Recognised as Colour

#BB2B54

#BB2B54
Red
Dark
Nearest: Indian red

#BB2B54 is a red with RGB values 187, 43, 84 and HSL 343°, 63%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#BB2B54#BB2B54

HEX#BB2B54

RGBrgb(187, 43, 84)

RGB (0–1)0.7333, 0.1686, 0.3294

RGB percentages73.3%, 16.9%, 32.9%

HSLhsl(342.9, 62.6%, 45.1%)

HSV / HSBhsv(342.9, 77%, 73.3%)

CMYK0%, 77%, 55.1%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,266,324

CSS custom property--colour: #BB2B54;

Brightness & contrast

Relative luminance0.12933WCAG 2.x, 0 is black and 1 is white

Perceived brightness111.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.86:1

Contrast with white5.86:1WCAG normal text: AA

Contrast with black3.59:1WCAG normal text: Fail

Greyscale equivalent#4D4D4D

Inverted#44D4AB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#515255no red cones; affects about 1% of men; ΔE 60.4 from the original

Deuteranopia#776F50no green cones; the most common form, about 1% of men; ΔE 61.1 from the original

Tritanopia#CC003Dno blue cones; rare, and affects men and women equally; ΔE 18.7 from the original

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

Contrast with white, large text5.86:1WCAG large text: AAA

Contrast with black, large text3.59:1WCAG large text: AA

Named colours

Indian red · ΔE 20.2 Brown · ΔE 21.3 Pale violetred · ΔE 24.9 Crimson · ΔE 25.4 Firebrick · ΔE 26.1 Light coral · ΔE 29.3

Nearest named CSS colourIndian red (#CD5C5C)ΔE 20.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2BBB92

Analogous#BB2B9C, #BB4A2B

Triadic#54BB2B, #2B54BB

Split complementary#2BBB4A, #2B9CBB

Tetradic#9CBB2B, #2BBB92, #4A2BBB

Tints, shades & saturation

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

Lighter +40%#F1C1CF

Lighter +30%#E798AE

Lighter +20%#DE6E8E

Lighter +10%#D4456E

Darker −10%#922141

Darker −20%#68182F

Darker −30%#3F0E1C

Darker −40%#150509

More saturated +25%#D80E48

Less saturated −25%#9E4860

Channel breakdown

R187

G43

B84

Red187 (73.3%)

Green43 (16.9%)

Blue84 (32.9%)

Hue342.92°

Saturation (HSL)62.61%

Lightness45.1%

Dominant channelRed

Hex per channelR BB · G 2B · B 54

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB2B54 (chemical formula)

Formula
616.17 g/mol
57 atoms

BB2B54 has a molar mass of 616.17 g/mol, made up of 57 atoms across 1 element: 57 × B.

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Molar mass

Molar mass616.17 g/mol

Total atoms per molecule57

Distinct elements1

Mass of one molecule1.0231744 × 10^-21 g

Molecules per gram9.7735053 × 10^20

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 × 57)616.17 g/mol, 100%

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Elements in this formula

Boron

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