#663F11#663F11

#663F11 is a dark, moderate orange. Relative luminance 0.064; OKLCH L 40.5% C 0.080 H 65.7°. Best body text is #FFFFFF at 9.19:1 contrast (WCAG AA passes).

Color values

HEX#663F11
RGBrgb(102, 63, 17)
HSLhsl(32, 71%, 23%)
HSVhsv(32, 83%, 40%)
CMYKcmyk(0%, 38.2%, 83.3%, 60%)
CIE-LABlab(30.45, 12.89, 33.43)
CIE-LCHlch(30.45, 35.83, 68.92°)
OKLaboklab(40.52% 0.033 0.0728)
OKLCHoklch(40.52% 0.08 65.7)
XYZxyz(7.3588, 6.4210, 1.3820)
Luminance0.0642 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#663F11 #113866
analogous
#661511 #663F11 #626611
triadic
#663F11 #11663F #3F1166
tetradic
#663F11 #116615 #113866 #661162
square
#663F11 #116615 #113866 #661162
split-complementary
#663F11 #116266 #151166
monochromatic
#1A1004 #321F08 #663F11 #9A5F1A #CF8022

Accessibility & contrast

On white

9.19
#663F11 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.28
#663F11 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #663F11
9.19:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##663F11#FFFFFF#000000##FFFFFF
##663F111.009.192.289.19
#FFFFFF9.191.0021.001.00
#0000002.2821.001.0021.00
##FFFFFF9.191.0021.001.00

Color blindness preview

Protanopia (red-blind)
#4C420A
Deuteranopia (green-blind)
#554B12
Tritanopia (blue-blind)
#703636
Achromatopsia (no color)
#484848

Design tokens & code

CSS
--color: #663f11;
/* rgb */ color: rgb(102, 63, 17);
/* oklch */ color: oklch(40.5% 0.080 65.7);
Tailwind
colors: {
  custom: {
    50: '#967453',
    500: '#663f11',
    950: '#000000',
  },
}
SCSS
$custom: #663f11;
$custom-light: #967453;
$custom-dark: #000000;
JSON
{
  "hex": "#663f11",
  "rgb": {
    "r": 102,
    "g": 63,
    "b": 17
  },
  "hsl": {
    "h": 32.471,
    "s": 71.429,
    "l": 23.333
  },
  "oklch": {
    "l": 0.40517,
    "c": 0.07994,
    "h": 65.7
  },
  "luminance": 0.0642
}

Semantic roles & 50–950 ramp

primary
#663F11
secondary
#35659E
accent
#8CEE3A
background
#F9F7F4
surface
#F2EDE7
border
#CCC8C3
text
#0E0802
muted
#7E7B78

Preview Lab

Preview with #663F11

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

Preview Lab → · Contrast checker → · Palette generator →

#663F11 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva