Recognised as Colour

#BB2338

#BB2338
Red
Dark
Nearest: Brown

#BB2338 is a red with RGB values 187, 35, 56 and HSL 352°, 68%, 44%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#BB2338#BB2338

HEX#BB2338

RGBrgb(187, 35, 56)

RGB (0–1)0.7333, 0.1373, 0.2196

RGB percentages73.3%, 13.7%, 22%

HSLhsl(351.7, 68.5%, 43.5%)

HSV / HSBhsv(351.7, 81.3%, 73.3%)

CMYK0%, 81.3%, 70.1%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,264,248

CSS custom property--colour: #BB2338;

Brightness & contrast

Relative luminance0.12052WCAG 2.x, 0 is black and 1 is white

Perceived brightness107.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.16:1

Contrast with white6.16:1WCAG normal text: AA

Contrast with black3.41:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#44DCC7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#524D37no red cones; affects about 1% of men; ΔE 63.1 from the original

Deuteranopia#786D33no green cones; the most common form, about 1% of men; ΔE 63.3 from the original

Tritanopia#CE002Dno blue cones; rare, and affects men and women equally; ΔE 14.1 from the original

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

Contrast with white, large text6.16:1WCAG large text: AAA

Contrast with black, large text3.41:1WCAG large text: AA

Named colours

Brown · ΔE 10.6 Firebrick · ΔE 10.8 Crimson · ΔE 14.4 Indian red · ΔE 19.5 Dark red · ΔE 20.7 Maroon · ΔE 21.9

Nearest named CSS colourBrown (#A52A2A)ΔE 10.58, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#23BBA6

Analogous#BB2384, #BB5A23

Triadic#38BB23, #2338BB

Split complementary#23BB5A, #2384BB

Tetradic#84BB23, #23BBA6, #5A23BB

Tints, shades & saturation

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

Lighter +40%#F2B8C0

Lighter +30%#EA8D9A

Lighter +20%#E26274

Lighter +10%#DA374E

Darker −10%#901B2B

Darker −20%#65131E

Darker −30%#3A0B11

Darker −40%#0F0305

More saturated +25%#D70724

Less saturated −25%#9F3F4C

Channel breakdown

R187

G35

B56

Red187 (73.3%)

Green35 (13.7%)

Blue56 (22%)

Hue351.71°

Saturation (HSL)68.47%

Lightness43.53%

Dominant channelRed

Hex per channelR BB · G 23 · B 38

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB2338 (chemical formula)

Formula
25,284.59 g/mol
2339 atoms

BB2338 has a molar mass of 25,284.59 g/mol, made up of 2339 atoms across 1 element: 2339 × B.

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Molar mass

Molar mass25,284.59 g/mol

Total atoms per molecule2339

Distinct elements1

Mass of one molecule4.1986049 × 10^-20 g

Molecules per gram2.3817435 × 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 × 2339)25,284.59 g/mol, 100%

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Elements in this formula

Boron

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