#A5312B#A5312B

#A5312B is a mid, vivid red. Relative luminance 0.104; OKLCH L 48.8% C 0.153 H 27.3°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#A5312B
RGB	rgb(165, 49, 43)
HSL	hsl(3, 59%, 41%)
HSV	hsv(3, 74%, 65%)
CMYK	cmyk(0%, 70.3%, 73.9%, 35.3%)
CIE-LAB	lab(38.50, 47.08, 31.06)
CIE-LCH	lch(38.50, 56.40, 33.41°)
OKLab	oklab(48.8% 0.136 0.0702)
OKLCH	oklch(48.8% 0.153 27.3)
XYZ	xyz(17.0533, 10.3729, 3.3893)
Luminance	0.1037 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A5312B #2B9FA5

analogous

#A52B62 #A5312B #A56E2B

triadic

#A5312B #2BA531 #312BA5

tetradic

#A5312B #62A52B #2B9FA5 #6E2BA5

square

#A5312B #62A52B #2B9FA5 #6E2BA5

split-complementary

#A5312B #2BA56E #2B62A5

monochromatic

#441412 #74231E #A5312B #CD4740 #DA7671

Accessibility & contrast

On white

6.83

#A5312B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#A5312B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A5312B

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A5312B	#FFFFFF	#000000	##FFFFFF
##A5312B	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#524B29

Deuteranopia (green-blind)

#6F6427

Tritanopia (blue-blind)

#B60931

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #a5312b;
/* rgb */ color: rgb(165, 49, 43);
/* oklch */ color: oklch(48.8% 0.153 27.3);

Tailwind

colors: {
  custom: {
    50: '#c77165',
    500: '#a5312b',
    950: '#000000',
  },
}

SCSS

$custom: #a5312b;
$custom-light: #c77165;
$custom-dark: #000000;

JSON

{
  "hex": "#a5312b",
  "rgb": {
    "r": 165,
    "g": 49,
    "b": 43
  },
  "hsl": {
    "h": 2.951,
    "s": 58.654,
    "l": 40.784
  },
  "oklch": {
    "l": 0.48795,
    "c": 0.15308,
    "h": 27.3
  },
  "luminance": 0.1037
}

Semantic roles & 50–950 ramp

primary

#A5312B

secondary

#6BBDC1

accent

#DAE246

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150805

muted

#837B7A

Preview Lab

Preview with #A5312B

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

Preview Lab → · Contrast checker → · Palette generator →