#661D15#661D15

#661D15 is a dark, moderate red. Relative luminance 0.038; OKLCH L 34.7% C 0.106 H 29.7°. Best body text is #FFFFFF at 11.99:1 contrast (WCAG AA passes).

Color values

HEX#661D15
RGBrgb(102, 29, 21)
HSLhsl(6, 66%, 24%)
HSVhsv(6, 79%, 40%)
CMYKcmyk(0%, 71.6%, 79.4%, 60%)
CIE-LABlab(22.86, 32.21, 23.55)
CIE-LCHlch(22.86, 39.90, 36.17°)
OKLaboklab(34.73% 0.0923 0.0526)
OKLCHoklch(34.73% 0.106 29.7)
XYZxyz(6.0549, 3.7585, 1.1160)
Luminance0.0376 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#661D15 #155E66
analogous
#661536 #661D15 #664615
triadic
#661D15 #15661D #1D1566
tetradic
#661D15 #366615 #155E66 #461566
square
#661D15 #366615 #155E66 #461566
split-complementary
#661D15 #156646 #153666
monochromatic
#190705 #330F0B #661D15 #992B1F #CC3A2A

Accessibility & contrast

On white

11.99
#661D15 on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.75
#661D15 on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #661D15
11.99:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##661D15#FFFFFF#000000##FFFFFF
##661D151.0011.991.7511.99
#FFFFFF11.991.0021.001.00
#0000001.7521.001.0021.00
##FFFFFF11.991.0021.001.00

Color blindness preview

Protanopia (red-blind)
#322C14
Deuteranopia (green-blind)
#443C12
Tritanopia (blue-blind)
#71071C
Achromatopsia (no color)
#373737

Design tokens & code

CSS
--color: #661d15;
/* rgb */ color: rgb(102, 29, 21);
/* oklch */ color: oklch(34.7% 0.106 29.7);
Tailwind
colors: {
  custom: {
    50: '#985e53',
    500: '#661d15',
    950: '#000000',
  },
}
SCSS
$custom: #661d15;
$custom-light: #985e53;
$custom-dark: #000000;
JSON
{
  "hex": "#661d15",
  "rgb": {
    "r": 102,
    "g": 29,
    "b": 21
  },
  "hsl": {
    "h": 5.926,
    "s": 65.854,
    "l": 24.118
  },
  "oklch": {
    "l": 0.3473,
    "c": 0.10628,
    "h": 29.7
  },
  "luminance": 0.03758
}

Semantic roles & 50–950 ramp

primary
#661D15
secondary
#3A939D
accent
#D8E93F
background
#FAF5F4
surface
#F3E9E7
border
#CDC5C3
text
#0F0402
muted
#7F7978

Preview Lab

Preview with #661D15

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

Preview Lab → · Contrast checker → · Palette generator →

#661D15 Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva