Recognised as Colour

#F30161

#F30161
Red
Dark
Nearest: Crimson

#F30161 is a red with RGB values 243, 1, 97 and HSL 336°, 99%, 48%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#F30161#F30161

HEX#F30161

RGBrgb(243, 1, 97)

RGB (0–1)0.9529, 0.0039, 0.3804

RGB percentages95.3%, 0.4%, 38%

HSLhsl(336.2, 99.2%, 47.8%)

HSV / HSBhsv(336.2, 99.6%, 95.3%)

CMYK0%, 99.6%, 60.1%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,925,601

CSS custom property--colour: #F30161;

Brightness & contrast

Relative luminance0.19939WCAG 2.x, 0 is black and 1 is white

Perceived brightness136.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.99:1

Contrast with white4.21:1WCAG normal text: Fail

Contrast with black4.99:1WCAG normal text: AA

Greyscale equivalent#3B3B3B

Inverted#0CFE9E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5F62no red cones; affects about 1% of men; ΔE 82.9 from the original

Deuteranopia#958B5Bno green cones; the most common form, about 1% of men; ΔE 84.2 from the original

Tritanopia#FF0039no blue cones; rare, and affects men and women equally; ΔE 26.5 from the original

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

Contrast with white, large text4.21:1WCAG large text: AA

Contrast with black, large text4.99:1WCAG large text: AAA

Named colours

Crimson · ΔE 18.5 Deep pink · ΔE 24.6 Firebrick · ΔE 33.4 Medium violet red · ΔE 35.2 Indian red · ΔE 35.3 Hot pink · ΔE 35.5

Nearest named CSS colourCrimson (#DC143C)ΔE 18.47, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#01F393

Analogous#F301DA, #F31A01

Triadic#61F301, #0161F3

Split complementary#01F31A, #01DAF3

Tetradic#DAF301, #01F393, #1A01F3

Tints, shades & saturation

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

Lighter +40%#FFC1DA

Lighter +30%#FF8EBB

Lighter +20%#FE5C9C

Lighter +10%#FE297D

Darker −10%#C0014D

Darker −20%#8D0138

Darker −30%#5B0024

Darker −40%#280010

More saturated +25%#F40061

Less saturated −25%#D42067

Channel breakdown

R243

B97

Red243 (95.3%)

Green1 (0.4%)

Blue97 (38%)

Hue336.2°

Saturation (HSL)99.18%

Lightness47.84%

Dominant channelRed

Hex per channelR F3 · G 01 · B 61

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F30161 (chemical formula)

Formula
572,998.678 g/mol
30161 atoms

F30161 has a molar mass of 572,998.678 g/mol, made up of 30161 atoms across 1 element: 30161 × F.

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Molar mass

Molar mass572,998.678 g/mol

Total atoms per molecule30161

Distinct elements1

Mass of one molecule9.5148669 × 10^-19 g

Molecules per gram1.0509869 × 10^18

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

F100%

Fluorine (F × 30161)572,998.678 g/mol, 100%

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Elements in this formula

Fluorine

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