#AA373B#AA373B

#AA373B is a mid, vivid red. Relative luminance 0.116; OKLCH L 50.6% C 0.150 H 22.4°. Best body text is #FFFFFF at 6.33:1 contrast (WCAG AA passes).

Color values

HEX	#AA373B
RGB	rgb(170, 55, 59)
HSL	hsl(358, 51%, 44%)
HSV	hsv(358, 68%, 67%)
CMYK	cmyk(0%, 67.6%, 65.3%, 33.3%)
CIE-LAB	lab(40.57, 47.16, 24.10)
CIE-LCH	lch(40.57, 52.96, 27.07°)
OKLab	oklab(50.59% 0.139 0.0573)
OKLCH	oklch(50.59% 0.15 22.4)
XYZ	xyz(18.7351, 11.5968, 5.3887)
Luminance	0.1159 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA373B #37AAA6

analogous

#AA3775 #AA373B #AA6D37

triadic

#AA373B #3BAA37 #373BAA

tetradic

#AA373B #75AA37 #37AAA6 #6D37AA

square

#AA373B #75AA37 #37AAA6 #6D37AA

split-complementary

#AA373B #37AA6D #3775AA

monochromatic

#4E191B #7C282B #AA373B #C8565A #D78487

Accessibility & contrast

On white

6.33

#AA373B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.32

#AA373B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA373B

6.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA373B	#FFFFFF	#000000	##FFFFFF
##AA373B	1.00	6.33	3.32	6.33
#FFFFFF	6.33	1.00	21.00	1.00
#000000	3.32	21.00	1.00	21.00
##FFFFFF	6.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#56503A

Deuteranopia (green-blind)

#736938

Tritanopia (blue-blind)

#BA1A39

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #aa373b;
/* rgb */ color: rgb(170, 55, 59);
/* oklch */ color: oklch(50.6% 0.150 22.4);

Tailwind

colors: {
  custom: {
    50: '#ca7571',
    500: '#aa373b',
    950: '#000000',
  },
}

SCSS

$custom: #aa373b;
$custom-light: #ca7571;
$custom-dark: #000000;

JSON

{
  "hex": "#aa373b",
  "rgb": {
    "r": 170,
    "g": 55,
    "b": 59
  },
  "hsl": {
    "h": 357.913,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50587,
    "c": 0.15033,
    "h": 22.4
  },
  "luminance": 0.11594
}

Semantic roles & 50–950 ramp

primary

#AA373B

secondary

#7CC1BF

accent

#DBD64D

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150907

muted

#837B7A

Preview Lab

Preview with #AA373B

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

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