#AA231A#AA231A

#AA231A is a mid, vivid red. Relative luminance 0.098; OKLCH L 48.2% C 0.172 H 29.1°. Best body text is #FFFFFF at 7.08:1 contrast (WCAG AA passes).

Color values

HEX	#AA231A
RGB	rgb(170, 35, 26)
HSL	hsl(4, 73%, 38%)
HSV	hsv(4, 85%, 67%)
CMYK	cmyk(0%, 79.4%, 84.7%, 33.3%)
CIE-LAB	lab(37.53, 53.01, 39.88)
CIE-LCH	lch(37.53, 66.33, 36.96°)
OKLab	oklab(48.19% 0.1506 0.0838)
OKLCH	oklch(48.19% 0.172 29.1)
XYZ	xyz(17.3672, 9.8255, 1.9592)
Luminance	0.0982 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA231A #1AA1AA

analogous

#AA1A59 #AA231A #AA6B1A

triadic

#AA231A #1AAA23 #231AAA

tetradic

#AA231A #59AA1A #1AA1AA #6B1AAA

square

#AA231A #59AA1A #1AA1AA #6B1AAA

split-complementary

#AA231A #1AAA6B #1A59AA

monochromatic

#400D0A #751812 #AA231A #DD2F24 #E66259

Accessibility & contrast

On white

7.08

#AA231A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.96

#AA231A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #AA231A

7.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA231A	#FFFFFF	#000000	##FFFFFF
##AA231A	1.00	7.08	2.96	7.08
#FFFFFF	7.08	1.00	21.00	1.00
#000000	2.96	21.00	1.00	21.00
##FFFFFF	7.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4E4517

Deuteranopia (green-blind)

#6F6312

Tritanopia (blue-blind)

#BC0023

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #aa231a;
/* rgb */ color: rgb(170, 35, 26);
/* oklch */ color: oklch(48.2% 0.172 29.1);

Tailwind

colors: {
  custom: {
    50: '#cd6b58',
    500: '#aa231a',
    950: '#000000',
  },
}

SCSS

$custom: #aa231a;
$custom-light: #cd6b58;
$custom-dark: #000000;

JSON

{
  "hex": "#aa231a",
  "rgb": {
    "r": 170,
    "g": 35,
    "b": 26
  },
  "hsl": {
    "h": 3.75,
    "s": 73.469,
    "l": 38.431
  },
  "oklch": {
    "l": 0.48186,
    "c": 0.17229,
    "h": 29.1
  },
  "luminance": 0.09823
}

Semantic roles & 50–950 ramp

primary

#AA231A

secondary

#57C2C9

accent

#E5F038

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #AA231A

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

Preview Lab → · Contrast checker → · Palette generator →