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Recognised as Colour

#F55371

  • #F55371
  • Red
  • Dark
  • Nearest: Indian red

#F55371 is a red with RGB values 245, 83, 113 and HSL 349°, 89%, 64%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#F55371#F55371
HEX#F55371
RGBrgb(245, 83, 113)
RGB (0–1)0.9608, 0.3255, 0.4431
RGB percentages96.1%, 32.5%, 44.3%
HSLhsl(348.9, 89%, 64.3%)
HSV / HSBhsv(348.9, 66.1%, 96.1%)
CMYK0%, 66.1%, 53.9%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,077,681
CSS custom property--colour: #F55371;

Brightness & contrast

Relative luminance0.26791WCAG 2.x, 0 is black and 1 is white
Perceived brightness153.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.36:1
Contrast with white3.3:1WCAG normal text: Fail
Contrast with black6.36:1WCAG normal text: AA
Greyscale equivalent#787878
Inverted#0AAC8E

Colour vision & accessibility

Protanopia#7A7871no red cones; affects about 1% of men; ΔE 66.3 from the original
Deuteranopia#A49A6Dno green cones; the most common form, about 1% of men; ΔE 67.5 from the original
Tritanopia#FF335Fno blue cones; rare, and affects men and women equally; ΔE 14.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.3:1WCAG large text: AA
Contrast with black, large text6.36:1WCAG large text: AAA

Named colours

Nearest named CSS colourIndian red (#CD5C5C)ΔE 19.97, a distinctly different colour
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#53F5D7
Analogous#F553C2, #F58653
Triadic#71F553, #5371F5
Split complementary#53F586, #53C2F5
Tetradic#C2F553, #53F5D7, #8653F5

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FDE4E8
Lighter +20%#FBB3C1
Lighter +10%#F88399
Darker −10%#F22349
Darker −20%#D60C32
Darker −30%#A50A26
Darker −40%#75071B
More saturated +25%#FF496B
Less saturated −25%#DE6A7F

Channel breakdown

R245
G83
B113
Red245 (96.1%)
Green83 (32.5%)
Blue113 (44.3%)
Hue348.89°
Saturation (HSL)89.01%
Lightness64.31%
Dominant channelRed
Hex per channelR F5 · G 53 · B 71

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Also reads as

F55371 (chemical formula)

  • Formula
  • 1,051,938.258 g/mol
  • 55371 atoms

F55371 has a molar mass of 1,051,938.258 g/mol, made up of 55371 atoms across 1 element: 55371 × F.

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Molar mass

Molar mass1,051,938.258 g/mol
Total atoms per molecule55371
Distinct elements1
Mass of one molecule1.7467846 × 10^-18 g
Molecules per gram5.7248044 × 10^17

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 × 55371)1,051,938.258 g/mol, 100%

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Every value on this page was computed from “f55371” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.