Recognised as Colour

#FF8115

#FF8115
Orange
Dark
Nearest: Dark orange

#FF8115 is a orange with RGB values 255, 129, 21 and HSL 28°, 100%, 54%. It is a dark colour, so black text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark orange.

Colour values

#FF8115#FF8115

HEX#FF8115

RGBrgb(255, 129, 21)

RGB (0–1)1, 0.5059, 0.0824

RGB percentages100%, 50.6%, 8.2%

HSLhsl(27.7, 100%, 54.1%)

HSV / HSBhsv(27.7, 91.8%, 100%)

CMYK0%, 49.4%, 91.8%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,744,725

CSS custom property--colour: #FF8115;

Brightness & contrast

Relative luminance0.37015WCAG 2.x, 0 is black and 1 is white

Perceived brightness171.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 8.4:1

Contrast with white2.5:1WCAG normal text: Fail

Contrast with black8.4:1WCAG normal text: AAA

Greyscale equivalent#949494

Inverted#007EEA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#A69200no red cones; affects about 1% of men; ΔE 48.5 from the original

Deuteranopia#C4AF0Fno green cones; the most common form, about 1% of men; ΔE 49.5 from the original

Tritanopia#FF646Fno blue cones; rare, and affects men and women equally; ΔE 48.9 from the original

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

Contrast with white, large text2.5:1WCAG large text: Fail

Contrast with black, large text8.4:1WCAG large text: AAA

Named colours

Dark orange · ΔE 7.7 Chocolate · ΔE 18.8 Orange · ΔE 21.7 Coral · ΔE 23.4 Orange red · ΔE 27.1 Tomato · ΔE 29.2

Nearest named CSS colourDark orange (#FF8C00)ΔE 7.73, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1593FF

Analogous#FF151E, #FFF615

Triadic#15FF81, #8115FF

Split complementary#15FFF6, #151EFF

Tetradic#1EFF15, #1593FF, #F615FF

Tints, shades & saturation

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

Lighter +40%#FFEFE1

Lighter +30%#FFD3AE

Lighter +20%#FFB87B

Lighter +10%#FF9C48

Darker −10%#E16800

Darker −20%#AE5000

Darker −30%#7B3900

Darker −40%#482100

More saturated +25%#FF8115

Less saturated −25%#E28332

Channel breakdown

R255

G129

B21

Red255 (100%)

Green129 (50.6%)

Blue21 (8.2%)

Hue27.69°

Saturation (HSL)100%

Lightness54.12%

Dominant channelRed

Hex per channelR FF · G 81 · B 15

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF8115 (chemical formula)

Formula
154,187.768 g/mol
8116 atoms

FF8115 has a molar mass of 154,187.768 g/mol, made up of 8116 atoms across 1 element: 8116 × F.

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Molar mass

Molar mass154,187.768 g/mol

Total atoms per molecule8116

Distinct elements1

Mass of one molecule2.5603481 × 10^-19 g

Molecules per gram3.9057189 × 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 × 8116)154,187.768 g/mol, 100%

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Elements in this formula

Fluorine

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