Recognised as Colour

#F15436

#F15436
Red
Dark
Nearest: Tomato

#F15436 is a red with RGB values 241, 84, 54 and HSL 10°, 87%, 58%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Tomato.

Colour values

#F15436#F15436

HEX#F15436

RGBrgb(241, 84, 54)

RGB (0–1)0.9451, 0.3294, 0.2118

RGB percentages94.5%, 32.9%, 21.2%

HSLhsl(9.6, 87%, 57.8%)

HSV / HSBhsv(9.6, 77.6%, 94.5%)

CMYK0%, 65.1%, 77.6%, 5.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,815,734

CSS custom property--colour: #F15436;

Brightness & contrast

Relative luminance0.25308WCAG 2.x, 0 is black and 1 is white

Perceived brightness147.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.06:1

Contrast with white3.46:1WCAG normal text: Fail

Contrast with black6.06:1WCAG normal text: AA

Greyscale equivalent#737373

Inverted#0EABC9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#817431no red cones; affects about 1% of men; ΔE 64.2 from the original

Deuteranopia#A89730no green cones; the most common form, about 1% of men; ΔE 64.6 from the original

Tritanopia#FF264Eno blue cones; rare, and affects men and women equally; ΔE 24 from the original

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

Contrast with white, large text3.46:1WCAG large text: AA

Contrast with black, large text6.06:1WCAG large text: AAA

Named colours

Tomato · ΔE 5.7 Coral · ΔE 16.8 Orange red · ΔE 21.6 Firebrick · ΔE 21.9 Crimson · ΔE 22.4 Chocolate · ΔE 23

Nearest named CSS colourTomato (#FF6347)ΔE 5.7, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#36D3F1

Analogous#F13676, #F1B236

Triadic#36F154, #5436F1

Split complementary#36F1B2, #3675F1

Tetradic#76F136, #36D3F1, #B136F1

Tints, shades & saturation

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

Lighter +40%#FEF6F5

Lighter +30%#FBCEC5

Lighter +20%#F8A595

Lighter +10%#F47D66

Darker −10%#E43210

Darker −20%#B4270D

Darker −30%#851D09

Darker −40%#551306

More saturated +25%#FF4A28

Less saturated −25%#D66651

Channel breakdown

R241

G84

B54

Red241 (94.5%)

Green84 (32.9%)

Blue54 (21.2%)

Hue9.63°

Saturation (HSL)86.98%

Lightness57.84%

Dominant channelRed

Hex per channelR F1 · G 54 · B 36

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F15436 (chemical formula)

Formula
293,253.128 g/mol
15436 atoms

F15436 has a molar mass of 293,253.128 g/mol, made up of 15436 atoms across 1 element: 15436 × F.

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Molar mass

Molar mass293,253.128 g/mol

Total atoms per molecule15436

Distinct elements1

Mass of one molecule4.8695828 × 10^-19 g

Molecules per gram2.053564 × 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 × 15436)293,253.128 g/mol, 100%

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Elements in this formula

Fluorine

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