Recognised as Colour

#FF6318

#FF6318
Orange
Dark
Nearest: Orange red

#FF6318 is a orange with RGB values 255, 99, 24 and HSL 19°, 100%, 55%. It is a dark colour, so black text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Orange red.

Colour values

#FF6318#FF6318

HEX#FF6318

RGBrgb(255, 99, 24)

RGB (0–1)1, 0.3882, 0.0941

RGB percentages100%, 38.8%, 9.4%

HSLhsl(19.5, 100%, 54.7%)

HSV / HSBhsv(19.5, 90.6%, 100%)

CMYK0%, 61.2%, 90.6%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,737,048

CSS custom property--colour: #FF6318;

Brightness & contrast

Relative luminance0.3025WCAG 2.x, 0 is black and 1 is white

Perceived brightness158.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.05:1

Contrast with white2.98:1WCAG normal text: Fail

Contrast with black7.05:1WCAG normal text: AAA

Greyscale equivalent#7F7F7F

Inverted#009CE7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#917F00no red cones; affects about 1% of men; ΔE 62.1 from the original

Deuteranopia#B7A308no green cones; the most common form, about 1% of men; ΔE 63.1 from the original

Tritanopia#FF3856no blue cones; rare, and affects men and women equally; ΔE 38.9 from the original

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

Contrast with white, large text2.98:1WCAG large text: Fail

Contrast with black, large text7.05:1WCAG large text: AAA

Named colours

Orange red · ΔE 12.3 Tomato · ΔE 19.8 Chocolate · ΔE 22.4 Coral · ΔE 22.5 Dark orange · ΔE 23.1 Red · ΔE 25.1

Nearest named CSS colourOrange red (#FF4500)ΔE 12.35, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18B4FF

Analogous#FF1840, #FFD718

Triadic#18FF63, #6318FF

Split complementary#18FFD6, #1841FF

Tetradic#40FF18, #18B4FF, #D618FF

Tints, shades & saturation

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

Lighter +40%#FFEDE4

Lighter +30%#FFCAB1

Lighter +20%#FFA87E

Lighter +10%#FF854B

Darker −10%#E44A00

Darker −20%#B13900

Darker −30%#7E2900

Darker −40%#4B1800

More saturated +25%#FF6318

Less saturated −25%#E26D35

Channel breakdown

R255

G99

B24

Red255 (100%)

Green99 (38.8%)

Blue24 (9.4%)

Hue19.48°

Saturation (HSL)100%

Lightness54.71%

Dominant channelRed

Hex per channelR FF · G 63 · B 18

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF6318 (chemical formula)

Formula
120,048.362 g/mol
6319 atoms

FF6318 has a molar mass of 120,048.362 g/mol, made up of 6319 atoms across 1 element: 6319 × F.

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Molar mass

Molar mass120,048.362 g/mol

Total atoms per molecule6319

Distinct elements1

Mass of one molecule1.99345 × 10^-19 g

Molecules per gram5.0164289 × 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 × 6319)120,048.362 g/mol, 100%

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Elements in this formula

Fluorine

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