Recognised as Colour

#FB3466

#FB3466
Red
Dark
Nearest: Crimson

#FB3466 is a red with RGB values 251, 52, 102 and HSL 345°, 96%, 59%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#FB3466#FB3466

HEX#FB3466

RGBrgb(251, 52, 102)

RGB (0–1)0.9843, 0.2039, 0.4

RGB percentages98.4%, 20.4%, 40%

HSLhsl(344.9, 96.1%, 59.4%)

HSV / HSBhsv(344.9, 79.3%, 98.4%)

CMYK0%, 79.3%, 59.4%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,462,950

CSS custom property--colour: #FB3466;

Brightness & contrast

Relative luminance0.23925WCAG 2.x, 0 is black and 1 is white

Perceived brightness147 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.78:1

Contrast with white3.63:1WCAG normal text: Fail

Contrast with black5.78:1WCAG normal text: AA

Greyscale equivalent#626262

Inverted#04CB99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E6C67no red cones; affects about 1% of men; ΔE 77.7 from the original

Deuteranopia#A09561no green cones; the most common form, about 1% of men; ΔE 79 from the original

Tritanopia#FF004Ano blue cones; rare, and affects men and women equally; ΔE 15.7 from the original

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

Contrast with white, large text3.63:1WCAG large text: AA

Contrast with black, large text5.78:1WCAG large text: AAA

Named colours

Crimson · ΔE 15.8 Deep pink · ΔE 28.6 Indian red · ΔE 29.9 Firebrick · ΔE 30.2 Tomato · ΔE 31 Brown · ΔE 32.5

Nearest named CSS colourCrimson (#DC143C)ΔE 15.83, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#34FBC9

Analogous#FB34CA, #FB6634

Triadic#66FB34, #3466FB

Split complementary#34FB66, #34CAFB

Tetradic#C9FB34, #34FBC9, #6634FB

Tints, shades & saturation

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

Lighter +40%#FFFCFD

Lighter +30%#FECAD7

Lighter +20%#FD98B1

Lighter +10%#FC668C

Darker −10%#F70542

Darker −20%#C50434

Darker −30%#930327

Darker −40%#61021A

More saturated +25%#FF3064

Less saturated −25%#E14E73

Channel breakdown

R251

G52

B102

Red251 (98.4%)

Green52 (20.4%)

Blue102 (40%)

Hue344.92°

Saturation (HSL)96.14%

Lightness59.41%

Dominant channelRed

Hex per channelR FB · G 34 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB3466 (chemical formula)

Formula
37,486.458 g/mol
3467 atoms

FB3466 has a molar mass of 37,486.458 g/mol, made up of 3467 atoms across 2 elements: 1 × F, 3466 × B.

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Molar mass

Molar mass37,486.458 g/mol

Total atoms per molecule3467

Distinct elements2

Mass of one molecule6.2247728 × 10^-20 g

Molecules per gram1.6064843 × 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, 0.051%

Boron (B × 3466)37,467.46 g/mol, 99.949%

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Elements in this formula

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