Recognised as Colour

#FE4553

#FE4553
Red
Dark
Nearest: Crimson

#FE4553 is a red with RGB values 254, 69, 83 and HSL 355°, 99%, 63%. It is a dark colour, so black text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FE4553#FE4553

HEX#FE4553

RGBrgb(254, 69, 83)

RGB (0–1)0.9961, 0.2706, 0.3255

RGB percentages99.6%, 27.1%, 32.5%

HSLhsl(355.5, 98.9%, 63.3%)

HSV / HSBhsv(355.5, 72.8%, 99.6%)

CMYK0%, 72.8%, 67.3%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,663,891

CSS custom property--colour: #FE4553;

Brightness & contrast

Relative luminance0.25952WCAG 2.x, 0 is black and 1 is white

Perceived brightness151.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.19:1

Contrast with white3.39:1WCAG normal text: Fail

Contrast with black6.19:1WCAG normal text: AA

Greyscale equivalent#6D6D6D

Inverted#01BAAC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7A7252no red cones; affects about 1% of men; ΔE 74.2 from the original

Deuteranopia#A99A4Dno green cones; the most common form, about 1% of men; ΔE 74.7 from the original

Tritanopia#FF004Cno blue cones; rare, and affects men and women equally; ΔE 12.9 from the original

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

Contrast with white, large text3.39:1WCAG large text: AA

Contrast with black, large text6.19:1WCAG large text: AAA

Named colours

Crimson · ΔE 11.1 Tomato · ΔE 16.9 Firebrick · ΔE 23.4 Salmon · ΔE 26.6 Indian red · ΔE 28.1 Coral · ΔE 28.8

Nearest named CSS colourCrimson (#DC143C)ΔE 11.13, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45FEF0

Analogous#FE45AF, #FE9445

Triadic#53FE45, #4553FE

Split complementary#45FE94, #45AFFE

Tetradic#AFFE45, #45FEF0, #9445FE

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFDDE0

Lighter +20%#FFAAB1

Lighter +10%#FE7882

Darker −10%#FE1224

Darker −20%#DC0112

Darker −30%#A9010E

Darker −40%#76010A

More saturated +25%#FF4452

Less saturated −25%#E75C67

Channel breakdown

R254

G69

B83

Red254 (99.6%)

Green69 (27.1%)

Blue83 (32.5%)

Hue355.46°

Saturation (HSL)98.93%

Lightness63.33%

Dominant channelRed

Hex per channelR FE · G 45 · B 53

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe4553 (chemical formula)

Formula
254,262.285 g/mol
4553 atoms

Fe4553 has a molar mass of 254,262.285 g/mol, made up of 4553 atoms across 1 element: 4553 × Fe.

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Molar mass

Molar mass254,262.285 g/mol

Total atoms per molecule4553

Distinct elements1

Mass of one molecule4.2221246 × 10^-19 g

Molecules per gram2.3684758 × 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

Fe100%

Iron (Fe × 4553)254,262.285 g/mol, 100%

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Elements in this formula

Iron

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