Recognised as Colour

#CF5566

#CF5566
Red
Dark
Nearest: Indian red

#CF5566 is a red with RGB values 207, 85, 102 and HSL 352°, 56%, 57%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#CF5566#CF5566

HEX#CF5566

RGBrgb(207, 85, 102)

RGB (0–1)0.8118, 0.3333, 0.4

RGB percentages81.2%, 33.3%, 40%

HSLhsl(351.6, 56%, 57.3%)

HSV / HSBhsv(351.6, 58.9%, 81.2%)

CMYK0%, 58.9%, 50.7%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,587,814

CSS custom property--colour: #CF5566;

Brightness & contrast

Relative luminance0.20722WCAG 2.x, 0 is black and 1 is white

Perceived brightness135.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.14:1

Contrast with white4.08:1WCAG normal text: Fail

Contrast with black5.14:1WCAG normal text: AA

Greyscale equivalent#707070

Inverted#30AA99

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#706E66no red cones; affects about 1% of men; ΔE 51.9 from the original

Deuteranopia#908763no green cones; the most common form, about 1% of men; ΔE 52.6 from the original

Tritanopia#E1425Cno blue cones; rare, and affects men and women equally; ΔE 14.3 from the original

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

Contrast with white, large text4.08:1WCAG large text: AA

Contrast with black, large text5.14:1WCAG large text: AAA

Named colours

Indian red · ΔE 8.4 Light coral · ΔE 15.8 Pale violetred · ΔE 17.3 Salmon · ΔE 20.6 Brown · ΔE 21.5 Firebrick · ΔE 26.9

Nearest named CSS colourIndian red (#CD5C5C)ΔE 8.44, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#55CFBE

Analogous#CF55A3, #CF8155

Triadic#66CF55, #5566CF

Split complementary#55CF81, #55A3CF

Tetradic#A3CF55, #55CFBE, #8155CF

Tints, shades & saturation

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

Lighter +40%#FCF4F5

Lighter +30%#F1CCD1

Lighter +20%#E5A5AE

Lighter +10%#DA7D8A

Darker −10%#BC3548

Darker −20%#942A39

Darker −30%#6C1F29

Darker −40%#45131A

More saturated +25%#EA3A52

Less saturated −25%#B4707A

Channel breakdown

R207

G85

B102

Red207 (81.2%)

Green85 (33.3%)

Blue102 (40%)

Hue351.64°

Saturation (HSL)55.96%

Lightness57.25%

Dominant channelRed

Hex per channelR CF · G 55 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CF5566 (chemical formula)

Formula
105,754.879 g/mol
5567 atoms

CF5566 has a molar mass of 105,754.879 g/mol, made up of 5567 atoms across 2 elements: 1 × C, 5566 × F.

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Molar mass

Molar mass105,754.879 g/mol

Total atoms per molecule5567

Distinct elements2

Mass of one molecule1.7561011 × 10^-19 g

Molecules per gram5.694433 × 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

C0%

F100%

Carbon (C)12.011 g/mol, 0.011%

Fluorine (F × 5566)105,742.868 g/mol, 99.989%

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