#B0401B#B0401B

#B0401B is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.3% C 0.154 H 37.6°. Best body text is #FFFFFF at 5.84:1 contrast (WCAG AA passes).

Color values

HEX	#B0401B
RGB	rgb(176, 64, 27)
HSL	hsl(15, 73%, 40%)
HSV	hsv(15, 85%, 69%)
CMYK	cmyk(0%, 63.6%, 84.7%, 31%)
CIE-LAB	lab(42.73, 43.93, 44.48)
CIE-LCH	lch(42.73, 62.52, 45.35°)
OKLab	oklab(52.29% 0.1221 0.0939)
OKLCH	oklch(52.29% 0.154 37.6)
XYZ	xyz(19.9380, 12.9789, 2.4920)
Luminance	0.1298 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B0401B #1B8BB0

analogous

#B01B41 #B0401B #B08A1B

triadic

#B0401B #1BB040 #401BB0

tetradic

#B0401B #41B01B #1B8BB0 #8A1BB0

square

#B0401B #41B01B #1B8BB0 #8A1BB0

split-complementary

#B0401B #1BB08A #1B41B0

monochromatic

#46190B #7B2D13 #B0401B #DE572A #E6815F

Accessibility & contrast

On white

5.84

#B0401B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.60

#B0401B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B0401B

5.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B0401B	#FFFFFF	#000000	##FFFFFF
##B0401B	1.00	5.84	3.60	5.84
#FFFFFF	5.84	1.00	21.00	1.00
#000000	3.60	21.00	1.00	21.00
##FFFFFF	5.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605515

Deuteranopia (green-blind)

#7C6E15

Tritanopia (blue-blind)

#C22139

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #b0401b;
/* rgb */ color: rgb(176, 64, 27);
/* oklch */ color: oklch(52.3% 0.154 37.6);

Tailwind

colors: {
  custom: {
    50: '#d07a5b',
    500: '#b0401b',
    950: '#000000',
  },
}

SCSS

$custom: #b0401b;
$custom-light: #d07a5b;
$custom-dark: #000000;

JSON

{
  "hex": "#b0401b",
  "rgb": {
    "r": 176,
    "g": 64,
    "b": 27
  },
  "hsl": {
    "h": 14.899,
    "s": 73.399,
    "l": 39.804
  },
  "oklch": {
    "l": 0.52294,
    "c": 0.15398,
    "h": 37.6
  },
  "luminance": 0.12976
}

Semantic roles & 50–950 ramp

primary

#B0401B

secondary

#5CAFCB

accent

#C2F038

background

#FEF7F5

surface

#FCEEE9

border

#D5C9C5

text

#160904

muted

#847B79

Preview Lab

Preview with #B0401B

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

Preview Lab → · Contrast checker → · Palette generator →