#B6403B#B6403B

#B6403B is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.7% C 0.154 H 26.1°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#B6403B
RGB	rgb(182, 64, 59)
HSL	hsl(2, 51%, 47%)
HSV	hsv(2, 68%, 71%)
CMYK	cmyk(0%, 64.8%, 67.6%, 28.6%)
CIE-LAB	lab(44.13, 47.41, 28.98)
CIE-LCH	lch(44.13, 55.57, 31.44°)
OKLab	oklab(53.66% 0.1383 0.0677)
OKLCH	oklch(53.66% 0.154 26.1)
XYZ	xyz(21.9165, 13.9307, 5.6717)
Luminance	0.1393 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6403B #3BB1B6

analogous

#B63B74 #B6403B #B67E3B

triadic

#B6403B #3BB640 #403BB6

tetradic

#B6403B #74B63B #3BB1B6 #7E3BB6

square

#B6403B #74B63B #3BB1B6 #7E3BB6

split-complementary

#B6403B #3BB67E #3B74B6

monochromatic

#5A1F1D #88302C #B6403B #CC6662 #DB9390

Accessibility & contrast

On white

5.55

#B6403B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.79

#B6403B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6403B

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6403B	#FFFFFF	#000000	##FFFFFF
##B6403B	1.00	5.55	3.79	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.79	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#60583A

Deuteranopia (green-blind)

#7D7238

Tritanopia (blue-blind)

#C82440

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b6403b;
/* rgb */ color: rgb(182, 64, 59);
/* oklch */ color: oklch(53.7% 0.154 26.1);

Tailwind

colors: {
  custom: {
    50: '#d37b71',
    500: '#b6403b',
    950: '#000000',
  },
}

SCSS

$custom: #b6403b;
$custom-light: #d37b71;
$custom-dark: #000000;

JSON

{
  "hex": "#b6403b",
  "rgb": {
    "r": 182,
    "g": 64,
    "b": 59
  },
  "hsl": {
    "h": 2.439,
    "s": 51.037,
    "l": 47.255
  },
  "oklch": {
    "l": 0.53659,
    "c": 0.15401,
    "h": 26.1
  },
  "luminance": 0.13928
}

Semantic roles & 50–950 ramp

primary

#B6403B

secondary

#87C3C6

accent

#D5DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B6403B

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

Preview Lab → · Contrast checker → · Palette generator →