Recognised as Colour

#FB3065

#FB3065
Red
Dark
Nearest: Crimson

#FB3065 is a red with RGB values 251, 48, 101 and HSL 344°, 96%, 59%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FB3065#FB3065

HEX#FB3065

RGBrgb(251, 48, 101)

RGB (0–1)0.9843, 0.1882, 0.3961

RGB percentages98.4%, 18.8%, 39.6%

HSLhsl(344.3, 96.2%, 58.6%)

HSV / HSBhsv(344.3, 80.9%, 98.4%)

CMYK0%, 80.9%, 59.8%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,461,925

CSS custom property--colour: #FB3065;

Brightness & contrast

Relative luminance0.23563WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.71:1

Contrast with white3.68:1WCAG normal text: Fail

Contrast with black5.71:1WCAG normal text: AA

Greyscale equivalent#5F5F5F

Inverted#04CF9A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6C6B66no red cones; affects about 1% of men; ΔE 79 from the original

Deuteranopia#A09460no green cones; the most common form, about 1% of men; ΔE 79.5 from the original

Tritanopia#FF0048no blue cones; rare, and affects men and women equally; ΔE 16.2 from the original

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

Contrast with white, large text3.68:1WCAG large text: AA

Contrast with black, large text5.71:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.8 Deep pink · ΔE 28.4 Firebrick · ΔE 30.5 Indian red · ΔE 30.8 Tomato · ΔE 31.5 Brown · ΔE 32.9

Nearest named CSS colourCrimson (#DC143C)ΔE 15.79, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#30FBC6

Analogous#FB30CB, #FB6030

Triadic#65FB30, #3065FB

Split complementary#30FB60, #30CBFB

Tetradic#CBFB30, #30FBC6, #6030FB

Tints, shades & saturation

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

Lighter +40%#FFF8FA

Lighter +30%#FEC6D5

Lighter +20%#FD94AF

Lighter +10%#FC628A

Darker −10%#F30543

Darker −20%#C10435

Darker −30%#8F0327

Darker −40%#5D021A

More saturated +25%#FF2C63

Less saturated −25%#E14A72

Channel breakdown

R251

G48

B101

Red251 (98.4%)

Green48 (18.8%)

Blue101 (39.6%)

Hue344.33°

Saturation (HSL)96.21%

Lightness58.63%

Dominant channelRed

Hex per channelR FB · G 30 · B 65

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB3065 (chemical formula)

Formula
33,151.648 g/mol
3066 atoms

FB3065 has a molar mass of 33,151.648 g/mol, made up of 3066 atoms across 2 elements: 1 × F, 3065 × B.

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Molar mass

Molar mass33,151.648 g/mol

Total atoms per molecule3066

Distinct elements2

Mass of one molecule5.5049607 × 10^-20 g

Molecules per gram1.8165434 × 10^19

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

F0.1%

B99.9%

Fluorine (F)18.998 g/mol, 0.057%

Boron (B × 3065)33,132.65 g/mol, 99.943%

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Elements in this formula

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