Recognised as Colour

#F54651

#F54651
Red
Dark
Nearest: Crimson

#F54651 is a red with RGB values 245, 70, 81 and HSL 356°, 90%, 62%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F54651#F54651

HEX#F54651

RGBrgb(245, 70, 81)

RGB (0–1)0.9608, 0.2745, 0.3176

RGB percentages96.1%, 27.5%, 31.8%

HSLhsl(356.2, 89.7%, 61.8%)

HSV / HSBhsv(356.2, 71.4%, 96.1%)

CMYK0%, 71.4%, 66.9%, 3.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,074,321

CSS custom property--colour: #F54651;

Brightness & contrast

Relative luminance0.24387WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.88:1

Contrast with white3.57:1WCAG normal text: Fail

Contrast with black5.88:1WCAG normal text: AA

Greyscale equivalent#6C6C6C

Inverted#0AB9AE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#787050no red cones; affects about 1% of men; ΔE 70.8 from the original

Deuteranopia#A4954Cno green cones; the most common form, about 1% of men; ΔE 71.1 from the original

Tritanopia#FF004Cno blue cones; rare, and affects men and women equally; ΔE 15.4 from the original

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

Contrast with white, large text3.57:1WCAG large text: AA

Contrast with black, large text5.88:1WCAG large text: AAA

Named colours

Crimson · ΔE 10.5 Tomato · ΔE 16.3 Firebrick · ΔE 20.6 Salmon · ΔE 24.2 Indian red · ΔE 24.7 Brown · ΔE 25.5

Nearest named CSS colourCrimson (#DC143C)ΔE 10.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#46F5EA

Analogous#F546A8, #F59346

Triadic#51F546, #4651F5

Split complementary#46F593, #46A8F5

Tetradic#A8F546, #46F5EA, #9346F5

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FDD7DA

Lighter +20%#FAA7AC

Lighter +10%#F8767F

Darker −10%#F21623

Darker −20%#CA0B17

Darker −30%#9A0811

Darker −40%#69060C

More saturated +25%#FF3C48

Less saturated −25%#DD5E66

Channel breakdown

R245

G70

B81

Red245 (96.1%)

Green70 (27.5%)

Blue81 (31.8%)

Hue356.23°

Saturation (HSL)89.74%

Lightness61.76%

Dominant channelRed

Hex per channelR F5 · G 46 · B 51

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F54651 (chemical formula)

Formula
1,038,259.698 g/mol
54651 atoms

F54651 has a molar mass of 1,038,259.698 g/mol, made up of 54651 atoms across 1 element: 54651 × F.

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Molar mass

Molar mass1,038,259.698 g/mol

Total atoms per molecule54651

Distinct elements1

Mass of one molecule1.7240708 × 10^-18 g

Molecules per gram5.8002259 × 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 × 54651)1,038,259.698 g/mol, 100%

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Elements in this formula

Fluorine

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