Recognised as Colour

#FC4928

#FC4928
Red
Dark
Nearest: Orange red

#FC4928 is a red with RGB values 252, 73, 40 and HSL 9°, 97%, 57%. 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

#FC4928#FC4928

HEX#FC4928

RGBrgb(252, 73, 40)

RGB (0–1)0.9882, 0.2863, 0.1569

RGB percentages98.8%, 28.6%, 15.7%

HSLhsl(9.3, 97.2%, 57.3%)

HSV / HSBhsv(9.3, 84.1%, 98.8%)

CMYK0%, 71%, 84.1%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,533,800

CSS custom property--colour: #FC4928;

Brightness & contrast

Relative luminance0.25614WCAG 2.x, 0 is black and 1 is white

Perceived brightness149.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.12:1

Contrast with white3.43:1WCAG normal text: Fail

Contrast with black6.12:1WCAG normal text: AA

Greyscale equivalent#6D6D6D

Inverted#03B6D7

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7F7121no red cones; affects about 1% of men; ΔE 72 from the original

Deuteranopia#AC991Cno green cones; the most common form, about 1% of men; ΔE 72 from the original

Tritanopia#FF0044no blue cones; rare, and affects men and women equally; ΔE 24.3 from the original

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

Contrast with white, large text3.43:1WCAG large text: AA

Contrast with black, large text6.12:1WCAG large text: AAA

Named colours

Orange red · ΔE 12.2 Tomato · ΔE 14 Red · ΔE 18 Coral · ΔE 24.7 Crimson · ΔE 26.1 Firebrick · ΔE 28.6

Nearest named CSS colourOrange red (#FF4500)ΔE 12.18, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#28DBFC

Analogous#FC2871, #FCB328

Triadic#28FC49, #4928FC

Split complementary#28FCB3, #2871FC

Tetradic#71FC28, #28DBFC, #B328FC

Tints, shades & saturation

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

Lighter +40%#FFF3F1

Lighter +30%#FEC9BF

Lighter +20%#FD9E8D

Lighter +10%#FD745A

Darker −10%#EE2803

Darker −20%#BB1F03

Darker −30%#891702

Darker −40%#570F01

More saturated +25%#FF4725

Less saturated −25%#E15C43

Channel breakdown

R252

G73

B40

Red252 (98.8%)

Green73 (28.6%)

Blue40 (15.7%)

Hue9.34°

Saturation (HSL)97.25%

Lightness57.25%

Dominant channelRed

Hex per channelR FC · G 49 · B 28

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC4928 (chemical formula)

Formula
59,209.206 g/mol
4929 atoms

FC4928 has a molar mass of 59,209.206 g/mol, made up of 4929 atoms across 2 elements: 1 × F, 4928 × C.

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Molar mass

Molar mass59,209.206 g/mol

Total atoms per molecule4929

Distinct elements2

Mass of one molecule9.83192 × 10^-20 g

Molecules per gram1.0170953 × 10^19

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

F0%

C100%

Fluorine (F)18.998 g/mol, 0.032%

Carbon (C × 4928)59,190.208 g/mol, 99.968%

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