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Recognised as Colour

#F37281

  • #F37281
  • Red
  • Dark
  • Nearest: Light coral

#F37281 is a red with RGB values 243, 114, 129 and HSL 353°, 84%, 70%. It is a dark colour, so black text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Light coral.

Colour values

#F37281#F37281
HEX#F37281
RGBrgb(243, 114, 129)
RGB (0–1)0.9529, 0.4471, 0.5059
RGB percentages95.3%, 44.7%, 50.6%
HSLhsl(353, 84.3%, 70%)
HSV / HSBhsv(353, 53.1%, 95.3%)
CMYK0%, 53.1%, 46.9%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,954,561
CSS custom property--colour: #F37281;

Brightness & contrast

Relative luminance0.32674WCAG 2.x, 0 is black and 1 is white
Perceived brightness164.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 7.53:1
Contrast with white2.79:1WCAG normal text: Fail
Contrast with black7.53:1WCAG normal text: AAA
Greyscale equivalent#8F8F8F
Inverted#0C8D7E

Colour vision & accessibility

Protanopia#8E8B81no red cones; affects about 1% of men; ΔE 52.9 from the original
Deuteranopia#AEA57Eno green cones; the most common form, about 1% of men; ΔE 54.3 from the original
Tritanopia#FF6178no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.79:1WCAG large text: Fail
Contrast with black, large text7.53:1WCAG large text: AAA

Named colours

Nearest named CSS colourLight coral (#F08080)ΔE 9.08, clearly different but related
Hue familyred
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#72F3E4
Analogous#F372C2, #F3A372
Triadic#81F372, #7281F3
Split complementary#72F3A3, #72C2F3
Tetradic#C2F372, #72F3E4, #A372F3

Tints, shades & saturation

Lighter +40%#FFFFFF
Lighter +30%#FFFFFF
Lighter +20%#FBD0D5
Lighter +10%#F7A1AB
Darker −10%#EF4357
Darker −20%#EB142D
Darker −30%#BC1024
Darker −40%#8D0C1B
More saturated +25%#FF6678
Less saturated −25%#E08590

Channel breakdown

R243
G114
B129
Red243 (95.3%)
Green114 (44.7%)
Blue129 (50.6%)
Hue353.02°
Saturation (HSL)84.31%
Lightness70%
Dominant channelRed
Hex per channelR F3 · G 72 · B 81

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Also reads as

F37281 (chemical formula)

  • Formula
  • 708,264.438 g/mol
  • 37281 atoms

F37281 has a molar mass of 708,264.438 g/mol, made up of 37281 atoms across 1 element: 37281 × F.

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Molar mass

Molar mass708,264.438 g/mol
Total atoms per molecule37281
Distinct elements1
Mass of one molecule1.1761008 × 10^-18 g
Molecules per gram8.5026728 × 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 × 37281)708,264.438 g/mol, 100%

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Every value on this page was computed from “f37281” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.