#B4282F#B4282F

#B4282F is a mid, vivid red. Relative luminance 0.114; OKLCH L 50.7% C 0.176 H 23.9°. Best body text is #FFFFFF at 6.39:1 contrast (WCAG AA passes).

Color values

HEX	#B4282F
RGB	rgb(180, 40, 47)
HSL	hsl(357, 64%, 43%)
HSV	hsv(357, 78%, 71%)
CMYK	cmyk(0%, 77.8%, 73.9%, 29.4%)
CIE-LAB	lab(40.29, 55.23, 31.49)
CIE-LCH	lch(40.29, 63.57, 29.69°)
OKLab	oklab(50.67% 0.1607 0.0712)
OKLCH	oklch(50.67% 0.176 23.9)
XYZ	xyz(20.0966, 11.4293, 3.8367)
Luminance	0.1143 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B4282F #28B4AD

analogous

#B42875 #B4282F #B46728

triadic

#B4282F #2FB428 #282FB4

tetradic

#B4282F #75B428 #28B4AD #6728B4

square

#B4282F #75B428 #28B4AD #6728B4

split-complementary

#B4282F #28B467 #2875B4

monochromatic

#501215 #821D22 #B4282F #D5444B #E1767B

Accessibility & contrast

On white

6.39

#B4282F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.29

#B4282F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B4282F

6.39:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B4282F	#FFFFFF	#000000	##FFFFFF
##B4282F	1.00	6.39	3.29	6.39
#FFFFFF	6.39	1.00	21.00	1.00
#000000	3.29	21.00	1.00	21.00
##FFFFFF	6.39	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#534C2E

Deuteranopia (green-blind)

#756A2A

Tritanopia (blue-blind)

#C6002C

Achromatopsia (no color)

#5F5F5F

Design tokens & code

CSS

--color: #b4282f;
/* rgb */ color: rgb(180, 40, 47);
/* oklch */ color: oklch(50.7% 0.176 23.9);

Tailwind

colors: {
  custom: {
    50: '#d36f67',
    500: '#b4282f',
    950: '#000000',
  },
}

SCSS

$custom: #b4282f;
$custom-light: #d36f67;
$custom-dark: #000000;

JSON

{
  "hex": "#b4282f",
  "rgb": {
    "r": 180,
    "g": 40,
    "b": 47
  },
  "hsl": {
    "h": 357,
    "s": 63.636,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50669,
    "c": 0.17579,
    "h": 23.9
  },
  "luminance": 0.11426
}

Semantic roles & 50–950 ramp

primary

#B4282F

secondary

#70C8C4

accent

#E7DE41

background

#FEF7F6

surface

#FCEDEB

border

#D5C8C6

text

#160806

muted

#847B7A

Preview Lab

Preview with #B4282F

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

Preview Lab → · Contrast checker → · Palette generator →