Recognised as Colour

#B2232B

#B2232B
Red
Dark
Nearest: Firebrick

#B2232B is a red with RGB values 178, 35, 43 and HSL 357°, 67%, 42%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#B2232B#B2232B

HEX#B2232B

RGBrgb(178, 35, 43)

RGB (0–1)0.698, 0.1373, 0.1686

RGB percentages69.8%, 13.7%, 16.9%

HSLhsl(356.6, 67.1%, 41.8%)

HSV / HSBhsv(356.6, 80.3%, 69.8%)

CMYK0%, 80.3%, 75.8%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,674,411

CSS custom property--colour: #B2232B;

Brightness & contrast

Relative luminance0.10841WCAG 2.x, 0 is black and 1 is white

Perceived brightness102 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.63:1

Contrast with white6.63:1WCAG normal text: AA

Contrast with black3.17:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#4DDCD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#50492Ano red cones; affects about 1% of men; ΔE 60.2 from the original

Deuteranopia#736825no green cones; the most common form, about 1% of men; ΔE 60.7 from the original

Tritanopia#C40028no blue cones; rare, and affects men and women equally; ΔE 11.6 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.63:1WCAG large text: AAA

Contrast with black, large text3.17:1WCAG large text: AA

Named colours

Firebrick · ΔE 5 Brown · ΔE 6.8 Dark red · ΔE 15 Maroon · ΔE 16.8 Crimson · ΔE 16.9 Indian red · ΔE 20.8

Nearest named CSS colourFirebrick (#B22222)ΔE 4.99, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#23B2AA

Analogous#B22373, #B26223

Triadic#2BB223, #232BB2

Split complementary#23B263, #2373B2

Tetradic#73B223, #23B2AA, #6223B2

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#F0B1B5

Lighter +30%#E7878C

Lighter +20%#DF5C63

Lighter +10%#D7313B

Darker −10%#871B21

Darker −20%#5D1216

Darker −30%#320A0C

Darker −40%#080102

More saturated +25%#CD0813

Less saturated −25%#973E43

Channel breakdown

R178

G35

B43

Red178 (69.8%)

Green35 (13.7%)

Blue43 (16.9%)

Hue356.64°

Saturation (HSL)67.14%

Lightness41.76%

Dominant channelRed

Hex per channelR B2 · G 23 · B 2B

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

B2232B (chemical formula)

Formula
24,138.73 g/mol
2233 atoms

B2232B has a molar mass of 24,138.73 g/mol, made up of 2233 atoms across 1 element: 2233 × B.

Open this reading on its own page →

Molar mass

Molar mass24,138.73 g/mol

Total atoms per molecule2233

Distinct elements1

Mass of one molecule4.0083304 × 10^-20 g

Molecules per gram2.4948043 × 10^19

Name

NameNot in the name tablea name cannot be worked out from a formula alone: isomers share formulas, and naming depends on bonding the formula does not show

Composition by mass

B100%

Boron (B × 2233)24,138.73 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Boron

Nerdulate something else

Nothing in mind? Surprise me · today’s page