#A6231F#A6231F

#A6231F is a mid, vivid red. Relative luminance 0.094; OKLCH L 47.5% C 0.168 H 27.7°. Best body text is #FFFFFF at 7.29:1 contrast (WCAG AA passes).

Color values

HEX	#A6231F
RGB	rgb(166, 35, 31)
HSL	hsl(2, 69%, 39%)
HSV	hsv(2, 81%, 65%)
CMYK	cmyk(0%, 78.9%, 81.3%, 34.9%)
CIE-LAB	lab(36.76, 51.93, 36.17)
CIE-LCH	lch(36.76, 63.28, 34.86°)
OKLab	oklab(47.49% 0.1486 0.0779)
OKLCH	oklch(47.49% 0.168 27.7)
XYZ	xyz(16.5763, 9.4106, 2.2397)
Luminance	0.0941 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A6231F #1FA2A6

analogous

#A61F5E #A6231F #A6661F

triadic

#A6231F #1FA623 #231FA6

tetradic

#A6231F #5EA61F #1FA2A6 #661FA6

square

#A6231F #5EA61F #1FA2A6 #661FA6

split-complementary

#A6231F #1FA666 #1F5EA6

monochromatic

#3F0D0C #721815 #A6231F #D7302B #E1625E

Accessibility & contrast

On white

7.29

#A6231F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.88

#A6231F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #A6231F

7.29:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A6231F	#FFFFFF	#000000	##FFFFFF
##A6231F	1.00	7.29	2.88	7.29
#FFFFFF	7.29	1.00	21.00	1.00
#000000	2.88	21.00	1.00	21.00
##FFFFFF	7.29	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C441D

Deuteranopia (green-blind)

#6C6119

Tritanopia (blue-blind)

#B70024

Achromatopsia (no color)

#565656

Design tokens & code

CSS

--color: #a6231f;
/* rgb */ color: rgb(166, 35, 31);
/* oklch */ color: oklch(47.5% 0.168 27.7);

Tailwind

colors: {
  custom: {
    50: '#ca6a5c',
    500: '#a6231f',
    950: '#000000',
  },
}

SCSS

$custom: #a6231f;
$custom-light: #ca6a5c;
$custom-dark: #000000;

JSON

{
  "hex": "#a6231f",
  "rgb": {
    "r": 166,
    "g": 35,
    "b": 31
  },
  "hsl": {
    "h": 1.778,
    "s": 68.528,
    "l": 38.627
  },
  "oklch": {
    "l": 0.47489,
    "c": 0.16777,
    "h": 27.7
  },
  "luminance": 0.09408
}

Semantic roles & 50–950 ramp

primary

#A6231F

secondary

#5BC2C5

accent

#E6EB3C

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #A6231F

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

Preview Lab → · Contrast checker → · Palette generator →