#AA251B#AA251B

#AA251B is a mid, vivid red. Relative luminance 0.099; OKLCH L 48.4% C 0.171 H 29.3°. Best body text is #FFFFFF at 7.02:1 contrast (WCAG AA passes).

Color values

HEX	#AA251B
RGB	rgb(170, 37, 27)
HSL	hsl(4, 73%, 39%)
HSV	hsv(4, 84%, 67%)
CMYK	cmyk(0%, 78.2%, 84.1%, 33.3%)
CIE-LAB	lab(37.75, 52.42, 39.57)
CIE-LCH	lch(37.75, 65.67, 37.05°)
OKLab	oklab(48.36% 0.1489 0.0835)
OKLCH	oklch(48.36% 0.171 29.3)
XYZ	xyz(17.4391, 9.9511, 2.0392)
Luminance	0.0995 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA251B #1BA0AA

analogous

#AA1B58 #AA251B #AA6C1B

triadic

#AA251B #1BAA25 #251BAA

tetradic

#AA251B #58AA1B #1BA0AA #6C1BAA

square

#AA251B #58AA1B #1BA0AA #6C1BAA

split-complementary

#AA251B #1BAA6C #1B58AA

monochromatic

#400E0A #751A13 #AA251B #DC3226 #E5645B

Accessibility & contrast

On white

7.02

#AA251B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.99

#AA251B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #AA251B

7.02:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA251B	#FFFFFF	#000000	##FFFFFF
##AA251B	1.00	7.02	2.99	7.02
#FFFFFF	7.02	1.00	21.00	1.00
#000000	2.99	21.00	1.00	21.00
##FFFFFF	7.02	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4618

Deuteranopia (green-blind)

#706313

Tritanopia (blue-blind)

#BC0024

Achromatopsia (no color)

#595959

Design tokens & code

CSS

--color: #aa251b;
/* rgb */ color: rgb(170, 37, 27);
/* oklch */ color: oklch(48.4% 0.171 29.3);

Tailwind

colors: {
  custom: {
    50: '#cd6c59',
    500: '#aa251b',
    950: '#000000',
  },
}

SCSS

$custom: #aa251b;
$custom-light: #cd6c59;
$custom-dark: #000000;

JSON

{
  "hex": "#aa251b",
  "rgb": {
    "r": 170,
    "g": 37,
    "b": 27
  },
  "hsl": {
    "h": 4.196,
    "s": 72.589,
    "l": 38.627
  },
  "oklch": {
    "l": 0.48358,
    "c": 0.1707,
    "h": 29.3
  },
  "luminance": 0.09948
}

Semantic roles & 50–950 ramp

primary

#AA251B

secondary

#58C1C9

accent

#E3EF39

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #AA251B

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

Preview Lab → · Contrast checker → · Palette generator →