#AA3747#AA3747

#AA3747 is a mid, vivid red. Relative luminance 0.117; OKLCH L 50.8% C 0.150 H 16.2°. Best body text is #FFFFFF at 6.28:1 contrast (WCAG AA passes).

Color values

HEX	#AA3747
RGB	rgb(170, 55, 71)
HSL	hsl(352, 51%, 44%)
HSV	hsv(352, 68%, 67%)
CMYK	cmyk(0%, 67.6%, 58.2%, 33.3%)
CIE-LAB	lab(40.79, 47.98, 16.97)
CIE-LCH	lch(40.79, 50.89, 19.48°)
OKLab	oklab(50.83% 0.1438 0.0419)
OKLCH	oklch(50.83% 0.15 16.2)
XYZ	xyz(19.0829, 11.7359, 7.2204)
Luminance	0.1173 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3747 #37AA9A

analogous

#AA3781 #AA3747 #AA6137

triadic

#AA3747 #47AA37 #3747AA

tetradic

#AA3747 #81AA37 #37AA9A #6137AA

square

#AA3747 #81AA37 #37AA9A #6137AA

split-complementary

#AA3747 #37AA61 #3781AA

monochromatic

#4E1920 #7C2834 #AA3747 #C85666 #D78490

Accessibility & contrast

On white

6.28

#AA3747 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.35

#AA3747 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3747

6.28:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3747	#FFFFFF	#000000	##FFFFFF
##AA3747	1.00	6.28	3.35	6.28
#FFFFFF	6.28	1.00	21.00	1.00
#000000	3.35	21.00	1.00	21.00
##FFFFFF	6.28	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#545147

Deuteranopia (green-blind)

#716944

Tritanopia (blue-blind)

#BA1F3E

Achromatopsia (no color)

#606060

Design tokens & code

CSS

--color: #aa3747;
/* rgb */ color: rgb(170, 55, 71);
/* oklch */ color: oklch(50.8% 0.150 16.2);

Tailwind

colors: {
  custom: {
    50: '#c9757a',
    500: '#aa3747',
    950: '#000000',
  },
}

SCSS

$custom: #aa3747;
$custom-light: #c9757a;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3747",
  "rgb": {
    "r": 170,
    "g": 55,
    "b": 71
  },
  "hsl": {
    "h": 351.652,
    "s": 51.111,
    "l": 44.118
  },
  "oklch": {
    "l": 0.50828,
    "c": 0.1498,
    "h": 16.2
  },
  "luminance": 0.11733
}

Semantic roles & 50–950 ramp

primary

#AA3747

secondary

#7CC1B7

accent

#DBC74D

background

#FDF7F7

surface

#FAEDED

border

#D3C8C8

text

#140909

muted

#837B7B

Preview Lab

Preview with #AA3747

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

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