#AA0504#AA0504

#AA0504 is a mid, vivid red. Relative luminance 0.087; OKLCH L 46.5% C 0.188 H 29.1°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#AA0504
RGB	rgb(170, 5, 4)
HSL	hsl(0, 95%, 34%)
HSV	hsv(0, 98%, 67%)
CMYK	cmyk(0%, 97.1%, 97.6%, 33.3%)
CIE-LAB	lab(35.33, 58.53, 47.90)
CIE-LCH	lch(35.33, 75.63, 39.29°)
OKLab	oklab(46.52% 0.1647 0.0915)
OKLCH	oklch(46.52% 0.188 29.1)
XYZ	xyz(16.6560, 8.6663, 0.9106)
Luminance	0.0866 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA0504 #04A9AA

analogous

#AA0456 #AA0504 #AA5804

triadic

#AA0504 #04AA05 #0504AA

tetradic

#AA0504 #56AA04 #04A9AA #5804AA

square

#AA0504 #56AA04 #04A9AA #5804AA

split-complementary

#AA0504 #04AA58 #0456AA

monochromatic

#320101 #6E0303 #AA0504 #E60705 #FA302E

Accessibility & contrast

On white

7.68

#AA0504 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#AA0504 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #AA0504

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA0504	#FFFFFF	#000000	##FFFFFF
##AA0504	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#473D00

Deuteranopia (green-blind)

#6C5F00

Tritanopia (blue-blind)

#BC000B

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #aa0504;
/* rgb */ color: rgb(170, 5, 4);
/* oklch */ color: oklch(46.5% 0.188 29.1);

Tailwind

colors: {
  custom: {
    50: '#cf634b',
    500: '#aa0504',
    950: '#000000',
  },
}

SCSS

$custom: #aa0504;
$custom-light: #cf634b;
$custom-dark: #000000;

JSON

{
  "hex": "#aa0504",
  "rgb": {
    "r": 170,
    "g": 5,
    "b": 4
  },
  "hsl": {
    "h": 0.361,
    "s": 95.402,
    "l": 34.118
  },
  "oklch": {
    "l": 0.46521,
    "c": 0.18838,
    "h": 29.1
  },
  "luminance": 0.08663
}

Semantic roles & 50–950 ramp

primary

#AA0504

secondary

#33D5D6

accent

#FEFF29

background

#FEF6F4

surface

#FCEBE7

border

#D5C6C3

text

#160601

muted

#847A77

Preview Lab

Preview with #AA0504

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

Preview Lab → · Contrast checker → · Palette generator →