Recognised as Colour

#B23758

#B23758
Red
Dark
Nearest: Indian red

#B23758 is a red with RGB values 178, 55, 88 and HSL 344°, 53%, 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

#B23758#B23758

HEX#B23758

RGBrgb(178, 55, 88)

RGB (0–1)0.698, 0.2157, 0.3451

RGB percentages69.8%, 21.6%, 34.5%

HSLhsl(343.9, 52.8%, 45.7%)

HSV / HSBhsv(343.9, 69.1%, 69.8%)

CMYK0%, 69.1%, 50.6%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,679,576

CSS custom property--colour: #B23758;

Brightness & contrast

Relative luminance0.12902WCAG 2.x, 0 is black and 1 is white

Perceived brightness110.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.87:1

Contrast with white5.87:1WCAG normal text: AA

Contrast with black3.58:1WCAG normal text: Fail

Greyscale equivalent#545454

Inverted#4DC8A7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#545559no red cones; affects about 1% of men; ΔE 53.1 from the original

Deuteranopia#746E55no green cones; the most common form, about 1% of men; ΔE 54.4 from the original

Tritanopia#C22144no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

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

Contrast with white, large text5.87:1WCAG large text: AAA

Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Indian red · ΔE 18.3 Pale violetred · ΔE 20.9 Brown · ΔE 22.2 Light coral · ΔE 27.3 Firebrick · ΔE 29 Medium violet red · ΔE 30.9

Nearest named CSS colourIndian red (#CD5C5C)ΔE 18.34, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#37B291

Analogous#B23796, #B25337

Triadic#58B237, #3758B2

Split complementary#37B253, #3796B2

Tetradic#96B237, #37B291, #5337B2

Tints, shades & saturation

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

Lighter +40%#EEC7D2

Lighter +30%#E2A0B2

Lighter +20%#D67992

Lighter +10%#CA5272

Darker −10%#8B2B45

Darker −20%#641F31

Darker −30%#3D131E

Darker −40%#16070B

More saturated +25%#CF1A4B

Less saturated −25%#955465

Channel breakdown

R178

G55

B88

Red178 (69.8%)

Green55 (21.6%)

Blue88 (34.5%)

Hue343.9°

Saturation (HSL)52.79%

Lightness45.69%

Dominant channelRed

Hex per channelR B2 · G 37 · B 58

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B23758 (chemical formula)

Formula
256,823.98 g/mol
23758 atoms

B23758 has a molar mass of 256,823.98 g/mol, made up of 23758 atoms across 1 element: 23758 × B.

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Molar mass

Molar mass256,823.98 g/mol

Total atoms per molecule23758

Distinct elements1

Mass of one molecule4.2646625 × 10^-19 g

Molecules per gram2.3448514 × 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 × 23758)256,823.98 g/mol, 100%

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Elements in this formula

Boron

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