#AA3837#AA3837

#AA3837 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.6% C 0.150 H 24.6°. Best body text is #FFFFFF at 6.31:1 contrast (WCAG AA passes).

Color values

HEX	#AA3837
RGB	rgb(170, 56, 55)
HSL	hsl(1, 51%, 44%)
HSV	hsv(1, 68%, 67%)
CMYK	cmyk(0%, 67.1%, 67.6%, 33.3%)
CIE-LAB	lab(40.66, 46.50, 26.65)
CIE-LCH	lch(40.66, 53.60, 29.82°)
OKLab	oklab(50.63% 0.1361 0.0625)
OKLCH	oklch(50.63% 0.15 24.6)
XYZ	xyz(18.6833, 11.6529, 4.8791)
Luminance	0.1165 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3837 #37A9AA

analogous

#AA3770 #AA3837 #AA7237

triadic

#AA3837 #37AA38 #3837AA

tetradic

#AA3837 #70AA37 #37A9AA #7237AA

square

#AA3837 #70AA37 #37A9AA #7237AA

split-complementary

#AA3837 #37AA72 #3770AA

monochromatic

#4E1A19 #7C2928 #AA3837 #C85756 #D78584

Accessibility & contrast

On white

6.31

#AA3837 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.33

#AA3837 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3837

6.31:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3837	#FFFFFF	#000000	##FFFFFF
##AA3837	1.00	6.31	3.33	6.31
#FFFFFF	6.31	1.00	21.00	1.00
#000000	3.33	21.00	1.00	21.00
##FFFFFF	6.31	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#575036

Deuteranopia (green-blind)

#736934

Tritanopia (blue-blind)

#BB1B39

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #aa3837;
/* rgb */ color: rgb(170, 56, 55);
/* oklch */ color: oklch(50.6% 0.150 24.6);

Tailwind

colors: {
  custom: {
    50: '#ca756e',
    500: '#aa3837',
    950: '#000000',
  },
}

SCSS

$custom: #aa3837;
$custom-light: #ca756e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3837",
  "rgb": {
    "r": 170,
    "g": 56,
    "b": 55
  },
  "hsl": {
    "h": 0.522,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50634,
    "c": 0.14974,
    "h": 24.6
  },
  "luminance": 0.1165
}

Semantic roles & 50–950 ramp

primary

#AA3837

secondary

#7CC0C1

accent

#D9DB4D

background

#FDF7F6

surface

#FAEDEB

border

#D3C8C6

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA3837

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

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