#B4383F#B4383F

#B4383F is a mid, vivid red. Relative luminance 0.129; OKLCH L 52.5% C 0.160 H 21.5°. Best body text is #FFFFFF at 5.87:1 contrast (WCAG AA passes).

Color values

HEX	#B4383F
RGB	rgb(180, 56, 63)
HSL	hsl(357, 53%, 46%)
HSV	hsv(357, 69%, 71%)
CMYK	cmyk(0%, 68.9%, 65%, 29.4%)
CIE-LAB	lab(42.60, 50.33, 24.61)
CIE-LCH	lch(42.60, 56.02, 26.05°)
OKLab	oklab(52.47% 0.1486 0.0585)
OKLCH	oklch(52.47% 0.16 21.5)
XYZ	xyz(21.1359, 12.8935, 6.0774)
Luminance	0.1289 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4383F #38B4AD

analogous

#B4387D #B4383F #B46F38

triadic

#B4383F #3FB438 #383FB4

tetradic

#B4383F #7DB438 #38B4AD #6F38B4

square

#B4383F #7DB438 #38B4AD #6F38B4

split-complementary

#B4383F #38B46F #387DB4

monochromatic

#571B1E #85292F #B4383F #CD5D63 #DB8B90

Accessibility & contrast

On white

5.87

#B4383F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.58

#B4383F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4383F

5.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4383F	#FFFFFF	#000000	##FFFFFF
##B4383F	1.00	5.87	3.58	5.87
#FFFFFF	5.87	1.00	21.00	1.00
#000000	3.58	21.00	1.00	21.00
##FFFFFF	5.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#59543E

Deuteranopia (green-blind)

#796E3C

Tritanopia (blue-blind)

#C5173C

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b4383f;
/* rgb */ color: rgb(180, 56, 63);
/* oklch */ color: oklch(52.5% 0.160 21.5);

Tailwind

colors: {
  custom: {
    50: '#d17674',
    500: '#b4383f',
    950: '#000000',
  },
}

SCSS

$custom: #b4383f;
$custom-light: #d17674;
$custom-dark: #000000;

JSON

{
  "hex": "#b4383f",
  "rgb": {
    "r": 180,
    "g": 56,
    "b": 63
  },
  "hsl": {
    "h": 356.613,
    "s": 52.542,
    "l": 46.275
  },
  "oklch": {
    "l": 0.52466,
    "c": 0.1597,
    "h": 21.5
  },
  "luminance": 0.12891
}

Semantic roles & 50–950 ramp

primary

#B4383F

secondary

#82C5C2

accent

#DCD44C

background

#FDF7F7

surface

#FBEDED

border

#D4C8C8

text

#150908

muted

#837B7B

Preview Lab

Preview with #B4383F

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

Preview Lab → · Contrast checker → · Palette generator →