#664C0F#664C0F

#664C0F is a dark, moderate orange. Relative luminance 0.080; OKLCH L 43.3% C 0.082 H 83.6°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX#664C0F
RGBrgb(102, 76, 15)
HSLhsl(42, 74%, 23%)
HSVhsv(42, 85%, 40%)
CMYKcmyk(0%, 25.5%, 85.3%, 60%)
CIE-LABlab(34.04, 4.79, 37.58)
CIE-LCHlch(34.04, 37.88, 82.74°)
OKLaboklab(43.32% 0.0091 0.0812)
OKLCHoklch(43.32% 0.082 83.6)
XYZxyz(8.1507, 8.0288, 1.5723)
Luminance0.0803 (WCAG relative)
Temperaturewarm
Familyorange

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#664C0F #0F2966
analogous
#66200F #664C0F #54660F
triadic
#664C0F #0F664C #4C0F66
tetradic
#664C0F #0F6620 #0F2966 #660F54
square
#664C0F #0F6620 #0F2966 #660F54
split-complementary
#664C0F #0F5466 #200F66
monochromatic
#1B1404 #312407 #664C0F #9B7417 #D19C1F

Accessibility & contrast

On white

8.06
#664C0F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.61
#664C0F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #664C0F
8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##664C0F#FFFFFF#000000##FFFFFF
##664C0F1.008.062.618.06
#FFFFFF8.061.0021.001.00
#0000002.6121.001.0021.00
##FFFFFF8.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#574C03
Deuteranopia (green-blind)
#5D5312
Tritanopia (blue-blind)
#6F4440
Achromatopsia (no color)
#505050

Design tokens & code

CSS
--color: #664c0f;
/* rgb */ color: rgb(102, 76, 15);
/* oklch */ color: oklch(43.3% 0.082 83.6);
Tailwind
colors: {
  custom: {
    50: '#957d53',
    500: '#664c0f',
    950: '#000000',
  },
}
SCSS
$custom: #664c0f;
$custom-light: #957d53;
$custom-dark: #000000;
JSON
{
  "hex": "#664c0f",
  "rgb": {
    "r": 102,
    "g": 76,
    "b": 15
  },
  "hsl": {
    "h": 42.069,
    "s": 74.359,
    "l": 22.941
  },
  "oklch": {
    "l": 0.43317,
    "c": 0.08175,
    "h": 83.6
  },
  "luminance": 0.08028
}

Semantic roles & 50–950 ramp

primary
#664C0F
secondary
#32539F
accent
#6EF137
background
#F9F7F4
surface
#F2EEE8
border
#CCC9C4
text
#0E0903
muted
#7E7B78

Preview Lab

Preview with #664C0F

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

Preview Lab → · Contrast checker → · Palette generator →

#664C0F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva