Recognised as Colour

#F41B58

#F41B58
Red
Dark
Nearest: Crimson

#F41B58 is a red with RGB values 244, 27, 88 and HSL 343°, 91%, 53%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F41B58#F41B58

HEX#F41B58

RGBrgb(244, 27, 88)

RGB (0–1)0.9569, 0.1059, 0.3451

RGB percentages95.7%, 10.6%, 34.5%

HSLhsl(343.1, 90.8%, 53.1%)

HSV / HSBhsv(343.1, 88.9%, 95.7%)

CMYK0%, 88.9%, 63.9%, 4.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,997,784

CSS custom property--colour: #F41B58;

Brightness & contrast

Relative luminance0.20722WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.14:1

Contrast with white4.08:1WCAG normal text: Fail

Contrast with black5.14:1WCAG normal text: AA

Greyscale equivalent#4E4E4E

Inverted#0BE4A7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#656258no red cones; affects about 1% of men; ΔE 80.8 from the original

Deuteranopia#998D52no green cones; the most common form, about 1% of men; ΔE 81.8 from the original

Tritanopia#FF0039no blue cones; rare, and affects men and women equally; ΔE 20.2 from the original

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

Contrast with white, large text4.08:1WCAG large text: AA

Contrast with black, large text5.14:1WCAG large text: AAA

Named colours

Crimson · ΔE 12.1 Firebrick · ΔE 28.2 Tomato · ΔE 30.5 Deep pink · ΔE 31.5 Brown · ΔE 31.8 Indian red · ΔE 32.4

Nearest named CSS colourCrimson (#DC143C)ΔE 12.15, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BF4B7

Analogous#F41BC5, #F44B1B

Triadic#58F41B, #1B58F4

Split complementary#1BF44B, #1BC4F4

Tetradic#C4F41B, #1BF4B7, #4A1BF4

Tints, shades & saturation

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

Lighter +40%#FDDEE7

Lighter +30%#FBADC3

Lighter +20%#F97C9F

Lighter +10%#F64C7C

Darker −10%#D20A42

Darker −20%#A10833

Darker −30%#710524

Darker −40%#400314

More saturated +25%#FF1053

Less saturated −25%#D63965

Channel breakdown

R244

G27

B88

Red244 (95.7%)

Green27 (10.6%)

Blue88 (34.5%)

Hue343.13°

Saturation (HSL)90.79%

Lightness53.14%

Dominant channelRed

Hex per channelR F4 · G 1B · B 58

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F41B58 (chemical formula)

Formula
1,405.898 g/mol
99 atoms

F41B58 has a molar mass of 1,405.898 g/mol, made up of 99 atoms across 2 elements: 41 × F, 58 × B.

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Molar mass

Molar mass1,405.898 g/mol

Total atoms per molecule99

Distinct elements2

Mass of one molecule2.3345486 × 10^-21 g

Molecules per gram4.2834834 × 10^20

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

F55.4%

B44.6%

Fluorine (F × 41)778.918 g/mol, 55.404%

Boron (B × 58)626.98 g/mol, 44.596%

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