#A23937#A23937

#A23937 is a mid, vivid red. Relative luminance 0.109; OKLCH L 49.4% C 0.140 H 24.8°. Best body text is #FFFFFF at 6.61:1 contrast (WCAG AA passes).

Color values

HEX	#A23937
RGB	rgb(162, 57, 55)
HSL	hsl(1, 49%, 43%)
HSV	hsv(1, 66%, 64%)
CMYK	cmyk(0%, 64.8%, 66%, 36.5%)
CIE-LAB	lab(39.39, 43.28, 24.76)
CIE-LCH	lch(39.39, 49.86, 29.78°)
OKLab	oklab(49.41% 0.1269 0.0585)
OKLCH	oklch(49.41% 0.14 24.8)
XYZ	xyz(17.0547, 10.8858, 4.8168)
Luminance	0.1088 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A23937 #37A0A2

analogous

#A2376B #A23937 #A26E37

triadic

#A23937 #37A239 #3937A2

tetradic

#A23937 #6BA237 #37A0A2 #6E37A2

square

#A23937 #6BA237 #37A0A2 #6E37A2

split-complementary

#A23937 #37A26E #376BA2

monochromatic

#471918 #742927 #A23937 #C45452 #D48180

Accessibility & contrast

On white

6.61

#A23937 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.18

#A23937 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A23937

6.61:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A23937	#FFFFFF	#000000	##FFFFFF
##A23937	1.00	6.61	3.18	6.61
#FFFFFF	6.61	1.00	21.00	1.00
#000000	3.18	21.00	1.00	21.00
##FFFFFF	6.61	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#554F36

Deuteranopia (green-blind)

#6F6534

Tritanopia (blue-blind)

#B22139

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #a23937;
/* rgb */ color: rgb(162, 57, 55);
/* oklch */ color: oklch(49.4% 0.140 24.8);

Tailwind

colors: {
  custom: {
    50: '#c4756e',
    500: '#a23937',
    950: '#000000',
  },
}

SCSS

$custom: #a23937;
$custom-light: #c4756e;
$custom-dark: #000000;

JSON

{
  "hex": "#a23937",
  "rgb": {
    "r": 162,
    "g": 57,
    "b": 55
  },
  "hsl": {
    "h": 1.121,
    "s": 49.309,
    "l": 42.549
  },
  "oklch": {
    "l": 0.49411,
    "c": 0.13976,
    "h": 24.8
  },
  "luminance": 0.10883
}

Semantic roles & 50–950 ramp

primary

#A23937

secondary

#78BCBD

accent

#D6D94F

background

#FCF7F6

surface

#F9EDEB

border

#D2C8C6

text

#140907

muted

#827B7A

Preview Lab

Preview with #A23937

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

Preview Lab → · Contrast checker → · Palette generator →