#AA3138#AA3138

#AA3138 is a mid, vivid red. Relative luminance 0.110; OKLCH L 49.9% C 0.157 H 21.9°. Best body text is #FFFFFF at 6.55:1 contrast (WCAG AA passes).

Color values

HEX	#AA3138
RGB	rgb(170, 49, 56)
HSL	hsl(357, 55%, 43%)
HSV	hsv(357, 71%, 67%)
CMYK	cmyk(0%, 71.2%, 67.1%, 33.3%)
CIE-LAB	lab(39.63, 49.40, 24.77)
CIE-LCH	lch(39.63, 55.27, 26.63°)
OKLab	oklab(49.87% 0.1455 0.0584)
OKLCH	oklch(49.87% 0.157 21.9)
XYZ	xyz(18.3916, 11.0309, 4.9014)
Luminance	0.1103 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#AA3138 #31AAA3

analogous

#AA3174 #AA3138 #AA6631

triadic

#AA3138 #38AA31 #3138AA

tetradic

#AA3138 #74AA31 #31AAA3 #6631AA

square

#AA3138 #74AA31 #31AAA3 #6631AA

split-complementary

#AA3138 #31AA66 #3174AA

monochromatic

#4B1619 #7A2328 #AA3138 #CC4D54 #D97C82

Accessibility & contrast

On white

6.55

#AA3138 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.21

#AA3138 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #AA3138

6.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##AA3138	#FFFFFF	#000000	##FFFFFF
##AA3138	1.00	6.55	3.21	6.55
#FFFFFF	6.55	1.00	21.00	1.00
#000000	3.21	21.00	1.00	21.00
##FFFFFF	6.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534D37

Deuteranopia (green-blind)

#716734

Tritanopia (blue-blind)

#BB0A35

Achromatopsia (no color)

#5D5D5D

Design tokens & code

CSS

--color: #aa3138;
/* rgb */ color: rgb(170, 49, 56);
/* oklch */ color: oklch(49.9% 0.157 21.9);

Tailwind

colors: {
  custom: {
    50: '#cb726e',
    500: '#aa3138',
    950: '#000000',
  },
}

SCSS

$custom: #aa3138;
$custom-light: #cb726e;
$custom-dark: #000000;

JSON

{
  "hex": "#aa3138",
  "rgb": {
    "r": 170,
    "g": 49,
    "b": 56
  },
  "hsl": {
    "h": 356.529,
    "s": 55.251,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49872,
    "c": 0.15679,
    "h": 21.9
  },
  "luminance": 0.11028
}

Semantic roles & 50–950 ramp

primary

#AA3138

secondary

#75C2BD

accent

#DFD649

background

#FDF7F6

surface

#FAEDEC

border

#D3C8C7

text

#150807

muted

#837B7A

Preview Lab

Preview with #AA3138

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

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