#AA3137#AA3137

#AA3137 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.9% C 0.157 H 22.3°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#AA3137
RGB	rgb(170, 49, 55)
HSL	hsl(357, 55%, 43%)
HSV	hsv(357, 71%, 67%)
CMYK	cmyk(0%, 71.2%, 67.6%, 33.3%)
CIE-LAB	lab(39.62, 49.35, 25.37)
CIE-LCH	lch(39.62, 55.49, 27.21°)
OKLab	oklab(49.85% 0.1451 0.0596)
OKLCH	oklch(49.85% 0.157 22.3)
XYZ	xyz(18.3674, 11.0212, 4.7738)
Luminance	0.1102 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3137 #31AAA4

analogous

#AA3173 #AA3137 #AA6831

triadic

#AA3137 #37AA31 #3137AA

tetradic

#AA3137 #73AA31 #31AAA4 #6831AA

square

#AA3137 #73AA31 #31AAA4 #6831AA

split-complementary

#AA3137 #31AA68 #3173AA

monochromatic

#4B1618 #7A2328 #AA3137 #CC4D53 #D97C81

Accessibility & contrast

On white

6.55

#AA3137 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.20

#AA3137 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3137

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3137	#FFFFFF	#000000	##FFFFFF
##AA3137	1.00	6.55	3.20	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.20	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D36

Deuteranopia (green-blind)

#716733

Tritanopia (blue-blind)

#BB0934

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #aa3137;
/* rgb */ color: rgb(170, 49, 55);
/* oklch */ color: oklch(49.9% 0.157 22.3);

Tailwind

colors: {
  custom: {
    50: '#cb726d',
    500: '#aa3137',
    950: '#000000',
  },
}

SCSS

$custom: #aa3137;
$custom-light: #cb726d;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3137",
  "rgb": {
    "r": 170,
    "g": 49,
    "b": 55
  },
  "hsl": {
    "h": 357.025,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49854,
    "c": 0.15688,
    "h": 22.3
  },
  "luminance": 0.11019
}

Semantic roles & 50–950 ramp

primary

#AA3137

secondary

#75C2BE

accent

#DFD749

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150807

muted

#837B7A

Preview Lab

Preview with #AA3137

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

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