#BB312D#BB312D

#BB312D is a mid, vivid red. Relative luminance 0.130; OKLCH L 52.7% C 0.176 H 26.9°. Best body text is #FFFFFF at 5.85:1 contrast (WCAG AA passes).

Color values

HEX	#BB312D
RGB	rgb(187, 49, 45)
HSL	hsl(2, 61%, 45%)
HSV	hsv(2, 76%, 73%)
CMYK	cmyk(0%, 73.8%, 75.9%, 26.7%)
CIE-LAB	lab(42.69, 54.32, 35.72)
CIE-LCH	lch(42.69, 65.01, 33.33°)
OKLab	oklab(52.69% 0.1566 0.0795)
OKLCH	oklch(52.69% 0.176 26.9)
XYZ	xyz(22.0680, 12.9543, 3.8206)
Luminance	0.1295 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB312D #2DB7BB

analogous

#BB2D70 #BB312D #BB782D

triadic

#BB312D #2DBB31 #312DBB

tetradic

#BB312D #70BB2D #2DB7BB #782DBB

square

#BB312D #70BB2D #2DB7BB #782DBB

split-complementary

#BB312D #2DBB78 #2D70BB

monochromatic

#581715 #8A2421 #BB312D #D55450 #E18482

Accessibility & contrast

On white

5.85

#BB312D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.59

#BB312D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB312D

5.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB312D	#FFFFFF	#000000	##FFFFFF
##BB312D	1.00	5.85	3.59	5.85
#FFFFFF	5.85	1.00	21.00	1.00
#000000	3.59	21.00	1.00	21.00
##FFFFFF	5.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#5A522B

Deuteranopia (green-blind)

#7C7028

Tritanopia (blue-blind)

#CE0032

Achromatopsia (no color)

#656565

Design tokens & code

CSS

--color: #bb312d;
/* rgb */ color: rgb(187, 49, 45);
/* oklch */ color: oklch(52.7% 0.176 26.9);

Tailwind

colors: {
  custom: {
    50: '#d87466',
    500: '#bb312d',
    950: '#000000',
  },
}

SCSS

$custom: #bb312d;
$custom-light: #d87466;
$custom-dark: #000000;

JSON

{
  "hex": "#bb312d",
  "rgb": {
    "r": 187,
    "g": 49,
    "b": 45
  },
  "hsl": {
    "h": 1.69,
    "s": 61.207,
    "l": 45.49
  },
  "oklch": {
    "l": 0.52691,
    "c": 0.17557,
    "h": 26.9
  },
  "luminance": 0.12951
}

Semantic roles & 50–950 ramp

primary

#BB312D

secondary

#7AC8CA

accent

#E0E443

background

#FEF7F6

surface

#FDEDEB

border

#D5C8C6

text

#160906

muted

#847B7A

Preview Lab

Preview with #BB312D

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

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