Recognised as Colour

#FF6823

#FF6823
Orange
Dark
Nearest: Orange red

#FF6823 is a orange with RGB values 255, 104, 35 and HSL 19°, 100%, 57%. It is a dark colour, so black text on it reaches 7.3:1 contrast (AAA for normal text). The nearest named colour is Orange red.

Colour values

#FF6823#FF6823

HEX#FF6823

RGBrgb(255, 104, 35)

RGB (0–1)1, 0.4078, 0.1373

RGB percentages100%, 40.8%, 13.7%

HSLhsl(18.8, 100%, 56.9%)

HSV / HSBhsv(18.8, 86.3%, 100%)

CMYK0%, 59.2%, 86.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,738,339

CSS custom property--colour: #FF6823;

Brightness & contrast

Relative luminance0.31282WCAG 2.x, 0 is black and 1 is white

Perceived brightness161 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.26:1

Contrast with white2.89:1WCAG normal text: Fail

Contrast with black7.26:1WCAG normal text: AAA

Greyscale equivalent#838383

Inverted#0097DC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#948214no red cones; affects about 1% of men; ΔE 59.9 from the original

Deuteranopia#B9A51Ano green cones; the most common form, about 1% of men; ΔE 61 from the original

Tritanopia#FF415Bno blue cones; rare, and affects men and women equally; ΔE 37.6 from the original

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

Contrast with white, large text2.89:1WCAG large text: Fail

Contrast with black, large text7.26:1WCAG large text: AAA

Named colours

Orange red · ΔE 15.3 Tomato · ΔE 17.2 Coral · ΔE 18.8 Chocolate · ΔE 19.9 Dark orange · ΔE 22.5 Red · ΔE 27.5

Nearest named CSS colourOrange red (#FF4500)ΔE 15.3, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#23BAFF

Analogous#FF234C, #FFD623

Triadic#23FF68, #6823FF

Split complementary#23FFD6, #234CFF

Tetradic#4CFF23, #23BAFF, #D623FF

Tints, shades & saturation

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

Lighter +40%#FFF4EF

Lighter +30%#FFD1BC

Lighter +20%#FFAE89

Lighter +10%#FF8B56

Darker −10%#EF4B00

Darker −20%#BC3B00

Darker −30%#892B00

Darker −40%#561B00

More saturated +25%#FF6823

Less saturated −25%#E3723E

Channel breakdown

R255

G104

B35

Red255 (100%)

Green104 (40.8%)

Blue35 (13.7%)

Hue18.82°

Saturation (HSL)100%

Lightness56.86%

Dominant channelRed

Hex per channelR FF · G 68 · B 23

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF6823 (chemical formula)

Formula
129,642.352 g/mol
6824 atoms

FF6823 has a molar mass of 129,642.352 g/mol, made up of 6824 atoms across 1 element: 6824 × F.

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Molar mass

Molar mass129,642.352 g/mol

Total atoms per molecule6824

Distinct elements1

Mass of one molecule2.1527619 × 10^-19 g

Molecules per gram4.6451955 × 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 × 6824)129,642.352 g/mol, 100%

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Elements in this formula

Fluorine

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