Recognised as Colour

#FF3170

#FF3170
Red
Dark
Nearest: Crimson

#FF3170 is a red with RGB values 255, 49, 112 and HSL 342°, 100%, 60%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FF3170#FF3170

HEX#FF3170

RGBrgb(255, 49, 112)

RGB (0–1)1, 0.1922, 0.4392

RGB percentages100%, 19.2%, 43.9%

HSLhsl(341.7, 100%, 59.6%)

HSV / HSBhsv(341.7, 80.8%, 100%)

CMYK0%, 80.8%, 56.1%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,724,336

CSS custom property--colour: #FF3170;

Brightness & contrast

Relative luminance0.24626WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.93:1

Contrast with white3.54:1WCAG normal text: Fail

Contrast with black5.93:1WCAG normal text: AA

Greyscale equivalent#616161

Inverted#00CE8F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C6E71no red cones; affects about 1% of men; ΔE 80 from the original

Deuteranopia#A1976Bno green cones; the most common form, about 1% of men; ΔE 80.9 from the original

Tritanopia#FF004Eno blue cones; rare, and affects men and women equally; ΔE 17.4 from the original

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

Contrast with white, large text3.54:1WCAG large text: AA

Contrast with black, large text5.93:1WCAG large text: AAA

Named colours

Crimson · ΔE 20.8 Deep pink · ΔE 23.2 Hot pink · ΔE 31 Indian red · ΔE 32.9 Medium violet red · ΔE 34.1 Firebrick · ΔE 34.9

Nearest named CSS colourCrimson (#DC143C)ΔE 20.81, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#31FFC0

Analogous#FF31D7, #FF5931

Triadic#70FF31, #3170FF

Split complementary#31FF59, #31D7FF

Tetradic#D7FF31, #31FFC0, #5931FF

Tints, shades & saturation

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

Lighter +40%#FFFDFE

Lighter +30%#FFCADA

Lighter +20%#FF97B7

Lighter +10%#FF6493

Darker −10%#FD004D

Darker −20%#CA003E

Darker −30%#97002E

Darker −40%#64001F

More saturated +25%#FF3170

Less saturated −25%#E54B7A

Channel breakdown

R255

G49

B112

Red255 (100%)

Green49 (19.2%)

Blue112 (43.9%)

Hue341.65°

Saturation (HSL)100%

Lightness59.61%

Dominant channelRed

Hex per channelR FF · G 31 · B 70

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF3170 (chemical formula)

Formula
60,242.658 g/mol
3171 atoms

FF3170 has a molar mass of 60,242.658 g/mol, made up of 3171 atoms across 1 element: 3171 × F.

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Molar mass

Molar mass60,242.658 g/mol

Total atoms per molecule3171

Distinct elements1

Mass of one molecule1.0003529 × 10^-19 g

Molecules per gram9.9964725 × 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 × 3171)60,242.658 g/mol, 100%

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Elements in this formula

Fluorine

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