Recognised as Colour

#FF1B75

#FF1B75
Red
Dark
Nearest: Deep pink

#FF1B75 is a red with RGB values 255, 27, 117 and HSL 336°, 100%, 55%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FF1B75#FF1B75

HEX#FF1B75

RGBrgb(255, 27, 117)

RGB (0–1)1, 0.1059, 0.4588

RGB percentages100%, 10.6%, 45.9%

HSLhsl(336.3, 100%, 55.3%)

HSV / HSBhsv(336.3, 89.4%, 100%)

CMYK0%, 89.4%, 54.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,718,709

CSS custom property--colour: #FF1B75;

Brightness & contrast

Relative luminance0.23328WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.67:1

Contrast with white3.71:1WCAG normal text: Fail

Contrast with black5.67:1WCAG normal text: AA

Greyscale equivalent#525252

Inverted#00E48A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#646976no red cones; affects about 1% of men; ΔE 83.4 from the original

Deuteranopia#9D9470no green cones; the most common form, about 1% of men; ΔE 84.6 from the original

Tritanopia#FF0049no blue cones; rare, and affects men and women equally; ΔE 24.2 from the original

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

Contrast with white, large text3.71:1WCAG large text: AA

Contrast with black, large text5.67:1WCAG large text: AAA

Named colours

Deep pink · ΔE 17.4 Crimson · ΔE 25.9 Hot pink · ΔE 29.7 Medium violet red · ΔE 30.5 Pale violetred · ΔE 37.9 Indian red · ΔE 38.2

Nearest named CSS colourDeep pink (#FF1493)ΔE 17.42, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BFFA5

Analogous#FF1BE7, #FF331B

Triadic#75FF1B, #1B75FF

Split complementary#1BFF33, #1BE7FF

Tetradic#E7FF1B, #1BFFA5, #331BFF

Tints, shades & saturation

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

Lighter +40%#FFE7F0

Lighter +30%#FFB4D2

Lighter +20%#FF81B3

Lighter +10%#FF4E94

Darker −10%#E7005B

Darker −20%#B40047

Darker −30%#810033

Darker −40%#4E001F

More saturated +25%#FF1B75

Less saturated −25%#E3377B

Channel breakdown

R255

G27

B117

Red255 (100%)

Green27 (10.6%)

Blue117 (45.9%)

Hue336.32°

Saturation (HSL)100%

Lightness55.29%

Dominant channelRed

Hex per channelR FF · G 1B · B 75

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF1B75 (chemical formula)

Formula
848.746 g/mol
77 atoms

FF1B75 has a molar mass of 848.746 g/mol, made up of 77 atoms across 2 elements: 2 × F, 75 × B.

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Molar mass

Molar mass848.746 g/mol

Total atoms per molecule77

Distinct elements2

Mass of one molecule1.4093759 × 10^-21 g

Molecules per gram7.0953392 × 10^20

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

F4.5%

B95.5%

Fluorine (F × 2)37.996 g/mol, 4.477%

Boron (B × 75)810.75 g/mol, 95.523%

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Elements in this formula

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