Recognised as Colour

#B53455

#B53455
Red
Dark
Nearest: Indian red

#B53455 is a red with RGB values 181, 52, 85 and HSL 345°, 55%, 46%. 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

#B53455#B53455

HEX#B53455

RGBrgb(181, 52, 85)

RGB (0–1)0.7098, 0.2039, 0.3333

RGB percentages71%, 20.4%, 33.3%

HSLhsl(344.7, 55.4%, 45.7%)

HSV / HSBhsv(344.7, 71.3%, 71%)

CMYK0%, 71.3%, 53%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,875,413

CSS custom property--colour: #B53455;

Brightness & contrast

Relative luminance0.12936WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.85:1

Contrast with white5.85:1WCAG normal text: AA

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

Greyscale equivalent#525252

Inverted#4ACBAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#545456no red cones; affects about 1% of men; ΔE 55.2 from the original

Deuteranopia#756E52no green cones; the most common form, about 1% of men; ΔE 56.2 from the original

Tritanopia#C51841no blue cones; rare, and affects men and women equally; ΔE 17 from the original

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

Contrast with white, large text5.85:1WCAG large text: AAA

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

Named colours

Indian red · ΔE 17.8 Brown · ΔE 20.5 Pale violetred · ΔE 22.4 Firebrick · ΔE 26.9 Light coral · ΔE 27.3 Crimson · ΔE 28.6

Nearest named CSS colourIndian red (#CD5C5C)ΔE 17.77, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#34B594

Analogous#B53495, #B55434

Triadic#55B534, #3455B5

Split complementary#34B554, #3495B5

Tetradic#95B534, #34B594, #5434B5

Tints, shades & saturation

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

Lighter +40%#EFC6D1

Lighter +30%#E39FB0

Lighter +20%#D87790

Lighter +10%#CD4F6F

Darker −10%#8D2942

Darker −20%#661D30

Darker −30%#3E121D

Darker −40%#17060B

More saturated +25%#D21747

Less saturated −25%#985163

Channel breakdown

R181

G52

B85

Red181 (71%)

Green52 (20.4%)

Blue85 (33.3%)

Hue344.65°

Saturation (HSL)55.36%

Lightness45.69%

Dominant channelRed

Hex per channelR B5 · G 34 · B 55

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B53455 (chemical formula)

Formula
577,848.55 g/mol
53455 atoms

B53455 has a molar mass of 577,848.55 g/mol, made up of 53455 atoms across 1 element: 53455 × B.

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Molar mass

Molar mass577,848.55 g/mol

Total atoms per molecule53455

Distinct elements1

Mass of one molecule9.5954009 × 10^-19 g

Molecules per gram1.0421659 × 10^18

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 × 53455)577,848.55 g/mol, 100%

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Elements in this formula

Boron

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