Recognised as Colour

#FB4388

#FB4388
Red
Dark
Nearest: Deep pink

#FB4388 is a red with RGB values 251, 67, 136 and HSL 338°, 96%, 62%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Deep pink.

Colour values

#FB4388#FB4388

HEX#FB4388

RGBrgb(251, 67, 136)

RGB (0–1)0.9843, 0.2627, 0.5333

RGB percentages98.4%, 26.3%, 53.3%

HSLhsl(337.5, 95.8%, 62.4%)

HSV / HSBhsv(337.5, 73.3%, 98.4%)

CMYK0%, 73.3%, 45.8%, 1.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,466,824

CSS custom property--colour: #FB4388;

Brightness & contrast

Relative luminance0.26301WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.26:1

Contrast with white3.35:1WCAG normal text: Fail

Contrast with black6.26:1WCAG normal text: AA

Greyscale equivalent#6F6F6F

Inverted#04BC77

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6E758Ano red cones; affects about 1% of men; ΔE 73.2 from the original

Deuteranopia#9F9984no green cones; the most common form, about 1% of men; ΔE 74.9 from the original

Tritanopia#FF1E60no blue cones; rare, and affects men and women equally; ΔE 20.9 from the original

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

Contrast with white, large text3.35:1WCAG large text: AA

Contrast with black, large text6.26:1WCAG large text: AAA

Named colours

Deep pink · ΔE 15.5 Hot pink · ΔE 18.6 Medium violet red · ΔE 23.7 Pale violetred · ΔE 27.7 Crimson · ΔE 31.6 Indian red · ΔE 33.6

Nearest named CSS colourDeep pink (#FF1493)ΔE 15.48, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#43FBB6

Analogous#FB43E4, #FB5A43

Triadic#88FB43, #4388FB

Split complementary#43FB5A, #43E4FB

Tetradic#E4FB43, #43FBB6, #5A43FB

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#FED9E7

Lighter +20%#FDA7C7

Lighter +10%#FC75A8

Darker −10%#FA1168

Darker −20%#D30552

Darker −30%#A2033F

Darker −40%#70022B

More saturated +25%#FF3F87

Less saturated −25%#E35B8E

Channel breakdown

R251

G67

B136

Red251 (98.4%)

Green67 (26.3%)

Blue136 (53.3%)

Hue337.5°

Saturation (HSL)95.83%

Lightness62.35%

Dominant channelRed

Hex per channelR FB · G 43 · B 88

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FB4388 (chemical formula)

Formula
47,453.278 g/mol
4389 atoms

FB4388 has a molar mass of 47,453.278 g/mol, made up of 4389 atoms across 2 elements: 1 × F, 4388 × B.

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Molar mass

Molar mass47,453.278 g/mol

Total atoms per molecule4389

Distinct elements2

Mass of one molecule7.8798022 × 10^-20 g

Molecules per gram1.2690674 × 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%

B100%

Fluorine (F)18.998 g/mol, 0.04%

Boron (B × 4388)47,434.28 g/mol, 99.96%

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