Recognised as Colour

#CD3555

#CD3555
Red
Dark
Nearest: Indian red

#CD3555 is a red with RGB values 205, 53, 85 and HSL 347°, 60%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#CD3555#CD3555

HEX#CD3555

RGBrgb(205, 53, 85)

RGB (0–1)0.8039, 0.2078, 0.3333

RGB percentages80.4%, 20.8%, 33.3%

HSLhsl(347.4, 60.3%, 50.6%)

HSV / HSBhsv(347.4, 74.1%, 80.4%)

CMYK0%, 74.1%, 58.5%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,448,533

CSS custom property--colour: #CD3555;

Brightness & contrast

Relative luminance0.16181WCAG 2.x, 0 is black and 1 is white

Perceived brightness122.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.96:1

Contrast with white4.96:1WCAG normal text: AA

Contrast with black4.24:1WCAG normal text: Fail

Greyscale equivalent#585858

Inverted#32CAAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5C55no red cones; affects about 1% of men; ΔE 63.2 from the original

Deuteranopia#857B51no green cones; the most common form, about 1% of men; ΔE 63.8 from the original

Tritanopia#E00042no blue cones; rare, and affects men and women equally; ΔE 18.3 from the original

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

Contrast with white, large text4.96:1WCAG large text: AAA

Contrast with black, large text4.24:1WCAG large text: AA

Named colours

Indian red · ΔE 17.4 Crimson · ΔE 18.7 Brown · ΔE 19.2 Firebrick · ΔE 21.7 Light coral · ΔE 26 Pale violetred · ΔE 26.8

Nearest named CSS colourIndian red (#CD5C5C)ΔE 17.4, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#35CDAD

Analogous#CD35A1, #CD6135

Triadic#55CD35, #3555CD

Split complementary#35CD61, #35A1CD

Tetradic#A1CD35, #35CDAD, #6135CD

Tints, shades & saturation

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

Lighter +40%#F5D9DF

Lighter +30%#EBB0BC

Lighter +20%#E1879A

Lighter +10%#D75E77

Darker −10%#A62943

Darker −20%#7D1F33

Darker −30%#541522

Darker −40%#2B0B12

More saturated +25%#ED1543

Less saturated −25%#AE5567

Channel breakdown

R205

G53

B85

Red205 (80.4%)

Green53 (20.8%)

Blue85 (33.3%)

Hue347.37°

Saturation (HSL)60.32%

Lightness50.59%

Dominant channelRed

Hex per channelR CD · G 35 · B 55

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd3555 (chemical formula)

Formula
399,617.55 g/mol
3555 atoms

Cd3555 has a molar mass of 399,617.55 g/mol, made up of 3555 atoms across 1 element: 3555 × Cd.

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Molar mass

Molar mass399,617.55 g/mol

Total atoms per molecule3555

Distinct elements1

Mass of one molecule6.6358055 × 10^-19 g

Molecules per gram1.506976 × 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

Cd100%

Cadmium (Cd × 3555)399,617.55 g/mol, 100%

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Elements in this formula

Cadmium

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