#A3312A#A3312A

#A3312A is a mid, vivid red. Relative luminance 0.102; OKLCH L 48.4% C 0.151 H 27.7°. Best body text is #FFFFFF at 6.93:1 contrast (WCAG AA passes).

Color values

HEX	#A3312A
RGB	rgb(163, 49, 42)
HSL	hsl(3, 59%, 40%)
HSV	hsv(3, 74%, 64%)
CMYK	cmyk(0%, 69.9%, 74.2%, 36.1%)
CIE-LAB	lab(38.12, 46.36, 31.11)
CIE-LCH	lch(38.12, 55.83, 33.86°)
OKLab	oklab(48.43% 0.1338 0.0702)
OKLCH	oklch(48.43% 0.151 27.7)
XYZ	xyz(16.6223, 10.1528, 3.2745)
Luminance	0.1015 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3312A #2A9CA3

analogous

#A32A60 #A3312A #A36D2A

triadic

#A3312A #2AA331 #312AA3

tetradic

#A3312A #60A32A #2A9CA3 #6D2AA3

square

#A3312A #60A32A #2A9CA3 #6D2AA3

split-complementary

#A3312A #2AA36D #2A60A3

monochromatic

#421411 #72221D #A3312A #CD453D #DA746E

Accessibility & contrast

On white

6.93

#A3312A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.03

#A3312A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3312A

6.93:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3312A	#FFFFFF	#000000	##FFFFFF
##A3312A	1.00	6.93	3.03	6.93
#FFFFFF	6.93	1.00	21.00	1.00
#000000	3.03	21.00	1.00	21.00
##FFFFFF	6.93	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524A28

Deuteranopia (green-blind)

#6E6326

Tritanopia (blue-blind)

#B30B30

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a3312a;
/* rgb */ color: rgb(163, 49, 42);
/* oklch */ color: oklch(48.4% 0.151 27.7);

Tailwind

colors: {
  custom: {
    50: '#c67064',
    500: '#a3312a',
    950: '#000000',
  },
}

SCSS

$custom: #a3312a;
$custom-light: #c67064;
$custom-dark: #000000;

JSON

{
  "hex": "#a3312a",
  "rgb": {
    "r": 163,
    "g": 49,
    "b": 42
  },
  "hsl": {
    "h": 3.471,
    "s": 59.024,
    "l": 40.196
  },
  "oklch": {
    "l": 0.48431,
    "c": 0.15108,
    "h": 27.7
  },
  "luminance": 0.1015
}

Semantic roles & 50–950 ramp

primary

#A3312A

secondary

#68BBC0

accent

#D9E246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140805

muted

#837B7A

Preview Lab

Preview with #A3312A

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

Preview Lab → · Contrast checker → · Palette generator →