#B4152F#B4152F

#B4152F is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.4% C 0.188 H 20.9°. Best body text is #FFFFFF at 6.80:1 contrast (WCAG AA passes).

Color values

HEX	#B4152F
RGB	rgb(180, 21, 47)
HSL	hsl(350, 79%, 39%)
HSV	hsv(350, 88%, 71%)
CMYK	cmyk(0%, 88.3%, 73.9%, 29.4%)
CIE-LAB	lab(38.63, 59.93, 29.58)
CIE-LCH	lch(38.63, 66.83, 26.26°)
OKLab	oklab(49.44% 0.1758 0.067)
OKLCH	oklch(49.44% 0.188 20.9)
XYZ	xyz(19.6060, 10.4481, 3.6731)
Luminance	0.1045 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4152F #15B49A

analogous

#B4157E #B4152F #B44B15

triadic

#B4152F #2FB415 #152FB4

tetradic

#B4152F #7EB415 #15B49A #4B15B4

square

#B4152F #7EB415 #15B49A #4B15B4

split-complementary

#B4152F #15B44B #157EB4

monochromatic

#460812 #7D0F21 #B4152F #E52141 #EC5870

Accessibility & contrast

On white

6.80

#B4152F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.09

#B4152F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4152F

6.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4152F	#FFFFFF	#000000	##FFFFFF
##B4152F	1.00	6.80	3.09	6.80
#FFFFFF	6.80	1.00	21.00	1.00
#000000	3.09	21.00	1.00	21.00
##FFFFFF	6.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C462E

Deuteranopia (green-blind)

#726629

Tritanopia (blue-blind)

#C60022

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b4152f;
/* rgb */ color: rgb(180, 21, 47);
/* oklch */ color: oklch(49.4% 0.188 20.9);

Tailwind

colors: {
  custom: {
    50: '#d46967',
    500: '#b4152f',
    950: '#000000',
  },
}

SCSS

$custom: #b4152f;
$custom-light: #d46967;
$custom-dark: #000000;

JSON

{
  "hex": "#b4152f",
  "rgb": {
    "r": 180,
    "g": 21,
    "b": 47
  },
  "hsl": {
    "h": 350.189,
    "s": 79.104,
    "l": 39.412
  },
  "oklch": {
    "l": 0.49441,
    "c": 0.1881,
    "h": 20.9
  },
  "luminance": 0.10445
}

Semantic roles & 50–950 ramp

primary

#B4152F

secondary

#56CFBB

accent

#F6D632

background

#FEF6F6

surface

#FCECEB

border

#D5C7C6

text

#160706

muted

#847A7A

Preview Lab

Preview with #B4152F

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

Preview Lab → · Contrast checker → · Palette generator →