Recognised as Colour

#FF6C28

#FF6C28
Orange
Dark
Nearest: Tomato

#FF6C28 is a orange with RGB values 255, 108, 40 and HSL 19°, 100%, 58%. It is a dark colour, so black text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Tomato.

Colour values

#FF6C28#FF6C28

HEX#FF6C28

RGBrgb(255, 108, 40)

RGB (0–1)1, 0.4235, 0.1569

RGB percentages100%, 42.4%, 15.7%

HSLhsl(19, 100%, 57.8%)

HSV / HSBhsv(19, 84.3%, 100%)

CMYK0%, 57.6%, 84.3%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,739,368

CSS custom property--colour: #FF6C28;

Brightness & contrast

Relative luminance0.32138WCAG 2.x, 0 is black and 1 is white

Perceived brightness162.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 7.43:1

Contrast with white2.83:1WCAG normal text: Fail

Contrast with black7.43:1WCAG normal text: AAA

Greyscale equivalent#868686

Inverted#0093D7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#96851Bno red cones; affects about 1% of men; ΔE 58.7 from the original

Deuteranopia#BAA621no green cones; the most common form, about 1% of men; ΔE 59.2 from the original

Tritanopia#FF485Fno blue cones; rare, and affects men and women equally; ΔE 37.3 from the original

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

Contrast with white, large text2.83:1WCAG large text: Fail

Contrast with black, large text7.43:1WCAG large text: AAA

Named colours

Tomato · ΔE 16.4 Coral · ΔE 16.8 Orange red · ΔE 17.5 Chocolate · ΔE 18.3 Dark orange · ΔE 21.8 Red · ΔE 29.6

Nearest named CSS colourTomato (#FF6347)ΔE 16.43, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#28BBFF

Analogous#FF284F, #FFD728

Triadic#28FF6C, #6C28FF

Split complementary#28FFD7, #2850FF

Tetradic#4FFF28, #28BBFF, #D828FF

Tints, shades & saturation

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

Lighter +40%#FFF7F4

Lighter +30%#FFD5C1

Lighter +20%#FFB28E

Lighter +10%#FF8F5B

Darker −10%#F44D00

Darker −20%#C13D00

Darker −30%#8E2D00

Darker −40%#5B1D00

More saturated +25%#FF6C28

Less saturated −25%#E47643

Channel breakdown

R255

G108

B40

Red255 (100%)

Green108 (42.4%)

Blue40 (15.7%)

Hue18.98°

Saturation (HSL)100%

Lightness57.84%

Dominant channelRed

Hex per channelR FF · G 6C · B 28

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FF6C28 (chemical formula)

Formula
469.294 g/mol
35 atoms

FF6C28 has a molar mass of 469.294 g/mol, made up of 35 atoms across 2 elements: 7 × F, 28 × C.

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Molar mass

Molar mass469.294 g/mol

Total atoms per molecule35

Distinct elements2

Mass of one molecule7.7928102 × 10^-22 g

Molecules per gram1.2832341 × 10^21

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

F28.3%

C71.7%

Fluorine (F × 7)132.986 g/mol, 28.337%

Carbon (C × 28)336.308 g/mol, 71.663%

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