Recognised as Colour

#FB1B8B

#FB1B8B
Red
Dark
Nearest: Deep pink

#FB1B8B is a red with RGB values 251, 27, 139 and HSL 330°, 97%, 55%. It is a dark colour, so black text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FB1B8B#FB1B8B

HEX#FB1B8B

RGBrgb(251, 27, 139)

RGB (0–1)0.9843, 0.1059, 0.5451

RGB percentages98.4%, 10.6%, 54.5%

HSLhsl(330, 96.6%, 54.5%)

HSV / HSBhsv(330, 89.2%, 98.4%)

CMYK0%, 89.2%, 44.6%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,456,587

CSS custom property--colour: #FB1B8B;

Brightness & contrast

Relative luminance0.23157WCAG 2.x, 0 is black and 1 is white

Perceived brightness146.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.63:1

Contrast with white3.73:1WCAG normal text: Fail

Contrast with black5.63:1WCAG normal text: AA

Greyscale equivalent#535353

Inverted#04E474

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5B6A8Dno red cones; affects about 1% of men; ΔE 81.7 from the original

Deuteranopia#969386no green cones; the most common form, about 1% of men; ΔE 84.2 from the original

Tritanopia#FF0055no blue cones; rare, and affects men and women equally; ΔE 30.8 from the original

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

Contrast with white, large text3.73:1WCAG large text: AA

Contrast with black, large text5.63:1WCAG large text: AAA

Named colours

Deep pink · ΔE 4.4 Medium violet red · ΔE 20.1 Hot pink · ΔE 22.3 Pale violetred · ΔE 37.1 Crimson · ΔE 38.3 Orchid · ΔE 42.7

Nearest named CSS colourDeep pink (#FF1493)ΔE 4.38, a close match

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BFB8B

Analogous#FB1BFB, #FB1B1B

Triadic#8BFB1B, #1B8BFB

Split complementary#1BFB1B, #1BFBFB

Tetradic#FBFB1B, #1BFB8B, #1B1BFB

Tints, shades & saturation

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

Lighter +40%#FFE3F1

Lighter +30%#FEB1D7

Lighter +20%#FD7FBE

Lighter +10%#FC4DA4

Darker −10%#DF0472

Darker −20%#AD0358

Darker −30%#7B023F

Darker −40%#490125

More saturated +25%#FF178B

Less saturated −25%#DE388B

Channel breakdown

R251

G27

B139

Red251 (98.4%)

Green27 (10.6%)

Blue139 (54.5%)

Hue330°

Saturation (HSL)96.55%

Lightness54.51%

Dominant channelRed

Hex per channelR FB · G 1B · B 8B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB1B8B (chemical formula)

Formula
127.098 g/mol
11 atoms

FB1B8B has a molar mass of 127.098 g/mol, made up of 11 atoms across 2 elements: 1 × F, 10 × B.

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Molar mass

Molar mass127.098 g/mol

Total atoms per molecule11

Distinct elements2

Mass of one molecule2.1105119 × 10^-22 g

Molecules per gram4.7381869 × 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

F14.9%

B85.1%

Fluorine (F)18.998 g/mol, 14.948%

Boron (B × 10)108.1 g/mol, 85.052%

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Elements in this formula

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