#B1403E#B1403E

#B1403E is a mid, vivid red. Relative luminance 0.134; OKLCH L 52.9% C 0.148 H 24.6°. Best body text is #FFFFFF at 5.72:1 contrast (WCAG AA passes).

Color values

HEX	#B1403E
RGB	rgb(177, 64, 62)
HSL	hsl(1, 48%, 47%)
HSV	hsv(1, 65%, 69%)
CMYK	cmyk(0%, 63.8%, 65%, 30.6%)
CIE-LAB	lab(43.31, 45.85, 25.98)
CIE-LCH	lch(43.31, 52.70, 29.54°)
OKLab	oklab(52.89% 0.1346 0.0616)
OKLCH	oklch(52.89% 0.148 24.6)
XYZ	xyz(20.8364, 13.3645, 6.0389)
Luminance	0.1336 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B1403E #3EAFB1

analogous

#B13E76 #B1403E #B1793E

triadic

#B1403E #3EB140 #403EB1

tetradic

#B1403E #76B13E #3EAFB1 #793EB1

square

#B1403E #76B13E #3EAFB1 #793EB1

split-complementary

#B1403E #3EB179 #3E76B1

monochromatic

#561F1E #84302E #B1403E #C96564 #D89291

Accessibility & contrast

On white

5.72

#B1403E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.67

#B1403E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B1403E

5.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B1403E	#FFFFFF	#000000	##FFFFFF
##B1403E	1.00	5.72	3.67	5.72
#FFFFFF	5.72	1.00	21.00	1.00
#000000	3.67	21.00	1.00	21.00
##FFFFFF	5.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5E573D

Deuteranopia (green-blind)

#7A6F3B

Tritanopia (blue-blind)

#C22741

Achromatopsia (no color)

#666666

Design tokens & code

CSS

--color: #b1403e;
/* rgb */ color: rgb(177, 64, 62);
/* oklch */ color: oklch(52.9% 0.148 24.6);

Tailwind

colors: {
  custom: {
    50: '#cf7a73',
    500: '#b1403e',
    950: '#000000',
  },
}

SCSS

$custom: #b1403e;
$custom-light: #cf7a73;
$custom-dark: #000000;

JSON

{
  "hex": "#b1403e",
  "rgb": {
    "r": 177,
    "g": 64,
    "b": 62
  },
  "hsl": {
    "h": 1.043,
    "s": 48.117,
    "l": 46.863
  },
  "oklch": {
    "l": 0.52889,
    "c": 0.14802,
    "h": 24.6
  },
  "luminance": 0.13362
}

Semantic roles & 50–950 ramp

primary

#B1403E

secondary

#87C3C4

accent

#D5D850

background

#FDF7F7

surface

#FBEEED

border

#D4C9C8

text

#150A08

muted

#837C7B

Preview Lab

Preview with #B1403E

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

Preview Lab → · Contrast checker → · Palette generator →