Recognised as Colour

#FB1775

#FB1775
Red
Dark
Nearest: Deep pink

#FB1775 is a red with RGB values 251, 23, 117 and HSL 335°, 97%, 54%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FB1775#FB1775

HEX#FB1775

RGBrgb(251, 23, 117)

RGB (0–1)0.9843, 0.0902, 0.4588

RGB percentages98.4%, 9%, 45.9%

HSLhsl(335.3, 96.6%, 53.7%)

HSV / HSBhsv(335.3, 90.8%, 98.4%)

CMYK0%, 90.8%, 53.4%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,455,541

CSS custom property--colour: #FB1775;

Brightness & contrast

Relative luminance0.22406WCAG 2.x, 0 is black and 1 is white

Perceived brightness143.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.48:1

Contrast with white3.83:1WCAG normal text: Fail

Contrast with black5.48:1WCAG normal text: AA

Greyscale equivalent#4E4E4E

Inverted#04E88A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#616777no red cones; affects about 1% of men; ΔE 82.8 from the original

Deuteranopia#9A9170no green cones; the most common form, about 1% of men; ΔE 83.8 from the original

Tritanopia#FF0048no blue cones; rare, and affects men and women equally; ΔE 26.2 from the original

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

Contrast with white, large text3.83:1WCAG large text: AA

Contrast with black, large text5.48:1WCAG large text: AAA

Named colours

Deep pink · ΔE 16.1 Crimson · ΔE 26.7 Medium violet red · ΔE 28.8 Hot pink · ΔE 28.8 Pale violetred · ΔE 37.3 Indian red · ΔE 38.2

Nearest named CSS colourDeep pink (#FF1493)ΔE 16.13, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#17FB9D

Analogous#FB17E7, #FB2B17

Triadic#75FB17, #1775FB

Split complementary#17FB2B, #17E7FB

Tetradic#E7FB17, #17FB9D, #2B17FB

Tints, shades & saturation

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

Lighter +40%#FEE0EC

Lighter +30%#FEADCE

Lighter +20%#FD7BB1

Lighter +10%#FC4993

Darker −10%#DB045D

Darker −20%#A90347

Darker −30%#770232

Darker −40%#45011D

More saturated +25%#FF1374

Less saturated −25%#DD357A

Channel breakdown

R251

G23

B117

Red251 (98.4%)

Green23 (9%)

Blue117 (45.9%)

Hue335.26°

Saturation (HSL)96.61%

Lightness53.73%

Dominant channelRed

Hex per channelR FB · G 17 · B 75

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB1775 (chemical formula)

Formula
19,206.748 g/mol
1776 atoms

FB1775 has a molar mass of 19,206.748 g/mol, made up of 1776 atoms across 2 elements: 1 × F, 1775 × B.

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Molar mass

Molar mass19,206.748 g/mol

Total atoms per molecule1776

Distinct elements2

Mass of one molecule3.1893555 × 10^-20 g

Molecules per gram3.1354297 × 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, 0.099%

Boron (B × 1775)19,187.75 g/mol, 99.901%

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