Recognised as Colour

#F56100

#F56100
Orange
Dark
Nearest: Orange red

#F56100 is a orange with RGB values 245, 97, 0 and HSL 24°, 100%, 48%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#F56100#F56100

HEX#F56100

RGBrgb(245, 97, 0)

RGB (0–1)0.9608, 0.3804, 0

RGB percentages96.1%, 38%, 0%

HSLhsl(23.8, 100%, 48%)

HSV / HSBhsv(23.8, 100%, 96.1%)

CMYK0%, 60.4%, 100%, 3.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,081,152

CSS custom property--colour: #F56100;

Brightness & contrast

Relative luminance0.27962WCAG 2.x, 0 is black and 1 is white

Perceived brightness153.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.59:1

Contrast with white3.19:1WCAG normal text: Fail

Contrast with black6.59:1WCAG normal text: AA

Greyscale equivalent#797979

Inverted#0A9EFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#8D7B00no red cones; affects about 1% of men; ΔE 59.6 from the original

Deuteranopia#B19D00no green cones; the most common form, about 1% of men; ΔE 59.8 from the original

Tritanopia#FF3853no blue cones; rare, and affects men and women equally; ΔE 41 from the original

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

Contrast with white, large text3.19:1WCAG large text: AA

Contrast with black, large text6.59:1WCAG large text: AAA

Named colours

Orange red · ΔE 14.3 Dark orange · ΔE 20.4 Chocolate · ΔE 21.1 Tomato · ΔE 23.2 Coral · ΔE 24.3 Red · ΔE 27.3

Nearest named CSS colourOrange red (#FF4500)ΔE 14.3, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0094F5

Analogous#F5001A, #F5DC00

Triadic#00F561, #6100F5

Split complementary#00F5DC, #0019F5

Tetradic#19F500, #0094F5, #DC00F5

Tints, shades & saturation

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

Lighter +40%#FFDAC2

Lighter +30%#FFBB8F

Lighter +20%#FF9D5C

Lighter +10%#FF7E29

Darker −10%#C24D00

Darker −20%#8F3900

Darker −30%#5C2400

Darker −40%#291000

More saturated +25%#F56100

Less saturated −25%#D6671F

Channel breakdown

R245

G97

Red245 (96.1%)

Green97 (38%)

Blue0 (0%)

Hue23.76°

Saturation (HSL)100%

Lightness48.04%

Dominant channelRed

Hex per channelR F5 · G 61 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F56100 (chemical formula)

Formula
1,065,787.8 g/mol
56100 atoms

F56100 has a molar mass of 1,065,787.8 g/mol, made up of 56100 atoms across 1 element: 56100 × F.

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Molar mass

Molar mass1,065,787.8 g/mol

Total atoms per molecule56100

Distinct elements1

Mass of one molecule1.7697823 × 10^-18 g

Molecules per gram5.6504125 × 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 × 56100)1,065,787.8 g/mol, 100%

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Elements in this formula

Fluorine

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