#A4374B#A4374B

#A4374B is a mid, vivid red. Relative luminance 0.111; OKLCH L 49.9% C 0.143 H 13.1°. Best body text is #FFFFFF at 6.51:1 contrast (WCAG AA passes).

Color values

HEX	#A4374B
RGB	rgb(164, 55, 75)
HSL	hsl(349, 50%, 43%)
HSV	hsv(349, 66%, 64%)
CMYK	cmyk(0%, 66.5%, 54.3%, 35.7%)
CIE-LAB	lab(39.81, 46.30, 12.95)
CIE-LCH	lch(39.81, 48.08, 15.62°)
OKLab	oklab(49.92% 0.1398 0.0326)
OKLCH	oklch(49.92% 0.144 13.1)
XYZ	xyz(17.9476, 11.1352, 7.8595)
Luminance	0.1113 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#A4374B #37A490

analogous

#A43781 #A4374B #A45937

triadic

#A4374B #4BA437 #374BA4

tetradic

#A4374B #81A437 #37A490 #5937A4

square

#A4374B #81A437 #37A490 #5937A4

split-complementary

#A4374B #37A459 #3781A4

monochromatic

#481821 #762836 #A4374B #C55368 #D58190

Accessibility & contrast

On white

6.51

#A4374B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.23

#A4374B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #A4374B

6.51:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##A4374B	#FFFFFF	#000000	##FFFFFF
##A4374B	1.00	6.51	3.23	6.51
#FFFFFF	6.51	1.00	21.00	1.00
#000000	3.23	21.00	1.00	21.00
##FFFFFF	6.51	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#51504B

Deuteranopia (green-blind)

#6D6648

Tritanopia (blue-blind)

#B3233F

Achromatopsia (no color)

#5E5E5E

Design tokens & code

CSS

--color: #a4374b;
/* rgb */ color: rgb(164, 55, 75);
/* oklch */ color: oklch(49.9% 0.143 13.1);

Tailwind

colors: {
  custom: {
    50: '#c4747d',
    500: '#a4374b',
    950: '#000000',
  },
}

SCSS

$custom: #a4374b;
$custom-light: #c4747d;
$custom-dark: #000000;

JSON

{
  "hex": "#a4374b",
  "rgb": {
    "r": 164,
    "g": 55,
    "b": 75
  },
  "hsl": {
    "h": 348.991,
    "s": 49.772,
    "l": 42.941
  },
  "oklch": {
    "l": 0.49919,
    "c": 0.1435,
    "h": 13.1
  },
  "luminance": 0.11133
}

Semantic roles & 50–950 ramp

primary

#A4374B

secondary

#79BEB1

accent

#D9C04F

background

#FCF7F7

surface

#F9EDEE

border

#D2C8C9

text

#140909

muted

#827B7B

Preview Lab

Preview with #A4374B

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

Preview Lab → · Contrast checker → · Palette generator →