Colour

#F40200

#F40200
Red
Dark
Nearest: Red

#F40200 is a red with RGB values 244, 2, 0 and HSL 0°, 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

#F40200#F40200

HEX#F40200

RGBrgb(244, 2, 0)

RGB (0–1)0.9569, 0.0078, 0

RGB percentages95.7%, 0.8%, 0%

HSLhsl(0.5, 100%, 47.8%)

HSV / HSBhsv(0.5, 100%, 95.7%)

CMYK0%, 99.2%, 100%, 4.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,991,296

CSS custom property--colour: #F40200;

Brightness & contrast

Relative luminance0.19277WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.86:1

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

Contrast with black4.86:1WCAG normal text: AA

Greyscale equivalent#353535

Inverted#0BFDFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#685B00no red cones; affects about 1% of men; ΔE 84.1 from the original

Deuteranopia#9C8A00no green cones; the most common form, about 1% of men; ΔE 83 from the original

Tritanopia#FF000Fno blue cones; rare, and affects men and women equally; ΔE 4 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 text4.86:1WCAG large text: AAA

Named colours

Red · ΔE 4.2 Orange red · ΔE 12.2 Tomato · ΔE 29.2 Crimson · ΔE 32.3 Firebrick · ΔE 36.7 Coral · ΔE 39.9

Nearest named CSS colourRed (#FF0000)ΔE 4.18, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00F2F4

Analogous#F40078, #F47C00

Triadic#00F402, #0200F4

Split complementary#00F47C, #0078F4

Tetradic#78F400, #00F2F4, #7C00F4

Tints, shades & saturation

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

Lighter +40%#FFC2C1

Lighter +30%#FF8F8E

Lighter +20%#FF5C5B

Lighter +10%#FF2A28

Darker −10%#C10200

Darker −20%#8E0100

Darker −30%#5B0100

Darker −40%#280000

More saturated +25%#F40200

Less saturated −25%#D6201F

Channel breakdown

R244

Red244 (95.7%)

Green2 (0.8%)

Blue0 (0%)

Hue0.49°

Saturation (HSL)100%

Lightness47.84%

Dominant channelRed

Hex per channelR F4 · G 02 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F40200 (chemical formula)

Formula
763,719.6 g/mol
40200 atoms

F40200 has a molar mass of 763,719.6 g/mol, made up of 40200 atoms across 1 element: 40200 × F.

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Molar mass

Molar mass763,719.6 g/mol

Total atoms per molecule40200

Distinct elements1

Mass of one molecule1.2681862 × 10^-18 g

Molecules per gram7.8852772 × 10^17

Composition by mass

F100%

Fluorine (F × 40200)763,719.6 g/mol, 100%

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Elements in this formula

Fluorine

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