#BB431D#BB431D

#BB431D is a mid, vivid red. Relative luminance 0.147; OKLCH L 54.5% C 0.162 H 37.1°. Best body text is #FFFFFF at 5.34:1 contrast (WCAG AA passes).

Color values

HEX	#BB431D
RGB	rgb(187, 67, 29)
HSL	hsl(14, 73%, 42%)
HSV	hsv(14, 84%, 73%)
CMYK	cmyk(0%, 64.2%, 84.5%, 26.7%)
CIE-LAB	lab(45.18, 46.62, 46.47)
CIE-LCH	lch(45.18, 65.83, 44.91°)
OKLab	oklab(54.51% 0.1297 0.0979)
OKLCH	oklch(54.51% 0.162 37.1)
XYZ	xyz(22.7250, 14.6711, 2.7974)
Luminance	0.1467 (WCAG relative)
Temperature	warm
Family	red

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#BB431D #1D95BB

analogous

#BB1D46 #BB431D #BB921D

triadic

#BB431D #1DBB43 #431DBB

tetradic

#BB431D #46BB1D #1D95BB #921DBB

square

#BB431D #46BB1D #1D95BB #921DBB

split-complementary

#BB431D #1DBB92 #1D46BB

monochromatic

#511D0D #863015 #BB431D #E05E35 #E8896A

Accessibility & contrast

On white

5.34

#BB431D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.93

#BB431D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #BB431D

5.34:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##BB431D	#FFFFFF	#000000	##FFFFFF
##BB431D	1.00	5.34	3.93	5.34
#FFFFFF	5.34	1.00	21.00	1.00
#000000	3.93	21.00	1.00	21.00
##FFFFFF	5.34	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#665A17

Deuteranopia (green-blind)

#837517

Tritanopia (blue-blind)

#CE213C

Achromatopsia (no color)

#6B6B6B

Design tokens & code

CSS

--color: #bb431d;
/* rgb */ color: rgb(187, 67, 29);
/* oklch */ color: oklch(54.5% 0.162 37.1);

Tailwind

colors: {
  custom: {
    50: '#d87c5d',
    500: '#bb431d',
    950: '#000000',
  },
}

SCSS

$custom: #bb431d;
$custom-light: #d87c5d;
$custom-dark: #000000;

JSON

{
  "hex": "#bb431d",
  "rgb": {
    "r": 187,
    "g": 67,
    "b": 29
  },
  "hsl": {
    "h": 14.43,
    "s": 73.148,
    "l": 42.353
  },
  "oklch": {
    "l": 0.54509,
    "c": 0.16248,
    "h": 37.1
  },
  "luminance": 0.14668
}

Semantic roles & 50–950 ramp

primary

#BB431D

secondary

#66B5CE

accent

#C4F038

background

#FEF7F5

surface

#FDEEE9

border

#D5C9C5

text

#160A04

muted

#847C79

Preview Lab

Preview with #BB431D

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

Preview Lab → · Contrast checker → · Palette generator →