#A7231C#A7231C

#A7231C is a mid, vivid red. Relative luminance 0.095; OKLCH L 47.6% C 0.169 H 28.6°. Best body text is #FFFFFF at 7.24:1 contrast (WCAG AA passes).

Color values

HEX	#A7231C
RGB	rgb(167, 35, 28)
HSL	hsl(3, 71%, 38%)
HSV	hsv(3, 83%, 65%)
CMYK	cmyk(0%, 79%, 83.2%, 34.5%)
CIE-LAB	lab(36.94, 52.14, 38.06)
CIE-LCH	lch(36.94, 64.55, 36.12°)
OKLab	oklab(47.65% 0.1486 0.0808)
OKLCH	oklch(47.65% 0.169 28.6)
XYZ	xyz(16.7490, 9.5041, 2.0510)
Luminance	0.0950 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A7231C #1CA0A7

analogous

#A71C5A #A7231C #A7691C

triadic

#A7231C #1CA723 #231CA7

tetradic

#A7231C #5AA71C #1CA0A7 #691CA7

square

#A7231C #5AA71C #1CA0A7 #691CA7

split-complementary

#A7231C #1CA769 #1C5AA7

monochromatic

#3E0D0A #731813 #A7231C #DB2F26 #E3615A

Accessibility & contrast

On white

7.24

#A7231C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.90

#A7231C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A7231C

7.24:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A7231C	#FFFFFF	#000000	##FFFFFF
##A7231C	1.00	7.24	2.90	7.24
#FFFFFF	7.24	1.00	21.00	1.00
#000000	2.90	21.00	1.00	21.00
##FFFFFF	7.24	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D4419

Deuteranopia (green-blind)

#6D6115

Tritanopia (blue-blind)

#B80023

Achromatopsia (no color)

#575757

Design tokens & code

CSS

--color: #a7231c;
/* rgb */ color: rgb(167, 35, 28);
/* oklch */ color: oklch(47.6% 0.169 28.6);

Tailwind

colors: {
  custom: {
    50: '#cb6a5a',
    500: '#a7231c',
    950: '#000000',
  },
}

SCSS

$custom: #a7231c;
$custom-light: #cb6a5a;
$custom-dark: #000000;

JSON

{
  "hex": "#a7231c",
  "rgb": {
    "r": 167,
    "g": 35,
    "b": 28
  },
  "hsl": {
    "h": 3.022,
    "s": 71.282,
    "l": 38.235
  },
  "oklch": {
    "l": 0.47645,
    "c": 0.16913,
    "h": 28.6
  },
  "luminance": 0.09501
}

Semantic roles & 50–950 ramp

primary

#A7231C

secondary

#58C1C7

accent

#E5EE3A

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A7231C

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

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