#AA3631#AA3631

#AA3631 is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.3% C 0.153 H 26.6°. Best body text is #FFFFFF at 6.40:1 contrast (WCAG AA passes).

Color values

HEX	#AA3631
RGB	rgb(170, 54, 49)
HSL	hsl(2, 55%, 43%)
HSV	hsv(2, 71%, 67%)
CMYK	cmyk(0%, 68.2%, 71.2%, 33.3%)
CIE-LAB	lab(40.26, 47.02, 29.77)
CIE-LCH	lch(40.26, 55.65, 32.34°)
OKLab	oklab(50.31% 0.1365 0.0684)
OKLCH	oklch(50.31% 0.153 26.6)
XYZ	xyz(18.4531, 11.4088, 4.1356)
Luminance	0.1141 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3631 #31A5AA

analogous

#AA3169 #AA3631 #AA7231

triadic

#AA3631 #31AA36 #3631AA

tetradic

#AA3631 #69AA31 #31A5AA #7231AA

square

#AA3631 #69AA31 #31A5AA #7231AA

split-complementary

#AA3631 #31AA72 #3169AA

monochromatic

#4B1816 #7A2723 #AA3631 #CC524D #D9807C

Accessibility & contrast

On white

6.40

#AA3631 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.28

#AA3631 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3631

6.40:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3631	#FFFFFF	#000000	##FFFFFF
##AA3631	1.00	6.40	3.28	6.40
#FFFFFF	6.40	1.00	21.00	1.00
#000000	3.28	21.00	1.00	21.00
##FFFFFF	6.40	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#564F2F

Deuteranopia (green-blind)

#73682D

Tritanopia (blue-blind)

#BB1536

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #aa3631;
/* rgb */ color: rgb(170, 54, 49);
/* oklch */ color: oklch(50.3% 0.153 26.6);

Tailwind

colors: {
  custom: {
    50: '#cb7469',
    500: '#aa3631',
    950: '#000000',
  },
}

SCSS

$custom: #aa3631;
$custom-light: #cb7469;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3631",
  "rgb": {
    "r": 170,
    "g": 54,
    "b": 49
  },
  "hsl": {
    "h": 2.479,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.50307,
    "c": 0.15265,
    "h": 26.6
  },
  "luminance": 0.11406
}

Semantic roles & 50–950 ramp

primary

#AA3631

secondary

#75BFC2

accent

#D8DF49

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150906

muted

#837B7A

Preview Lab

Preview with #AA3631

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

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