Recognised as Colour

#FF4187

#FF4187
Red
Dark
Nearest: Deep pink

#FF4187 is a red with RGB values 255, 65, 135 and HSL 338°, 100%, 63%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FF4187#FF4187

HEX#FF4187

RGBrgb(255, 65, 135)

RGB (0–1)1, 0.2549, 0.5294

RGB percentages100%, 25.5%, 52.9%

HSLhsl(337.9, 100%, 62.7%)

HSV / HSBhsv(337.9, 74.5%, 100%)

CMYK0%, 74.5%, 47.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,728,455

CSS custom property--colour: #FF4187;

Brightness & contrast

Relative luminance0.2679WCAG 2.x, 0 is black and 1 is white

Perceived brightness154.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.36:1

Contrast with white3.3:1WCAG normal text: Fail

Contrast with black6.36:1WCAG normal text: AA

Greyscale equivalent#6E6E6E

Inverted#00BE78

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F7689no red cones; affects about 1% of men; ΔE 75.3 from the original

Deuteranopia#A19B83no green cones; the most common form, about 1% of men; ΔE 77 from the original

Tritanopia#FF135Fno blue cones; rare, and affects men and women equally; ΔE 19.7 from the original

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

Contrast with white, large text3.3:1WCAG large text: AA

Contrast with black, large text6.36:1WCAG large text: AAA

Named colours

Deep pink · ΔE 15.3 Hot pink · ΔE 20.3 Medium violet red · ΔE 25.2 Pale violetred · ΔE 29.4 Crimson · ΔE 30.6 Indian red · ΔE 34.4

Nearest named CSS colourDeep pink (#FF1493)ΔE 15.35, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#41FFB9

Analogous#FF41E6, #FF5A41

Triadic#87FF41, #4187FF

Split complementary#41FF5A, #41E6FF

Tetradic#E6FF41, #41FFB9, #5A41FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFDAE8

Lighter +20%#FFA7C7

Lighter +10%#FF74A7

Darker −10%#FF0E67

Darker −20%#DA0050

Darker −30%#A7003E

Darker −40%#74002B

More saturated +25%#FF4187

Less saturated −25%#E7598D

Channel breakdown

R255

G65

B135

Red255 (100%)

Green65 (25.5%)

Blue135 (52.9%)

Hue337.89°

Saturation (HSL)100%

Lightness62.75%

Dominant channelRed

Hex per channelR FF · G 41 · B 87

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF4187 (chemical formula)

Formula
79,563.624 g/mol
4188 atoms

FF4187 has a molar mass of 79,563.624 g/mol, made up of 4188 atoms across 1 element: 4188 × F.

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Molar mass

Molar mass79,563.624 g/mol

Total atoms per molecule4188

Distinct elements1

Mass of one molecule1.3211851 × 10^-19 g

Molecules per gram7.5689624 × 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

F100%

Fluorine (F × 4188)79,563.624 g/mol, 100%

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Elements in this formula

Fluorine

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