#A13739#A13739

#A13739 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.0% C 0.141 H 22.9°. Best body text is #FFFFFF at 6.73:1 contrast (WCAG AA passes).

Color values

HEX	#A13739
RGB	rgb(161, 55, 57)
HSL	hsl(359, 49%, 42%)
HSV	hsv(359, 66%, 63%)
CMYK	cmyk(0%, 65.8%, 64.6%, 36.9%)
CIE-LAB	lab(38.91, 43.94, 22.90)
CIE-LCH	lch(38.91, 49.55, 27.52°)
OKLab	oklab(49.03% 0.1295 0.0546)
OKLCH	oklch(49.03% 0.141 22.9)
XYZ	xyz(16.8043, 10.6072, 5.0326)
Luminance	0.1061 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A13739 #37A19F

analogous

#A1376E #A13739 #A16A37

triadic

#A13739 #39A137 #3739A1

tetradic

#A13739 #6EA137 #37A19F #6A37A1

square

#A13739 #6EA137 #37A19F #6A37A1

split-complementary

#A13739 #37A16A #376EA1

monochromatic

#461819 #732729 #A13739 #C45154 #D37F81

Accessibility & contrast

On white

6.73

#A13739 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.12

#A13739 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A13739

6.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A13739	#FFFFFF	#000000	##FFFFFF
##A13739	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)

#534D38

Deuteranopia (green-blind)

#6E6436

Tritanopia (blue-blind)

#B11F39

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a13739;
/* rgb */ color: rgb(161, 55, 57);
/* oklch */ color: oklch(49.0% 0.141 22.9);

Tailwind

colors: {
  custom: {
    50: '#c3746f',
    500: '#a13739',
    950: '#000000',
  },
}

SCSS

$custom: #a13739;
$custom-light: #c3746f;
$custom-dark: #000000;

JSON

{
  "hex": "#a13739",
  "rgb": {
    "r": 161,
    "g": 55,
    "b": 57
  },
  "hsl": {
    "h": 358.868,
    "s": 49.074,
    "l": 42.353
  },
  "oklch": {
    "l": 0.49031,
    "c": 0.14058,
    "h": 22.9
  },
  "luminance": 0.10605
}

Semantic roles & 50–950 ramp

primary

#A13739

secondary

#77BDBB

accent

#D9D64F

background

#FCF7F6

surface

#F9EDEC

border

#D2C8C7

text

#140807

muted

#827B7A

Preview Lab

Preview with #A13739

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

Preview Lab → · Contrast checker → · Palette generator →