Recognised as Colour

#F5000F

#F5000F
Red
Dark
Nearest: Red

#F5000F is a red with RGB values 245, 0, 15 and HSL 356°, 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

#F5000F#F5000F

HEX#F5000F

RGBrgb(245, 0, 15)

RGB (0–1)0.9608, 0, 0.0588

RGB percentages96.1%, 0%, 5.9%

HSLhsl(356.3, 100%, 48%)

HSV / HSBhsv(356.3, 100%, 96.1%)

CMYK0%, 100%, 93.9%, 3.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,056,335

CSS custom property--colour: #F5000F;

Brightness & contrast

Relative luminance0.19447WCAG 2.x, 0 is black and 1 is white

Perceived brightness134.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.89:1

Contrast with white4.3:1WCAG normal text: Fail

Contrast with black4.89:1WCAG normal text: AA

Greyscale equivalent#353535

Inverted#0AFFF0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#685B05no red cones; affects about 1% of men; ΔE 84 from the original

Deuteranopia#9C8A00no green cones; the most common form, about 1% of men; ΔE 83.4 from the original

Tritanopia#FF0011no blue cones; rare, and affects men and women equally; ΔE 3.6 from the original

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

Contrast with white, large text4.3:1WCAG large text: AA

Contrast with black, large text4.89:1WCAG large text: AAA

Named colours

Red · ΔE 6.7 Orange red · ΔE 14.2 Tomato · ΔE 27.2 Crimson · ΔE 28.8 Firebrick · ΔE 34.4 Coral · ΔE 38.7

Nearest named CSS colourRed (#FF0000)ΔE 6.69, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F5E6

Analogous#F5008A, #F56B00

Triadic#0FF500, #000FF5

Split complementary#00F56B, #008AF5

Tetradic#8AF500, #00F5E6, #6B00F5

Tints, shades & saturation

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

Lighter +40%#FFC2C6

Lighter +30%#FF8F96

Lighter +20%#FF5C66

Lighter +10%#FF2936

Darker −10%#C2000C

Darker −20%#8F0009

Darker −30%#5C0006

Darker −40%#290003

More saturated +25%#F5000F

Less saturated −25%#D61F2A

Channel breakdown

R245

B15

Red245 (96.1%)

Green0 (0%)

Blue15 (5.9%)

Hue356.33°

Saturation (HSL)100%

Lightness48.04%

Dominant channelRed

Hex per channelR F5 · G 00 · B 0F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F5000F (chemical formula)

Formula
95,008.998 g/mol
5001 atoms

F5000F has a molar mass of 95,008.998 g/mol, made up of 5001 atoms across 1 element: 5001 × F.

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Molar mass

Molar mass95,008.998 g/mol

Total atoms per molecule5001

Distinct elements1

Mass of one molecule1.5776615 × 10^-19 g

Molecules per gram6.3384952 × 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 × 5001)95,008.998 g/mol, 100%

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Elements in this formula

Fluorine

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