Recognised as Colour

#F50020

#F50020
Red
Dark
Nearest: Red

#F50020 is a red with RGB values 245, 0, 32 and HSL 352°, 100%, 48%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#F50020#F50020

HEX#F50020

RGBrgb(245, 0, 32)

RGB (0–1)0.9608, 0, 0.1255

RGB percentages96.1%, 0%, 12.5%

HSLhsl(352.2, 100%, 48%)

HSV / HSBhsv(352.2, 100%, 96.1%)

CMYK0%, 100%, 86.9%, 3.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,056,352

CSS custom property--colour: #F50020;

Brightness & contrast

Relative luminance0.19517WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.9:1

Contrast with white4.28:1WCAG normal text: Fail

Contrast with black4.9:1WCAG normal text: AA

Greyscale equivalent#363636

Inverted#0AFFDF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#675C1Cno red cones; affects about 1% of men; ΔE 84.6 from the original

Deuteranopia#9C8B0Bno green cones; the most common form, about 1% of men; ΔE 84.2 from the original

Tritanopia#FF0017no blue cones; rare, and affects men and women equally; ΔE 6.8 from the original

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

Contrast with white, large text4.28:1WCAG large text: AA

Contrast with black, large text4.9:1WCAG large text: AAA

Named colours

Red · ΔE 12.8 Orange red · ΔE 18.6 Crimson · ΔE 22.7 Tomato · ΔE 24.4 Firebrick · ΔE 30.5 Coral · ΔE 37.1

Nearest named CSS colourRed (#FF0000)ΔE 12.82, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F5D5

Analogous#F5009B, #F55B00

Triadic#20F500, #0020F5

Split complementary#00F55B, #009BF5

Tetradic#9AF500, #00F5D5, #5A00F5

Tints, shades & saturation

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

Lighter +40%#FFC2CA

Lighter +30%#FF8F9E

Lighter +20%#FF5C71

Lighter +10%#FF2945

Darker −10%#C20019

Darker −20%#8F0013

Darker −30%#5C000C

Darker −40%#290005

More saturated +25%#F50020

Less saturated −25%#D61F37

Channel breakdown

R245

B32

Red245 (96.1%)

Green0 (0%)

Blue32 (12.5%)

Hue352.16°

Saturation (HSL)100%

Lightness48.04%

Dominant channelRed

Hex per channelR F5 · G 00 · B 20

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F50020 (chemical formula)

Formula
950,279.96 g/mol
50020 atoms

F50020 has a molar mass of 950,279.96 g/mol, made up of 50020 atoms across 1 element: 50020 × F.

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Molar mass

Molar mass950,279.96 g/mol

Total atoms per molecule50020

Distinct elements1

Mass of one molecule1.577977 × 10^-18 g

Molecules per gram6.337228 × 10^17

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 × 50020)950,279.96 g/mol, 100%

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Elements in this formula

Fluorine

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