Recognised as Colour

#FF397C

#FF397C
Red
Dark
Nearest: Deep pink

#FF397C is a red with RGB values 255, 57, 124 and HSL 340°, 100%, 61%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FF397C#FF397C

HEX#FF397C

RGBrgb(255, 57, 124)

RGB (0–1)1, 0.2235, 0.4863

RGB percentages100%, 22.4%, 48.6%

HSLhsl(339.7, 100%, 61.2%)

HSV / HSBhsv(339.7, 77.6%, 100%)

CMYK0%, 77.6%, 51.4%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,726,396

CSS custom property--colour: #FF397C;

Brightness & contrast

Relative luminance0.25641WCAG 2.x, 0 is black and 1 is white

Perceived brightness152 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.13:1

Contrast with white3.43:1WCAG normal text: Fail

Contrast with black6.13:1WCAG normal text: AA

Greyscale equivalent#686868

Inverted#00C683

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D717Dno red cones; affects about 1% of men; ΔE 77.5 from the original

Deuteranopia#A19977no green cones; the most common form, about 1% of men; ΔE 79.2 from the original

Tritanopia#FF0057no blue cones; rare, and affects men and women equally; ΔE 18.5 from the original

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

Contrast with white, large text3.43:1WCAG large text: AA

Contrast with black, large text6.13:1WCAG large text: AAA

Named colours

Deep pink · ΔE 18.4 Hot pink · ΔE 25.3 Crimson · ΔE 25.9 Medium violet red · ΔE 29.1 Pale violetred · ΔE 32.1 Indian red · ΔE 33.4

Nearest named CSS colourDeep pink (#FF1493)ΔE 18.43, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#39FFBC

Analogous#FF39DF, #FF5939

Triadic#7CFF39, #397CFF

Split complementary#39FF59, #39DFFF

Tetradic#DFFF39, #39FFBC, #5939FF

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFD2E1

Lighter +20%#FF9FBF

Lighter +10%#FF6C9E

Darker −10%#FF065A

Darker −20%#D20047

Darker −30%#9F0036

Darker −40%#6C0025

More saturated +25%#FF397C

Less saturated −25%#E65284

Channel breakdown

R255

G57

B124

Red255 (100%)

Green57 (22.4%)

Blue124 (48.6%)

Hue339.7°

Saturation (HSL)100%

Lightness61.18%

Dominant channelRed

Hex per channelR FF · G 39 · B 7C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF397C (chemical formula)

Formula
7,573.215 g/mol
399 atoms

FF397C has a molar mass of 7,573.215 g/mol, made up of 399 atoms across 2 elements: 398 × F, 1 × C.

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Molar mass

Molar mass7,573.215 g/mol

Total atoms per molecule399

Distinct elements2

Mass of one molecule1.2575619 × 10^-20 g

Molecules per gram7.9518946 × 10^19

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

F99.8%

C0.2%

Fluorine (F × 398)7,561.204 g/mol, 99.841%

Carbon (C)12.011 g/mol, 0.159%

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Elements in this formula

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