A79

Preview Lab

Preview with #663B25

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

Preview Lab → · Contrast checker → · Palette generator →