#AA3333#AA3333

#AA3333 is a mid, vivid red. Relative luminance 0.112; OKLCH L 50.0% C 0.155 H 24.7°. Best body text is #FFFFFF at 6.50:1 contrast (WCAG AA passes).

Color values

HEX	#AA3333
RGB	rgb(170, 51, 51)
HSL	hsl(0, 54%, 43%)
HSV	hsv(0, 70%, 67%)
CMYK	cmyk(0%, 70%, 70%, 33.3%)
CIE-LAB	lab(39.84, 48.34, 28.08)
CIE-LCH	lch(39.84, 55.91, 30.15°)
OKLab	oklab(50% 0.1411 0.065)
OKLCH	oklch(50% 0.155 24.7)
XYZ	xyz(18.3609, 11.1554, 4.3177)
Luminance	0.1115 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3333 #33AAAA

analogous

#AA336E #AA3333 #AA6E33

triadic

#AA3333 #33AA33 #3333AA

tetradic

#AA3333 #6EAA33 #33AAAA #6E33AA

square

#AA3333 #6EAA33 #33AAAA #6E33AA

split-complementary

#AA3333 #33AA6E #336EAA

monochromatic

#4C1717 #7B2525 #AA3333 #CA5050 #D97F7F

Accessibility & contrast

On white

6.50

#AA3333 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#AA3333 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3333

6.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3333	#FFFFFF	#000000	##FFFFFF
##AA3333	1.00	6.50	3.23	6.50
#FFFFFF	6.50	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#544E32

Deuteranopia (green-blind)

#72672F

Tritanopia (blue-blind)

#BB0D34

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #aa3333;
/* rgb */ color: rgb(170, 51, 51);
/* oklch */ color: oklch(50.0% 0.155 24.7);

Tailwind

colors: {
  custom: {
    50: '#cb726b',
    500: '#aa3333',
    950: '#000000',
  },
}

SCSS

$custom: #aa3333;
$custom-light: #cb726b;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3333",
  "rgb": {
    "r": 170,
    "g": 51,
    "b": 51
  },
  "hsl": {
    "h": 0,
    "s": 53.846,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50002,
    "c": 0.15534,
    "h": 24.7
  },
  "luminance": 0.11153
}

Semantic roles & 50–950 ramp

primary

#AA3333

secondary

#77C2C2

accent

#DDDD4B

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150806

muted

#837B7A

Preview Lab

Preview with #AA3333

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

Preview Lab → · Contrast checker → · Palette generator →