#A23731#A23731

#A23731 is a mid, vivid red. Relative luminance 0.106; OKLCH L 49.1% C 0.143 H 26.9°. Best body text is #FFFFFF at 6.72:1 contrast (WCAG AA passes).

Color values

HEX	#A23731
RGB	rgb(162, 55, 49)
HSL	hsl(3, 54%, 41%)
HSV	hsv(3, 70%, 64%)
CMYK	cmyk(0%, 66%, 69.8%, 36.5%)
CIE-LAB	lab(38.96, 43.82, 27.88)
CIE-LCH	lch(38.96, 51.93, 32.47°)
OKLab	oklab(49.06% 0.1274 0.0646)
OKLCH	oklch(49.06% 0.143 26.9)
XYZ	xyz(16.8226, 10.6379, 4.0726)
Luminance	0.1064 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A23731 #319CA2

analogous

#A23164 #A23731 #A27031

triadic

#A23731 #31A237 #3731A2

tetradic

#A23731 #64A231 #319CA2 #7031A2

square

#A23731 #64A231 #319CA2 #7031A2

split-complementary

#A23731 #31A270 #3164A2

monochromatic

#441715 #732723 #A23731 #C84F48 #D67C77

Accessibility & contrast

On white

6.72

#A23731 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#A23731 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A23731

6.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A23731	#FFFFFF	#000000	##FFFFFF
##A23731	1.00	6.72	3.13	6.72
#FFFFFF	6.72	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544D30

Deuteranopia (green-blind)

#6F642E

Tritanopia (blue-blind)

#B21C36

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #a23731;
/* rgb */ color: rgb(162, 55, 49);
/* oklch */ color: oklch(49.1% 0.143 26.9);

Tailwind

colors: {
  custom: {
    50: '#c47469',
    500: '#a23731',
    950: '#000000',
  },
}

SCSS

$custom: #a23731;
$custom-light: #c47469;
$custom-dark: #000000;

JSON

{
  "hex": "#a23731",
  "rgb": {
    "r": 162,
    "g": 55,
    "b": 49
  },
  "hsl": {
    "h": 3.186,
    "s": 53.555,
    "l": 41.373
  },
  "oklch": {
    "l": 0.49063,
    "c": 0.14282,
    "h": 26.9
  },
  "luminance": 0.10636
}

Semantic roles & 50–950 ramp

primary

#A23731

secondary

#71BABE

accent

#D5DD4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#140806

muted

#837B7A

Preview Lab

Preview with #A23731

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

Preview Lab → · Contrast checker → · Palette generator →