Recognised as Colour

#B52253

#B52253
Red
Dark
Nearest: Indian red

#B52253 is a red with RGB values 181, 34, 83 and HSL 340°, 68%, 42%. It is a dark colour, so white text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B52253#B52253

HEX#B52253

RGBrgb(181, 34, 83)

RGB (0–1)0.7098, 0.1333, 0.3255

RGB percentages71%, 13.3%, 32.5%

HSLhsl(340, 68.4%, 42.2%)

HSV / HSBhsv(340, 81.2%, 71%)

CMYK0%, 81.2%, 54.1%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,870,803

CSS custom property--colour: #B52253;

Brightness & contrast

Relative luminance0.11592WCAG 2.x, 0 is black and 1 is white

Perceived brightness106.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.33:1

Contrast with white6.33:1WCAG normal text: AA

Contrast with black3.32:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#4ADDAC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4B4D54no red cones; affects about 1% of men; ΔE 60.7 from the original

Deuteranopia#716A4Fno green cones; the most common form, about 1% of men; ΔE 61.8 from the original

Tritanopia#C60038no blue cones; rare, and affects men and women equally; ΔE 20.8 from the original

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

Contrast with white, large text6.33:1WCAG large text: AAA

Contrast with black, large text3.32:1WCAG large text: AA

Named colours

Indian red · ΔE 23.2 Brown · ΔE 23.4 Pale violetred · ΔE 26 Medium violet red · ΔE 27.5 Crimson · ΔE 27.6 Firebrick · ΔE 28.5

Nearest named CSS colourIndian red (#CD5C5C)ΔE 23.17, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#22B584

Analogous#B5229C, #B53A22

Triadic#53B522, #2253B5

Split complementary#22B53A, #229DB5

Tetradic#9DB522, #22B584, #3B22B5

Tints, shades & saturation

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

Lighter +40%#F1B2C7

Lighter +30%#E987A8

Lighter +20%#E05D89

Lighter +10%#D83269

Darker −10%#8A1A3F

Darker −20%#5F122C

Darker −30%#340A18

Darker −40%#090204

More saturated +25%#D0074A

Less saturated −25%#9A3D5C

Channel breakdown

R181

G34

B83

Red181 (71%)

Green34 (13.3%)

Blue83 (32.5%)

Hue340°

Saturation (HSL)68.37%

Lightness42.16%

Dominant channelRed

Hex per channelR B5 · G 22 · B 53

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B52253 (chemical formula)

Formula
564,854.93 g/mol
52253 atoms

B52253 has a molar mass of 564,854.93 g/mol, made up of 52253 atoms across 1 element: 52253 × B.

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Molar mass

Molar mass564,854.93 g/mol

Total atoms per molecule52253

Distinct elements1

Mass of one molecule9.3796368 × 10^-19 g

Molecules per gram1.0661394 × 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 × 52253)564,854.93 g/mol, 100%

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Elements in this formula

Boron

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