Recognised as Colour

#CD2F2C

#CD2F2C
Red
Dark
Nearest: Firebrick

#CD2F2C is a red with RGB values 205, 47, 44 and HSL 1°, 65%, 49%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CD2F2C#CD2F2C

HEX#CD2F2C

RGBrgb(205, 47, 44)

RGB (0–1)0.8039, 0.1843, 0.1725

RGB percentages80.4%, 18.4%, 17.3%

HSLhsl(1.1, 64.7%, 48.8%)

HSV / HSBhsv(1.1, 78.5%, 80.4%)

CMYK0%, 77.1%, 78.5%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,446,956

CSS custom property--colour: #CD2F2C;

Brightness & contrast

Relative luminance0.15194WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.2:1

Contrast with white5.2:1WCAG normal text: AA

Contrast with black4.04:1WCAG normal text: Fail

Greyscale equivalent#505050

Inverted#32D0D3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#60572Ano red cones; affects about 1% of men; ΔE 65.5 from the original

Deuteranopia#877925no green cones; the most common form, about 1% of men; ΔE 65.4 from the original

Tritanopia#E20031no blue cones; rare, and affects men and women equally; ΔE 13.6 from the original

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

Contrast with white, large text5.2:1WCAG large text: AAA

Contrast with black, large text4.04:1WCAG large text: AA

Named colours

Firebrick · ΔE 8.7 Crimson · ΔE 12.7 Brown · ΔE 17 Tomato · ΔE 17.5 Dark red · ΔE 20.2 Maroon · ΔE 24

Nearest named CSS colourFirebrick (#B22222)ΔE 8.72, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2CCACD

Analogous#CD2C79, #CD802C

Triadic#2CCD2F, #2F2CCD

Split complementary#2CCD80, #2C7ACD

Tetradic#79CD2C, #2CCACD, #802CCD

Tints, shades & saturation

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

Lighter +40%#F5D1D0

Lighter +30%#ECA7A6

Lighter +20%#E37E7C

Lighter +10%#DA5552

Darker −10%#A32523

Darker −20%#791C1A

Darker −30%#4F1211

Darker −40%#250808

More saturated +25%#EC110D

Less saturated −25%#AE4D4B

Channel breakdown

R205

G47

B44

Red205 (80.4%)

Green47 (18.4%)

Blue44 (17.3%)

Hue1.12°

Saturation (HSL)64.66%

Lightness48.82%

Dominant channelRed

Hex per channelR CD · G 2F · B 2C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd2F2C (chemical formula)

Formula
274.827 g/mol
5 atoms

Cd2F2C has a molar mass of 274.827 g/mol, made up of 5 atoms across 3 elements: 2 × Cd, 2 × F, 1 × C.

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Molar mass

Molar mass274.827 g/mol

Total atoms per molecule5

Distinct elements3

Mass of one molecule4.5636097 × 10^-22 g

Molecules per gram2.1912479 × 10^21

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

Cd81.8%

F13.8%

C4.4%

Cadmium (Cd × 2)224.82 g/mol, 81.804%

Fluorine (F × 2)37.996 g/mol, 13.825%

Carbon (C)12.011 g/mol, 4.37%

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