#A1311E#A1311E

#A1311E is a mid, vivid red. Relative luminance 0.099; OKLCH L 47.9% C 0.151 H 32.1°. Best body text is #FFFFFF at 7.06:1 contrast (WCAG AA passes).

Color values

HEX	#A1311E
RGB	rgb(161, 49, 30)
HSL	hsl(9, 69%, 37%)
HSV	hsv(9, 81%, 63%)
CMYK	cmyk(0%, 69.6%, 81.4%, 36.9%)
CIE-LAB	lab(37.61, 45.20, 37.23)
CIE-LCH	lch(37.61, 58.56, 39.48°)
OKLab	oklab(47.94% 0.1279 0.0804)
OKLCH	oklch(47.94% 0.151 32.1)
XYZ	xyz(16.0325, 9.8698, 2.2889)
Luminance	0.0987 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A1311E #1E8EA1

analogous

#A11E4D #A1311E #A1721E

triadic

#A1311E #1EA131 #311EA1

tetradic

#A1311E #4DA11E #1E8EA1 #721EA1

square

#A1311E #4DA11E #1E8EA1 #721EA1

split-complementary

#A1311E #1EA172 #1E4DA1

monochromatic

#3A120B #6D2114 #A1311E #D54128 #E06D59

Accessibility & contrast

On white

7.06

#A1311E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.97

#A1311E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A1311E

7.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A1311E	#FFFFFF	#000000	##FFFFFF
##A1311E	1.00	7.06	2.97	7.06
#FFFFFF	7.06	1.00	21.00	1.00
#000000	2.97	21.00	1.00	21.00
##FFFFFF	7.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#52491B

Deuteranopia (green-blind)

#6D6219

Tritanopia (blue-blind)

#B2082E

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #a1311e;
/* rgb */ color: rgb(161, 49, 30);
/* oklch */ color: oklch(47.9% 0.151 32.1);

Tailwind

colors: {
  custom: {
    50: '#c5705b',
    500: '#a1311e',
    950: '#000000',
  },
}

SCSS

$custom: #a1311e;
$custom-light: #c5705b;
$custom-dark: #000000;

JSON

{
  "hex": "#a1311e",
  "rgb": {
    "r": 161,
    "g": 49,
    "b": 30
  },
  "hsl": {
    "h": 8.702,
    "s": 68.586,
    "l": 37.451
  },
  "oklch": {
    "l": 0.4794,
    "c": 0.15105,
    "h": 32.1
  },
  "luminance": 0.09867
}

Semantic roles & 50–950 ramp

primary

#A1311E

secondary

#57B4C4

accent

#D2EB3C

background

#FDF7F5

surface

#FAEDE9

border

#D3C8C5

text

#140804

muted

#837B79

Preview Lab

Preview with #A1311E

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

Preview Lab → · Contrast checker → · Palette generator →