Recognised as Colour

#B42755

#B42755
Red
Dark
Nearest: Indian red

#B42755 is a red with RGB values 180, 39, 85 and HSL 340°, 64%, 43%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#B42755#B42755

HEX#B42755

RGBrgb(180, 39, 85)

RGB (0–1)0.7059, 0.1529, 0.3333

RGB percentages70.6%, 15.3%, 33.3%

HSLhsl(340.4, 64.4%, 42.9%)

HSV / HSBhsv(340.4, 78.3%, 70.6%)

CMYK0%, 78.3%, 52.8%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,806,549

CSS custom property--colour: #B42755;

Brightness & contrast

Relative luminance0.1181WCAG 2.x, 0 is black and 1 is white

Perceived brightness106.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.25:1

Contrast with white6.25:1WCAG normal text: AA

Contrast with black3.36:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#4BD8AA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4C4F56no red cones; affects about 1% of men; ΔE 59.4 from the original

Deuteranopia#716B52no green cones; the most common form, about 1% of men; ΔE 60.4 from the original

Tritanopia#C5003Bno blue cones; rare, and affects men and women equally; ΔE 20.2 from the original

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

Contrast with white, large text6.25:1WCAG large text: AAA

Contrast with black, large text3.36:1WCAG large text: AA

Named colours

Indian red · ΔE 22.5 Brown · ΔE 23.6 Pale violetred · ΔE 24.6 Medium violet red · ΔE 27.5 Crimson · ΔE 28.8 Firebrick · ΔE 29.1

Nearest named CSS colourIndian red (#CD5C5C)ΔE 22.51, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#27B486

Analogous#B4279C, #B43F27

Triadic#55B427, #2755B4

Split complementary#27B43F, #279CB4

Tetradic#9CB427, #27B486, #3F27B4

Tints, shades & saturation

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

Lighter +40%#F0B7CA

Lighter +30%#E68EAB

Lighter +20%#DD648B

Lighter +10%#D43A6C

Darker −10%#8A1E41

Darker −20%#60152D

Darker −30%#360C1A

Darker −40%#0C0306

More saturated +25%#CF0C4B

Less saturated −25%#99425F

Channel breakdown

R180

G39

B85

Red180 (70.6%)

Green39 (15.3%)

Blue85 (33.3%)

Hue340.43°

Saturation (HSL)64.38%

Lightness42.94%

Dominant channelRed

Hex per channelR B4 · G 27 · B 55

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B42755 (chemical formula)

Formula
462,181.55 g/mol
42755 atoms

B42755 has a molar mass of 462,181.55 g/mol, made up of 42755 atoms across 1 element: 42755 × B.

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Molar mass

Molar mass462,181.55 g/mol

Total atoms per molecule42755

Distinct elements1

Mass of one molecule7.6747052 × 10^-19 g

Molecules per gram1.3029816 × 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 × 42755)462,181.55 g/mol, 100%

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Elements in this formula

Boron

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