#A13738#A13738

#A13738 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.141 H 23.4°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A13738
RGB	rgb(161, 55, 56)
HSL	hsl(359, 49%, 42%)
HSV	hsv(359, 66%, 63%)
CMYK	cmyk(0%, 65.8%, 65.2%, 36.9%)
CIE-LAB	lab(38.89, 43.88, 23.49)
CIE-LCH	lch(38.89, 49.77, 28.16°)
OKLab	oklab(49.01% 0.1291 0.0558)
OKLCH	oklch(49.01% 0.141 23.4)
XYZ	xyz(16.7796, 10.5973, 4.9025)
Luminance	0.1060 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A13738 #37A1A0

analogous

#A1376D #A13738 #A16B37

triadic

#A13738 #38A137 #3738A1

tetradic

#A13738 #6DA137 #37A1A0 #6B37A1

square

#A13738 #6DA137 #37A1A0 #6B37A1

split-complementary

#A13738 #37A16B #376DA1

monochromatic

#461818 #732728 #A13738 #C45153 #D37F80

Accessibility & contrast

On white

6.73

#A13738 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A13738 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A13738

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A13738	#FFFFFF	#000000	##FFFFFF
##A13738	1.00	6.73	3.12	6.73
#FFFFFF	6.73	1.00	21.00	1.00
#000000	3.12	21.00	1.00	21.00
##FFFFFF	6.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D37

Deuteranopia (green-blind)

#6E6435

Tritanopia (blue-blind)

#B11F38

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a13738;
/* rgb */ color: rgb(161, 55, 56);
/* oklch */ color: oklch(49.0% 0.141 23.4);

Tailwind

colors: {
  custom: {
    50: '#c3746e',
    500: '#a13738',
    950: '#000000',
  },
}

SCSS

$custom: #a13738;
$custom-light: #c3746e;
$custom-dark: #000000;

JSON

{
  "hex": "#a13738",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 56
  },
  "hsl": {
    "h": 359.434,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49013,
    "c": 0.1407,
    "h": 23.4
  },
  "luminance": 0.10595
}

Semantic roles & 50–950 ramp

primary

#A13738

secondary

#77BDBC

accent

#D9D74F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140807

muted

#827B7A

Preview Lab

Preview with #A13738

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

Preview Lab → · Contrast checker → · Palette generator →