Recognised as Colour

#FE6566

#FE6566
Red
Dark
Nearest: Salmon

#FE6566 is a red with RGB values 254, 101, 102 and HSL 360°, 99%, 70%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Salmon.

Colour values

#FE6566#FE6566

HEX#FE6566

RGBrgb(254, 101, 102)

RGB (0–1)0.9961, 0.3961, 0.4

RGB percentages99.6%, 39.6%, 40%

HSLhsl(359.6, 98.7%, 69.6%)

HSV / HSBhsv(359.6, 60.2%, 99.6%)

CMYK0%, 60.2%, 59.8%, 0.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,672,102

CSS custom property--colour: #FE6566;

Brightness & contrast

Relative luminance0.31338WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.27:1

Contrast with white2.89:1WCAG normal text: Fail

Contrast with black7.27:1WCAG normal text: AAA

Greyscale equivalent#868686

Inverted#019A99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8C8465no red cones; affects about 1% of men; ΔE 62.2 from the original

Deuteranopia#B2A462no green cones; the most common form, about 1% of men; ΔE 63 from the original

Tritanopia#FF4767no blue cones; rare, and affects men and women equally; ΔE 13.9 from the original

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

Contrast with white, large text2.89:1WCAG large text: Fail

Contrast with black, large text7.27:1WCAG large text: AAA

Named colours

Salmon · ΔE 13.9 Tomato · ΔE 16.3 Indian red · ΔE 18.3 Light coral · ΔE 19.1 Crimson · ΔE 20.5 Coral · ΔE 22.2

Nearest named CSS colourSalmon (#FA8072)ΔE 13.89, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#65FEFD

Analogous#FE65B3, #FEB165

Triadic#66FE65, #6566FE

Split complementary#65FEB1, #65B2FE

Tetradic#B2FE65, #65FEFD, #B165FE

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFDFD

Lighter +20%#FFCACB

Lighter +10%#FE9898

Darker −10%#FE3234

Darker −20%#FB0203

Darker −30%#C90103

Darker −40%#960102

More saturated +25%#FF6465

Less saturated −25%#EB7879

Channel breakdown

R254

G101

B102

Red254 (99.6%)

Green101 (39.6%)

Blue102 (40%)

Hue359.61°

Saturation (HSL)98.71%

Lightness69.61%

Dominant channelRed

Hex per channelR FE · G 65 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Fe6566 (chemical formula)

Formula
366,678.27 g/mol
6566 atoms

Fe6566 has a molar mass of 366,678.27 g/mol, made up of 6566 atoms across 1 element: 6566 × Fe.

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Molar mass

Molar mass366,678.27 g/mol

Total atoms per molecule6566

Distinct elements1

Mass of one molecule6.0888359 × 10^-19 g

Molecules per gram1.6423501 × 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 × 6566)366,678.27 g/mol, 100%

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Elements in this formula

Iron

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