Recognised as Colour

#FC1000

#FC1000
Red
Dark
Nearest: Red

#FC1000 is a red with RGB values 252, 16, 0 and HSL 4°, 100%, 49%. It is a dark colour, so black text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Red.

Colour values

#FC1000#FC1000

HEX#FC1000

RGBrgb(252, 16, 0)

RGB (0–1)0.9882, 0.0627, 0

RGB percentages98.8%, 6.3%, 0%

HSLhsl(3.8, 100%, 49.4%)

HSV / HSBhsv(3.8, 100%, 98.8%)

CMYK0%, 93.7%, 100%, 1.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer16,519,168

CSS custom property--colour: #FC1000;

Brightness & contrast

Relative luminance0.21066WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.21:1

Contrast with white4.03:1WCAG normal text: Fail

Contrast with black5.21:1WCAG normal text: AA

Greyscale equivalent#414141

Inverted#03EFFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6D5F00no red cones; affects about 1% of men; ΔE 84.9 from the original

Deuteranopia#A28F00no green cones; the most common form, about 1% of men; ΔE 83.8 from the original

Tritanopia#FF0016no blue cones; rare, and affects men and women equally; ΔE 5.9 from the original

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

Contrast with white, large text4.03:1WCAG large text: AA

Contrast with black, large text5.21:1WCAG large text: AAA

Named colours

Red · ΔE 2 Orange red · ΔE 11.6 Tomato · ΔE 30.2 Crimson · ΔE 34.5 Firebrick · ΔE 39.2 Coral · ΔE 40.7

Nearest named CSS colourRed (#FF0000)ΔE 1.96, below the just-noticeable difference

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#00ECFC

Analogous#FC006E, #FC8E00

Triadic#00FC10, #1000FC

Split complementary#00FC8E, #006EFC

Tetradic#6EFC00, #00ECFC, #8E00FC

Tints, shades & saturation

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

Lighter +40%#FFCCC9

Lighter +30%#FF9D96

Lighter +20%#FF6D63

Lighter +10%#FF3D30

Darker −10%#C90D00

Darker −20%#960A00

Darker −30%#630600

Darker −40%#300300

More saturated +25%#FC1000

Less saturated −25%#DD2B20

Channel breakdown

R252

G16

Red252 (98.8%)

Green16 (6.3%)

Blue0 (0%)

Hue3.81°

Saturation (HSL)100%

Lightness49.41%

Dominant channelRed

Hex per channelR FC · G 10 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

FC1000 (chemical formula)

Formula
12,029.998 g/mol
1001 atoms

FC1000 has a molar mass of 12,029.998 g/mol, made up of 1001 atoms across 2 elements: 1 × F, 1000 × C.

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Molar mass

Molar mass12,029.998 g/mol

Total atoms per molecule1001

Distinct elements2

Mass of one molecule1.9976282 × 10^-20 g

Molecules per gram5.0059366 × 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

F0.2%

C99.8%

Fluorine (F)18.998 g/mol, 0.158%

Carbon (C × 1000)12,011 g/mol, 99.842%

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