Recognised as Colour

#F2003F

#F2003F
Red
Dark
Nearest: Crimson

#F2003F is a red with RGB values 242, 0, 63 and HSL 344°, 100%, 47%. It is a dark colour, so black text on it reaches 4.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F2003F#F2003F

HEX#F2003F

RGBrgb(242, 0, 63)

RGB (0–1)0.949, 0, 0.2471

RGB percentages94.9%, 0%, 24.7%

HSLhsl(344.4, 100%, 47.5%)

HSV / HSBhsv(344.4, 100%, 94.9%)

CMYK0%, 100%, 74%, 5.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,859,775

CSS custom property--colour: #F2003F;

Brightness & contrast

Relative luminance0.19236WCAG 2.x, 0 is black and 1 is white

Perceived brightness134 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.85:1

Contrast with white4.33:1WCAG normal text: Fail

Contrast with black4.85:1WCAG normal text: AA

Greyscale equivalent#383838

Inverted#0DFFC0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#635C3Eno red cones; affects about 1% of men; ΔE 83.5 from the original

Deuteranopia#988937no green cones; the most common form, about 1% of men; ΔE 83.3 from the original

Tritanopia#FF0026no blue cones; rare, and affects men and women equally; ΔE 17.2 from the original

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

Contrast with white, large text4.33:1WCAG large text: AA

Contrast with black, large text4.85:1WCAG large text: AAA

Named colours

Crimson · ΔE 9.1 Tomato · ΔE 24.8 Firebrick · ΔE 25.2 Red · ΔE 29.8 Brown · ΔE 32.2 Orange red · ΔE 33.7

Nearest named CSS colourCrimson (#DC143C)ΔE 9.1, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F2B3

Analogous#F200B8, #F23A00

Triadic#3FF200, #003FF2

Split complementary#00F23A, #00B8F2

Tetradic#B8F200, #00F2B3, #3A00F2

Tints, shades & saturation

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

Lighter +40%#FFBFD0

Lighter +30%#FF8CAA

Lighter +20%#FF5984

Lighter +10%#FF265E

Darker −10%#BF0032

Darker −20%#8C0024

Darker −30%#590017

Darker −40%#26000A

More saturated +25%#F2003F

Less saturated −25%#D41E4E

Channel breakdown

R242

B63

Red242 (94.9%)

Green0 (0%)

Blue63 (24.7%)

Hue344.38°

Saturation (HSL)100%

Lightness47.45%

Dominant channelRed

Hex per channelR F2 · G 00 · B 3F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F2003F (chemical formula)

Formula
38,071.992 g/mol
2004 atoms

F2003F has a molar mass of 38,071.992 g/mol, made up of 2004 atoms across 1 element: 2004 × F.

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Molar mass

Molar mass38,071.992 g/mol

Total atoms per molecule2004

Distinct elements1

Mass of one molecule6.322003 × 10^-20 g

Molecules per gram1.5817772 × 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

F100%

Fluorine (F × 2004)38,071.992 g/mol, 100%

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Elements in this formula

Fluorine

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