Recognised as Colour

#F65103

#F65103
Orange
Dark
Nearest: Orange red

#F65103 is a orange with RGB values 246, 81, 3 and HSL 19°, 98%, 49%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.

Colour values

#F65103#F65103

HEX#F65103

RGBrgb(246, 81, 3)

RGB (0–1)0.9647, 0.3176, 0.0118

RGB percentages96.5%, 31.8%, 1.2%

HSLhsl(19.3, 97.6%, 48.8%)

HSV / HSBhsv(19.3, 98.8%, 96.5%)

CMYK0%, 67.1%, 98.8%, 3.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,142,595

CSS custom property--colour: #F65103;

Brightness & contrast

Relative luminance0.25484WCAG 2.x, 0 is black and 1 is white

Perceived brightness148.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.1:1

Contrast with white3.44:1WCAG normal text: Fail

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

Greyscale equivalent#6E6E6E

Inverted#09AEFC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#837300no red cones; affects about 1% of men; ΔE 67 from the original

Deuteranopia#AB9800no green cones; the most common form, about 1% of men; ΔE 66.9 from the original

Tritanopia#FF0E46no blue cones; rare, and affects men and women equally; ΔE 35.9 from the original

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

Contrast with white, large text3.44:1WCAG large text: AA

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

Named colours

Orange red · ΔE 7.3 Red · ΔE 19.9 Tomato · ΔE 21.7 Chocolate · ΔE 26 Coral · ΔE 27 Dark orange · ΔE 27.9

Nearest named CSS colourOrange red (#FF4500)ΔE 7.27, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03A8F6

Analogous#F6032F, #F6CA03

Triadic#03F651, #5103F6

Split complementary#03F6CA, #032FF6

Tetradic#2FF603, #03A8F6, #CA03F6

Tints, shades & saturation

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

Lighter +40%#FED9C7

Lighter +30%#FEB694

Lighter +20%#FD9462

Lighter +10%#FC7130

Darker −10%#C44002

Darker −20%#913002

Darker −30%#5F1F01

Darker −40%#2C0F01

More saturated +25%#F95000

Less saturated −25%#D75C22

Channel breakdown

R246

G81

Red246 (96.5%)

Green81 (31.8%)

Blue3 (1.2%)

Hue19.26°

Saturation (HSL)97.59%

Lightness48.82%

Dominant channelRed

Hex per channelR F6 · G 51 · B 03

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Harmonies

Lighter and darker

Similar named colours

Also reads as

F65103 (chemical formula)

Formula
1,236,826.794 g/mol
65103 atoms

F65103 has a molar mass of 1,236,826.794 g/mol, made up of 65103 atoms across 1 element: 65103 × F.

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Molar mass

Molar mass1,236,826.794 g/mol

Total atoms per molecule65103

Distinct elements1

Mass of one molecule2.0537992 × 10^-18 g

Molecules per gram4.8690251 × 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 × 65103)1,236,826.794 g/mol, 100%

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Elements in this formula

Fluorine

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