Recognised as Colour

#CD2929

#CD2929
Red
Dark
Nearest: Firebrick

#CD2929 is a red with RGB values 205, 41, 41 and HSL 0°, 67%, 48%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CD2929#CD2929

HEX#CD2929

RGBrgb(205, 41, 41)

RGB (0–1)0.8039, 0.1608, 0.1608

RGB percentages80.4%, 16.1%, 16.1%

HSLhsl(0, 66.7%, 48.2%)

HSV / HSBhsv(0, 80%, 80.4%)

CMYK0%, 80%, 80%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,445,417

CSS custom property--colour: #CD2929;

Brightness & contrast

Relative luminance0.14725WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.32:1

Contrast with white5.32:1WCAG normal text: AA

Contrast with black3.95:1WCAG normal text: Fail

Greyscale equivalent#4C4C4C

Inverted#32D6D6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5E5427no red cones; affects about 1% of men; ΔE 66.8 from the original

Deuteranopia#867821no green cones; the most common form, about 1% of men; ΔE 67.2 from the original

Tritanopia#E2002Cno blue cones; rare, and affects men and women equally; ΔE 12 from the original

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

Contrast with white, large text5.32:1WCAG large text: AAA

Contrast with black, large text3.95:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.6 Crimson · ΔE 12.1 Tomato · ΔE 18.1 Brown · ΔE 18.4 Dark red · ΔE 20.4 Maroon · ΔE 24.5

Nearest named CSS colourFirebrick (#B22222)ΔE 9.6, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#29CDCD

Analogous#CD297B, #CD7B29

Triadic#29CD29, #2929CD

Split complementary#29CD7B, #297BCD

Tetradic#7BCD29, #29CDCD, #7B29CD

Tints, shades & saturation

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

Lighter +40%#F5CDCD

Lighter +30%#EDA3A3

Lighter +20%#E47878

Lighter +10%#DC4E4E

Darker −10%#A32020

Darker −20%#781818

Darker −30%#4E0F0F

Darker −40%#230707

More saturated +25%#EC0A0A

Less saturated −25%#AE4848

Channel breakdown

R205

G41

B41

Red205 (80.4%)

Green41 (16.1%)

Blue41 (16.1%)

Hue0°

Saturation (HSL)66.67%

Lightness48.24%

Dominant channelRed

Hex per channelR CD · G 29 · B 29

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd2929 (chemical formula)

Formula
329,248.89 g/mol
2929 atoms

Cd2929 has a molar mass of 329,248.89 g/mol, made up of 2929 atoms across 1 element: 2929 × Cd.

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Molar mass

Molar mass329,248.89 g/mol

Total atoms per molecule2929

Distinct elements1

Mass of one molecule5.4673064 × 10^-19 g

Molecules per gram1.8290542 × 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 × 2929)329,248.89 g/mol, 100%

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Elements in this formula

Cadmium

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