#B11E1B#B11E1B

#B11E1B is a mid, vivid red. Relative luminance 0.104; OKLCH L 49.1% C 0.182 H 27.9°. Best body text is #FFFFFF at 6.84:1 contrast (WCAG AA passes).

Color values

HEX	#B11E1B
RGB	rgb(177, 30, 27)
HSL	hsl(1, 74%, 40%)
HSV	hsv(1, 85%, 69%)
CMYK	cmyk(0%, 83.1%, 84.7%, 30.6%)
CIE-LAB	lab(38.48, 56.49, 40.75)
CIE-LCH	lch(38.48, 69.65, 35.81°)
OKLab	oklab(49.15% 0.1609 0.0853)
OKLCH	oklch(49.15% 0.182 27.9)
XYZ	xyz(18.7959, 10.3579, 2.0463)
Luminance	0.1036 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#B11E1B #1BAEB1

analogous

#B11B63 #B11E1B #B1691B

triadic

#B11E1B #1BB11E #1E1BB1

tetradic

#B11E1B #63B11B #1BAEB1 #691BB1

square

#B11E1B #63B11B #1BAEB1 #691BB1

split-complementary

#B11E1B #1BB169 #1B63B1

monochromatic

#470C0B #7C1513 #B11E1B #DF2E2B #E76260

Accessibility & contrast

On white

6.84

#B11E1B on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#B11E1B on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #B11E1B

6.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##B11E1B	#FFFFFF	#000000	##FFFFFF
##B11E1B	1.00	6.84	3.07	6.84
#FFFFFF	6.84	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4F4618

Deuteranopia (green-blind)

#736612

Tritanopia (blue-blind)

#C40020

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #b11e1b;
/* rgb */ color: rgb(177, 30, 27);
/* oklch */ color: oklch(49.1% 0.182 27.9);

Tailwind

colors: {
  custom: {
    50: '#d26a59',
    500: '#b11e1b',
    950: '#000000',
  },
}

SCSS

$custom: #b11e1b;
$custom-light: #d26a59;
$custom-dark: #000000;

JSON

{
  "hex": "#b11e1b",
  "rgb": {
    "r": 177,
    "g": 30,
    "b": 27
  },
  "hsl": {
    "h": 1.2,
    "s": 73.529,
    "l": 40
  },
  "oklch": {
    "l": 0.49146,
    "c": 0.18212,
    "h": 27.9
  },
  "luminance": 0.10355
}

Semantic roles & 50–950 ramp

primary

#B11E1B

secondary

#5DC9CB

accent

#EDF038

background

#FEF6F5

surface

#FCECE9

border

#D5C7C5

text

#160703

muted

#847A78

Preview Lab

Preview with #B11E1B

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

Preview Lab → · Contrast checker → · Palette generator →