Recognised as Colour

#F64F54

#F64F54
Red
Dark
Nearest: Crimson

#F64F54 is a red with RGB values 246, 79, 84 and HSL 358°, 90%, 64%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F64F54#F64F54

HEX#F64F54

RGBrgb(246, 79, 84)

RGB (0–1)0.9647, 0.3098, 0.3294

RGB percentages96.5%, 31%, 32.9%

HSLhsl(358.2, 90.3%, 63.7%)

HSV / HSBhsv(358.2, 67.9%, 96.5%)

CMYK0%, 67.9%, 65.9%, 3.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,142,164

CSS custom property--colour: #F64F54;

Brightness & contrast

Relative luminance0.25825WCAG 2.x, 0 is black and 1 is white

Perceived brightness150.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.16:1

Contrast with white3.41:1WCAG normal text: Fail

Contrast with black6.16:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#09B0AB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7D7453no red cones; affects about 1% of men; ΔE 67.7 from the original

Deuteranopia#A7984Fno green cones; the most common form, about 1% of men; ΔE 68.4 from the original

Tritanopia#FF1F52no blue cones; rare, and affects men and women equally; ΔE 15.7 from the original

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

Contrast with white, large text3.41:1WCAG large text: AA

Contrast with black, large text6.16:1WCAG large text: AAA

Named colours

Crimson · ΔE 13.1 Tomato · ΔE 14.5 Firebrick · ΔE 20.6 Salmon · ΔE 21.2 Indian red · ΔE 22.6 Coral · ΔE 24.7

Nearest named CSS colourCrimson (#DC143C)ΔE 13.07, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4FF6F1

Analogous#F64FA8, #F69D4F

Triadic#54F64F, #4F54F6

Split complementary#4FF69D, #4FA8F6

Tetradic#A8F64F, #4FF6F1, #9D4FF6

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FDE1E1

Lighter +20%#FBB0B2

Lighter +10%#F88083

Darker −10%#F41E25

Darker −20%#D40B11

Darker −30%#A4080D

Darker −40%#730609

More saturated +25%#FF464C

Less saturated −25%#DF666A

Channel breakdown

R246

G79

B84

Red246 (96.5%)

Green79 (31%)

Blue84 (32.9%)

Hue358.2°

Saturation (HSL)90.27%

Lightness63.73%

Dominant channelRed

Hex per channelR F6 · G 4F · B 54

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F64F54 (chemical formula)

Formula
2,241.764 g/mol
118 atoms

F64F54 has a molar mass of 2,241.764 g/mol, made up of 118 atoms across 1 element: 118 × F.

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Molar mass

Molar mass2,241.764 g/mol

Total atoms per molecule118

Distinct elements1

Mass of one molecule3.7225367 × 10^-21 g

Molecules per gram2.6863402 × 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

F100%

Fluorine (F × 118)2,241.764 g/mol, 100%

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Elements in this formula

Fluorine

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