#A3313A#A3313A

#A3313A is a mid, vivid red. Relative luminance 0.103; OKLCH L 48.7% C 0.149 H 20.3°. Best body text is #FFFFFF at 6.87:1 contrast (WCAG AA passes).

Color values

HEX	#A3313A
RGB	rgb(163, 49, 58)
HSL	hsl(355, 54%, 42%)
HSV	hsv(355, 70%, 64%)
CMYK	cmyk(0%, 69.9%, 64.4%, 36.1%)
CIE-LAB	lab(38.36, 47.23, 21.65)
CIE-LCH	lch(38.36, 51.95, 24.63°)
OKLab	oklab(48.69% 0.1399 0.0518)
OKLCH	oklch(48.69% 0.149 20.3)
XYZ	xyz(16.9680, 10.2911, 5.0951)
Luminance	0.1029 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A3313A #31A39A

analogous

#A33173 #A3313A #A36131

triadic

#A3313A #3AA331 #313AA3

tetradic

#A3313A #73A331 #31A39A #6131A3

square

#A3313A #73A331 #31A39A #6131A3

split-complementary

#A3313A #31A361 #3173A3

monochromatic

#451519 #742329 #A3313A #C84953 #D6787F

Accessibility & contrast

On white

6.87

#A3313A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.06

#A3313A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A3313A

6.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A3313A	#FFFFFF	#000000	##FFFFFF
##A3313A	1.00	6.87	3.06	6.87
#FFFFFF	6.87	1.00	21.00	1.00
#000000	3.06	21.00	1.00	21.00
##FFFFFF	6.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#504B3A

Deuteranopia (green-blind)

#6C6337

Tritanopia (blue-blind)

#B31235

Achromatopsia (no color)

#5A5A5A

Design tokens & code

CSS

--color: #a3313a;
/* rgb */ color: rgb(163, 49, 58);
/* oklch */ color: oklch(48.7% 0.149 20.3);

Tailwind

colors: {
  custom: {
    50: '#c57170',
    500: '#a3313a',
    950: '#000000',
  },
}

SCSS

$custom: #a3313a;
$custom-light: #c57170;
$custom-dark: #000000;

JSON

{
  "hex": "#a3313a",
  "rgb": {
    "r": 163,
    "g": 49,
    "b": 58
  },
  "hsl": {
    "h": 355.263,
    "s": 53.774,
    "l": 41.569
  },
  "oklch": {
    "l": 0.48693,
    "c": 0.1492,
    "h": 20.3
  },
  "luminance": 0.10289
}

Semantic roles & 50–950 ramp

primary

#A3313A

secondary

#71BFB9

accent

#DDD24B

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#140807

muted

#837B7A

Preview Lab

Preview with #A3313A

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

Preview Lab → · Contrast checker → · Palette generator →