#B2431F#B2431F

#B2431F is a mid, vivid red. Relative luminance 0.136; OKLCH L 53.0% C 0.153 H 37.6°. Best body text is #FFFFFF at 5.65:1 contrast (WCAG AA passes).

Color values

HEX	#B2431F
RGB	rgb(178, 67, 31)
HSL	hsl(15, 70%, 41%)
HSV	hsv(15, 83%, 70%)
CMYK	cmyk(0%, 62.4%, 82.6%, 30.2%)
CIE-LAB	lab(43.63, 43.41, 43.55)
CIE-LCH	lch(43.63, 61.49, 45.09°)
OKLab	oklab(53.04% 0.1209 0.093)
OKLCH	oklch(53.04% 0.153 37.6)
XYZ	xyz(20.6169, 13.5812, 2.8319)
Luminance	0.1358 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B2431F #1F8EB2

analogous

#B21F44 #B2431F #B28C1F

triadic

#B2431F #1FB243 #431FB2

tetradic

#B2431F #44B21F #1F8EB2 #8C1FB2

square

#B2431F #44B21F #1F8EB2 #8C1FB2

split-complementary

#B2431F #1FB28C #1F44B2

monochromatic

#4A1C0D #7E2F16 #B2431F #DB5C33 #E58667

Accessibility & contrast

On white

5.65

#B2431F on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.72

#B2431F on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B2431F

5.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B2431F	#FFFFFF	#000000	##FFFFFF
##B2431F	1.00	5.65	3.72	5.65
#FFFFFF	5.65	1.00	21.00	1.00
#000000	3.72	21.00	1.00	21.00
##FFFFFF	5.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#635819

Deuteranopia (green-blind)

#7E701A

Tritanopia (blue-blind)

#C4263C

Achromatopsia (no color)

#676767

Design tokens & code

CSS

--color: #b2431f;
/* rgb */ color: rgb(178, 67, 31);
/* oklch */ color: oklch(53.0% 0.153 37.6);

Tailwind

colors: {
  custom: {
    50: '#d17c5e',
    500: '#b2431f',
    950: '#000000',
  },
}

SCSS

$custom: #b2431f;
$custom-light: #d17c5e;
$custom-dark: #000000;

JSON

{
  "hex": "#b2431f",
  "rgb": {
    "r": 178,
    "g": 67,
    "b": 31
  },
  "hsl": {
    "h": 14.694,
    "s": 70.335,
    "l": 40.98
  },
  "oklch": {
    "l": 0.53045,
    "c": 0.15256,
    "h": 37.6
  },
  "luminance": 0.13578
}

Semantic roles & 50–950 ramp

primary

#B2431F

secondary

#63B1CA

accent

#C1ED3B

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160A04

muted

#847C79

Preview Lab

Preview with #B2431F

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

Preview Lab → · Contrast checker → · Palette generator →