#B6403A#B6403A

#B6403A is a mid, vivid red. Relative luminance 0.139; OKLCH L 53.6% C 0.154 H 26.5°. Best body text is #FFFFFF at 5.55:1 contrast (WCAG AA passes).

Color values

HEX	#B6403A
RGB	rgb(182, 64, 58)
HSL	hsl(3, 52%, 47%)
HSV	hsv(3, 68%, 71%)
CMYK	cmyk(0%, 64.8%, 68.1%, 28.6%)
CIE-LAB	lab(44.12, 47.35, 29.56)
CIE-LCH	lch(44.12, 55.82, 31.97°)
OKLab	oklab(53.64% 0.1379 0.0689)
OKLCH	oklch(53.64% 0.154 26.5)
XYZ	xyz(21.8908, 13.9204, 5.5364)
Luminance	0.1392 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B6403A #3AB0B6

analogous

#B63A72 #B6403A #B67E3A

triadic

#B6403A #3AB640 #403AB6

tetradic

#B6403A #72B63A #3AB0B6 #7E3AB6

square

#B6403A #72B63A #3AB0B6 #7E3AB6

split-complementary

#B6403A #3AB67E #3A72B6

monochromatic

#591F1C #88302B #B6403A #CD6661 #DB938F

Accessibility & contrast

On white

5.55

#B6403A on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.78

#B6403A on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B6403A

5.55:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B6403A	#FFFFFF	#000000	##FFFFFF
##B6403A	1.00	5.55	3.78	5.55
#FFFFFF	5.55	1.00	21.00	1.00
#000000	3.78	21.00	1.00	21.00
##FFFFFF	5.55	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#605839

Deuteranopia (green-blind)

#7D7237

Tritanopia (blue-blind)

#C82440

Achromatopsia (no color)

#686868

Design tokens & code

CSS

--color: #b6403a;
/* rgb */ color: rgb(182, 64, 58);
/* oklch */ color: oklch(53.6% 0.154 26.5);

Tailwind

colors: {
  custom: {
    50: '#d37b70',
    500: '#b6403a',
    950: '#000000',
  },
}

SCSS

$custom: #b6403a;
$custom-light: #d37b70;
$custom-dark: #000000;

JSON

{
  "hex": "#b6403a",
  "rgb": {
    "r": 182,
    "g": 64,
    "b": 58
  },
  "hsl": {
    "h": 2.903,
    "s": 51.667,
    "l": 47.059
  },
  "oklch": {
    "l": 0.53643,
    "c": 0.15417,
    "h": 26.5
  },
  "luminance": 0.13917
}

Semantic roles & 50–950 ramp

primary

#B6403A

secondary

#86C3C6

accent

#D4DB4D

background

#FDF7F6

surface

#FBEEEC

border

#D4C9C7

text

#150A07

muted

#837C7A

Preview Lab

Preview with #B6403A

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

Preview Lab → · Contrast checker → · Palette generator →