Recognised as Colour

#FB7579

#FB7579
Red
Dark
Nearest: Salmon

#FB7579 is a red with RGB values 251, 117, 121 and HSL 358°, 94%, 72%. It is a dark colour, so black text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Salmon.

Colour values

#FB7579#FB7579

HEX#FB7579

RGBrgb(251, 117, 121)

RGB (0–1)0.9843, 0.4588, 0.4745

RGB percentages98.4%, 45.9%, 47.5%

HSLhsl(358.2, 94.4%, 72.2%)

HSV / HSBhsv(358.2, 53.4%, 98.4%)

CMYK0%, 53.4%, 51.8%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,479,609

CSS custom property--colour: #FB7579;

Brightness & contrast

Relative luminance0.34612WCAG 2.x, 0 is black and 1 is white

Perceived brightness168.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.92:1

Contrast with white2.65:1WCAG normal text: Fail

Contrast with black7.92:1WCAG normal text: AAA

Greyscale equivalent#929292

Inverted#048A86

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#948E78no red cones; affects about 1% of men; ΔE 54.5 from the original

Deuteranopia#B5A976no green cones; the most common form, about 1% of men; ΔE 55.2 from the original

Tritanopia#FF6077no blue cones; rare, and affects men and women equally; ΔE 11.3 from the original

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

Contrast with white, large text2.65:1WCAG large text: Fail

Contrast with black, large text7.92:1WCAG large text: AAA

Named colours

Salmon · ΔE 9.1 Light coral · ΔE 9.3 Indian red · ΔE 13.8 Pale violetred · ΔE 23.7 Dark salmon · ΔE 24.2 Tomato · ΔE 24.7

Nearest named CSS colourSalmon (#FA8072)ΔE 9.05, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#75FBF7

Analogous#FB75BC, #FBB475

Triadic#79FB75, #7579FB

Split complementary#75FBB4, #75BCFB

Tetradic#BCFB75, #75FBF7, #B475FB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FED8D9

Lighter +10%#FCA7A9

Darker −10%#FA4349

Darker −20%#F81219

Darker −30%#D1060C

Darker −40%#9F0509

More saturated +25%#FF7175

Less saturated −25%#E9878A

Channel breakdown

R251

G117

B121

Red251 (98.4%)

Green117 (45.9%)

Blue121 (47.5%)

Hue358.21°

Saturation (HSL)94.37%

Lightness72.16%

Dominant channelRed

Hex per channelR FB · G 75 · B 79

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB7579 (chemical formula)

Formula
81,947.988 g/mol
7580 atoms

FB7579 has a molar mass of 81,947.988 g/mol, made up of 7580 atoms across 2 elements: 1 × F, 7579 × B.

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Molar mass

Molar mass81,947.988 g/mol

Total atoms per molecule7580

Distinct elements2

Mass of one molecule1.3607784 × 10^-19 g

Molecules per gram7.3487353 × 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

F0%

B100%

Fluorine (F)18.998 g/mol, 0.023%

Boron (B × 7579)81,928.99 g/mol, 99.977%

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Elements in this formula

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