Recognised as Colour

#F9FBFF

#F9FBFF
Blue
Light
Nearest: Ghost white

#F9FBFF is a blue with RGB values 249, 251, 255 and HSL 220°, 100%, 99%. It is a light colour, so black text on it reaches 20.3:1 contrast (AAA for normal text). The nearest named colour is Ghost white.

Colour values

#F9FBFF#F9FBFF

HEX#F9FBFF

RGBrgb(249, 251, 255)

RGB (0–1)0.9765, 0.9843, 1

RGB percentages97.6%, 98.4%, 100%

HSLhsl(220, 100%, 98.8%)

HSV / HSBhsv(220, 2.4%, 100%)

CMYK2.4%, 1.6%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,382,975

CSS custom property--colour: #F9FBFF;

Brightness & contrast

Relative luminance0.96354WCAG 2.x, 0 is black and 1 is white

Perceived brightness250.9 of 255ITU-R BT.601 weighting

Light or darkLight

Best text colour on this backgroundBlackcontrast 20.27:1

Contrast with white1.04:1WCAG normal text: Fail

Contrast with black20.27:1WCAG normal text: AAA

Greyscale equivalent#FBFBFB

Inverted#060400

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#FAFBFFno red cones; affects about 1% of men; ΔE 0.4 from the original

Deuteranopia#F9FBFFno green cones; the most common form, about 1% of men; ΔE 0 from the original

Tritanopia#F8FCFCno blue cones; rare, and affects men and women equally; ΔE 2.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text1.04:1WCAG large text: Fail

Contrast with black, large text20.27:1WCAG large text: AAA

Named colours

Ghost white · ΔE 1.9 White · ΔE 2.6 Alice blue · ΔE 2.9 White smoke · ΔE 3 Snow · ΔE 3.2 Azure · ΔE 5

Nearest named CSS colourGhost white (#F8F8FF)ΔE 1.88, below the just-noticeable difference

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFFDF9

Analogous#F9FEFF, #FAF9FF

Triadic#FFF9FB, #FBFFF9

Split complementary#FFFAF9, #FEFFF9

Tetradic#FFF9FE, #FFFDF9, #F9FFFA

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FFFFFF

Lighter +20%#FFFFFF

Lighter +10%#FFFFFF

Darker −10%#C6D9FF

Darker −20%#93B7FF

Darker −30%#6095FF

Darker −40%#2D73FF

More saturated +25%#F9FBFF

Less saturated −25%#FAFBFE

Channel breakdown

R249

G251

B255

Red249 (97.6%)

Green251 (98.4%)

Blue255 (100%)

Hue220°

Saturation (HSL)100%

Lightness98.82%

Dominant channelBlue

Hex per channelR F9 · G FB · B FF

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F9FBFF (chemical formula)

Formula
238.786 g/mol
13 atoms

F9FBFF has a molar mass of 238.786 g/mol, made up of 13 atoms across 2 elements: 12 × F, 1 × B.

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Molar mass

Molar mass238.786 g/mol

Total atoms per molecule13

Distinct elements2

Mass of one molecule3.9651348 × 10^-22 g

Molecules per gram2.5219823 × 10^21

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

F95.5%

B4.5%

Fluorine (F × 12)227.976 g/mol, 95.473%

Boron (B)10.81 g/mol, 4.527%

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Elements in this formula

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