Recognised as Colour

#B4455B

#B4455B
Red
Dark
Nearest: Indian red

#B4455B is a red with RGB values 180, 69, 91 and HSL 348°, 45%, 49%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B4455B#B4455B

HEX#B4455B

RGBrgb(180, 69, 91)

RGB (0–1)0.7059, 0.2706, 0.3569

RGB percentages70.6%, 27.1%, 35.7%

HSLhsl(348.1, 44.6%, 48.8%)

HSV / HSBhsv(348.1, 61.7%, 70.6%)

CMYK0%, 61.7%, 49.4%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,814,235

CSS custom property--colour: #B4455B;

Brightness & contrast

Relative luminance0.14715WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.33:1

Contrast with white5.33:1WCAG normal text: AA

Contrast with black3.94:1WCAG normal text: Fail

Greyscale equivalent#5E5E5E

Inverted#4BBAA4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5D5Bno red cones; affects about 1% of men; ΔE 48.2 from the original

Deuteranopia#7A7358no green cones; the most common form, about 1% of men; ΔE 49.2 from the original

Tritanopia#C4354Dno blue cones; rare, and affects men and women equally; ΔE 14 from the original

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

Contrast with white, large text5.33:1WCAG large text: AAA

Contrast with black, large text3.94:1WCAG large text: AA

Named colours

Indian red · ΔE 14 Pale violetred · ΔE 18.7 Brown · ΔE 21.2 Light coral · ΔE 23 Salmon · ΔE 28.6 Firebrick · ΔE 28.8

Nearest named CSS colourIndian red (#CD5C5C)ΔE 13.96, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45B49E

Analogous#B44593, #B46745

Triadic#5BB445, #455BB4

Split complementary#45B467, #4593B4

Tetradic#93B445, #45B49E, #6745B4

Tints, shades & saturation

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

Lighter +40%#EFD6DB

Lighter +30%#E1B1BA

Lighter +20%#D38C9A

Lighter +10%#C5677A

Darker −10%#8F3748

Darker −20%#6A2936

Darker −30%#451B23

Darker −40%#210C10

More saturated +25%#D32648

Less saturated −25%#95646E

Channel breakdown

R180

G69

B91

Red180 (70.6%)

Green69 (27.1%)

Blue91 (35.7%)

Hue348.11°

Saturation (HSL)44.58%

Lightness48.82%

Dominant channelRed

Hex per channelR B4 · G 45 · B 5B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B4455B (chemical formula)

Formula
48,169.36 g/mol
4456 atoms

B4455B has a molar mass of 48,169.36 g/mol, made up of 4456 atoms across 1 element: 4456 × B.

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Molar mass

Molar mass48,169.36 g/mol

Total atoms per molecule4456

Distinct elements1

Mass of one molecule7.9987104 × 10^-20 g

Molecules per gram1.2502015 × 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 × 4456)48,169.36 g/mol, 100%

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Elements in this formula

Boron

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