#A1311F#A1311F

#A1311F is a mid, vivid red. Relative luminance 0.099; OKLCH L 47.9% C 0.151 H 31.8°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX#A1311F
RGBrgb(161, 49, 31)
HSLhsl(8, 68%, 38%)
HSVhsv(8, 81%, 63%)
CMYKcmyk(0%, 69.6%, 80.7%, 36.9%)
CIE-LABlab(37.62, 45.23, 36.70)
CIE-LCHlch(37.62, 58.25, 39.06°)
OKLaboklab(47.95% 0.1282 0.0795)
OKLCHoklch(47.95% 0.151 31.8)
XYZxyz(16.0454, 9.8750, 2.3573)
Luminance0.0987 (WCAG relative)
Temperaturewarm
Familyred

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#A1311F #1F8FA1
analogous
#A11F4E #A1311F #A1721F
triadic
#A1311F #1FA131 #311FA1
tetradic
#A1311F #4EA11F #1F8FA1 #721FA1
square
#A1311F #4EA11F #1F8FA1 #721FA1
split-complementary
#A1311F #1FA172 #1F4EA1
monochromatic
#3A120B #6E2115 #A1311F #D44129 #DF6D5B

Accessibility & contrast

On white

7.06
#A1311F on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

2.97
#A1311F on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1311F
7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##A1311F#FFFFFF#000000##FFFFFF
##A1311F1.007.062.977.06
#FFFFFF7.061.0021.001.00
#0000002.9721.001.0021.00
##FFFFFF7.061.0021.001.00

Color blindness preview

Protanopia (red-blind)
#52491C
Deuteranopia (green-blind)
#6D621A
Tritanopia (blue-blind)
#B2092E
Achromatopsia (no color)
#585858

Design tokens & code

CSS
--color: #a1311f;
/* rgb */ color: rgb(161, 49, 31);
/* oklch */ color: oklch(47.9% 0.151 31.8);
Tailwind
colors: {
  custom: {
    50: '#c5705c',
    500: '#a1311f',
    950: '#000000',
  },
}
SCSS
$custom: #a1311f;
$custom-light: #c5705c;
$custom-dark: #000000;
JSON
{
  "hex": "#a1311f",
  "rgb": {
    "r": 161,
    "g": 49,
    "b": 31
  },
  "hsl": {
    "h": 8.308,
    "s": 67.708,
    "l": 37.647
  },
  "oklch": {
    "l": 0.4795,
    "c": 0.15087,
    "h": 31.8
  },
  "luminance": 0.09873
}

Semantic roles & 50–950 ramp

primary
#A1311F
secondary
#58B5C4
accent
#D3EB3D
background
#FDF7F5
surface
#FAEDE9
border
#D3C8C5
text
#140804
muted
#837B79

Preview Lab

Preview with #A1311F

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

Preview Lab → · Contrast checker → · Palette generator →

#A1311F Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva