Recognised as Colour

#CD2039

#CD2039
Red
Dark
Nearest: Crimson

#CD2039 is a red with RGB values 205, 32, 57 and HSL 351°, 73%, 46%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CD2039#CD2039

HEX#CD2039

RGBrgb(205, 32, 57)

RGB (0–1)0.8039, 0.1255, 0.2235

RGB percentages80.4%, 12.5%, 22.4%

HSLhsl(351.3, 73%, 46.5%)

HSV / HSBhsv(351.3, 84.4%, 80.4%)

CMYK0%, 84.4%, 72.2%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,443,129

CSS custom property--colour: #CD2039;

Brightness & contrast

Relative luminance0.14308WCAG 2.x, 0 is black and 1 is white

Perceived brightness116.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.44:1

Contrast with white5.44:1WCAG normal text: AA

Contrast with black3.86:1WCAG normal text: Fail

Greyscale equivalent#474747

Inverted#32DFC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#595238no red cones; affects about 1% of men; ΔE 68.9 from the original

Deuteranopia#837633no green cones; the most common form, about 1% of men; ΔE 69.1 from the original

Tritanopia#E2002Cno blue cones; rare, and affects men and women equally; ΔE 15 from the original

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

Contrast with white, large text5.44:1WCAG large text: AAA

Contrast with black, large text3.86:1WCAG large text: AA

Named colours

Crimson · ΔE 6.8 Firebrick · ΔE 12 Brown · ΔE 16.8 Dark red · ΔE 23.6 Tomato · ΔE 23.8 Indian red · ΔE 23.9

Nearest named CSS colourCrimson (#DC143C)ΔE 6.75, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#20CDB4

Analogous#CD2090, #CD5E20

Triadic#39CD20, #2039CD

Split complementary#20CD5E, #2090CD

Tetradic#8FCD20, #20CDB4, #5D20CD

Tints, shades & saturation

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

Lighter +40%#F6C3CB

Lighter +30%#EF97A4

Lighter +20%#E86B7D

Lighter +10%#E13F56

Darker −10%#A1192D

Darker −20%#751220

Darker −30%#490B14

Darker −40%#1D0408

More saturated +25%#EB0224

Less saturated −25%#AF3E4E

Channel breakdown

R205

G32

B57

Red205 (80.4%)

Green32 (12.5%)

Blue57 (22.4%)

Hue351.33°

Saturation (HSL)73%

Lightness46.47%

Dominant channelRed

Hex per channelR CD · G 20 · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd2039 (chemical formula)

Formula
229,203.99 g/mol
2039 atoms

Cd2039 has a molar mass of 229,203.99 g/mol, made up of 2039 atoms across 1 element: 2039 × Cd.

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Molar mass

Molar mass229,203.99 g/mol

Total atoms per molecule2039

Distinct elements1

Mass of one molecule3.8060218 × 10^-19 g

Molecules per gram2.6274153 × 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 × 2039)229,203.99 g/mol, 100%

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Elements in this formula

Cadmium

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