#AA2121#AA2121

#AA2121 is a mid, vivid red. Relative luminance 0.097; OKLCH L 48.1% C 0.173 H 26.7°. Best body text is #FFFFFF at 7.12:1 contrast (WCAG AA passes).

Color values

HEX	#AA2121
RGB	rgb(170, 33, 33)
HSL	hsl(0, 67%, 40%)
HSV	hsv(0, 81%, 67%)
CMYK	cmyk(0%, 80.6%, 80.6%, 33.3%)
CIE-LAB	lab(37.38, 53.79, 35.94)
CIE-LCH	lch(37.38, 64.69, 33.74°)
OKLab	oklab(48.1% 0.1544 0.0777)
OKLCH	oklch(48.1% 0.173 26.7)
XYZ	xyz(17.3981, 9.7464, 2.4037)
Luminance	0.0974 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA2121 #21AAAA

analogous

#AA2166 #AA2121 #AA6621

triadic

#AA2121 #21AA21 #2121AA

tetradic

#AA2121 #66AA21 #21AAAA #6621AA

square

#AA2121 #66AA21 #21AAAA #6621AA

split-complementary

#AA2121 #21AA66 #2166AA

monochromatic

#430D0D #771717 #AA2121 #D73131 #E16464

Accessibility & contrast

On white

7.12

#AA2121 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.95

#AA2121 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #AA2121

7.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA2121	#FFFFFF	#000000	##FFFFFF
##AA2121	1.00	7.12	2.95	7.12
#FFFFFF	7.12	1.00	21.00	1.00
#000000	2.95	21.00	1.00	21.00
##FFFFFF	7.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4D451F

Deuteranopia (green-blind)

#6E631A

Tritanopia (blue-blind)

#BC0023

Achromatopsia (no color)

#585858

Design tokens & code

CSS

--color: #aa2121;
/* rgb */ color: rgb(170, 33, 33);
/* oklch */ color: oklch(48.1% 0.173 26.7);

Tailwind

colors: {
  custom: {
    50: '#cd6a5d',
    500: '#aa2121',
    950: '#000000',
  },
}

SCSS

$custom: #aa2121;
$custom-light: #cd6a5d;
$custom-dark: #000000;

JSON

{
  "hex": "#aa2121",
  "rgb": {
    "r": 170,
    "g": 33,
    "b": 33
  },
  "hsl": {
    "h": 0,
    "s": 67.488,
    "l": 39.804
  },
  "oklch": {
    "l": 0.48099,
    "c": 0.17287,
    "h": 26.7
  },
  "luminance": 0.09744
}

Semantic roles & 50–950 ramp

primary

#AA2121

secondary

#61C6C6

accent

#EAEA3D

background

#FDF6F5

surface

#FBECE9

border

#D4C7C5

text

#150704

muted

#837A79

Preview Lab

Preview with #AA2121

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

Preview Lab → · Contrast checker → · Palette generator →