Recognised as Colour

#F78531

#F78531
Orange
Dark
Nearest: Chocolate

#F78531 is a orange with RGB values 247, 133, 49 and HSL 25°, 93%, 58%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Chocolate.

Colour values

#F78531#F78531

HEX#F78531

RGBrgb(247, 133, 49)

RGB (0–1)0.9686, 0.5216, 0.1922

RGB percentages96.9%, 52.2%, 19.2%

HSLhsl(25.5, 92.5%, 58%)

HSV / HSBhsv(25.5, 80.2%, 96.9%)

CMYK0%, 46.2%, 80.2%, 3.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,221,489

CSS custom property--colour: #F78531;

Brightness & contrast

Relative luminance0.36771WCAG 2.x, 0 is black and 1 is white

Perceived brightness170 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.35:1

Contrast with white2.51:1WCAG normal text: Fail

Contrast with black8.35:1WCAG normal text: AAA

Greyscale equivalent#979797

Inverted#087ACE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#A69424no red cones; affects about 1% of men; ΔE 43.9 from the original

Deuteranopia#C2AD2Fno green cones; the most common form, about 1% of men; ΔE 43.9 from the original

Tritanopia#FF6C74no blue cones; rare, and affects men and women equally; ΔE 41.5 from the original

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

Contrast with white, large text2.51:1WCAG large text: Fail

Contrast with black, large text8.35:1WCAG large text: AAA

Named colours

Chocolate · ΔE 12 Dark orange · ΔE 14.5 Coral · ΔE 15.6 Sandy brown · ΔE 21.9 Peru · ΔE 22 Orange · ΔE 23.9

Nearest named CSS colourChocolate (#D2691E)ΔE 12.04, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#31A3F7

Analogous#F73140, #F7E831

Triadic#31F785, #8531F7

Split complementary#31F7E8, #3140F7

Tetradic#40F731, #31A3F7, #E831F7

Tints, shades & saturation

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

Lighter +40%#FFF9F5

Lighter +30%#FDDCC4

Lighter +20%#FBBF93

Lighter +10%#F9A262

Darker −10%#EC6909

Darker −20%#BB5307

Darker −30%#8A3D05

Darker −40%#592803

More saturated +25%#FF8429

Less saturated −25%#DC894C

Channel breakdown

R247

G133

B49

Red247 (96.9%)

Green133 (52.2%)

Blue49 (19.2%)

Hue25.45°

Saturation (HSL)92.52%

Lightness58.04%

Dominant channelRed

Hex per channelR F7 · G 85 · B 31

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F78531 (chemical formula)

Formula
1,491,931.938 g/mol
78531 atoms

F78531 has a molar mass of 1,491,931.938 g/mol, made up of 78531 atoms across 1 element: 78531 × F.

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Molar mass

Molar mass1,491,931.938 g/mol

Total atoms per molecule78531

Distinct elements1

Mass of one molecule2.4774113 × 10^-18 g

Molecules per gram4.0364715 × 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 × 78531)1,491,931.938 g/mol, 100%

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Elements in this formula

Fluorine

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