#663F10#663F10

#663F10 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.5% C 0.080 H 66.0°. Best body text is #FFFFFF at 9.20:1 contrast (WCAG AA passes).

Color values

HEX	#663F10
RGB	rgb(102, 63, 16)
HSL	hsl(33, 73%, 23%)
HSV	hsv(33, 84%, 40%)
CMYK	cmyk(0%, 38.2%, 84.3%, 60%)
CIE-LAB	lab(30.44, 12.84, 33.88)
CIE-LCH	lch(30.44, 36.23, 69.24°)
OKLab	oklab(40.51% 0.0327 0.0735)
OKLCH	oklch(40.51% 0.08 66)
XYZ	xyz(7.3511, 6.4179, 1.3418)
Luminance	0.0642 (WCAG relative)
Temperature	warm
Family	orange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#663F10 #103766

analogous

#661410 #663F10 #626610

triadic

#663F10 #10663F #3F1066

tetradic

#663F10 #106614 #103766 #661062

square

#663F10 #106614 #103766 #661062

split-complementary

#663F10 #106266 #141066

monochromatic

#1A1004 #311E08 #663F10 #9B6018 #D08021

Accessibility & contrast

On white

9.20

#663F10 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.28

#663F10 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F10

9.20:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##663F10	#FFFFFF	#000000	##FFFFFF
##663F10	1.00	9.20	2.28	9.20
#FFFFFF	9.20	1.00	21.00	1.00
#000000	2.28	21.00	1.00	21.00
##FFFFFF	9.20	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C4208

Deuteranopia (green-blind)

#554B11

Tritanopia (blue-blind)

#703636

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #663f10;
/* rgb */ color: rgb(102, 63, 16);
/* oklch */ color: oklch(40.5% 0.080 66.0);

Tailwind

colors: {
  custom: {
    50: '#967452',
    500: '#663f10',
    950: '#000000',
  },
}

SCSS

$custom: #663f10;
$custom-light: #967452;
$custom-dark: #000000;

JSON

{
  "hex": "#663f10",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 16
  },
  "hsl": {
    "h": 32.791,
    "s": 72.881,
    "l": 23.137
  },
  "oklch": {
    "l": 0.40509,
    "c": 0.08045,
    "h": 66
  },
  "luminance": 0.06417
}

Semantic roles & 50–950 ramp

primary

#663F10

secondary

#33649E

accent

#8BF038

background

#F9F7F4

surface

#F2EDE7

border

#CCC8C3

text

#0E0802

muted

#7E7B78

Preview Lab

Preview with #663F10

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

Preview Lab → · Contrast checker → · Palette generator →