Recognised as Colour

#CD2B42

#CD2B42
Red
Dark
Nearest: Crimson

#CD2B42 is a red with RGB values 205, 43, 66 and HSL 351°, 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 Crimson.

Colour values

#CD2B42#CD2B42

HEX#CD2B42

RGBrgb(205, 43, 66)

RGB (0–1)0.8039, 0.1686, 0.2588

RGB percentages80.4%, 16.9%, 25.9%

HSLhsl(351.5, 65.3%, 48.6%)

HSV / HSBhsv(351.5, 79%, 80.4%)

CMYK0%, 79%, 67.8%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,445,954

CSS custom property--colour: #CD2B42;

Brightness & contrast

Relative luminance0.151WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.22:1

Contrast with white5.22:1WCAG normal text: AA

Contrast with black4.02:1WCAG normal text: Fail

Greyscale equivalent#4F4F4F

Inverted#32D4BD

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5C5742no red cones; affects about 1% of men; ΔE 66.6 from the original

Deuteranopia#84793Dno green cones; the most common form, about 1% of men; ΔE 67.2 from the original

Tritanopia#E10035no blue cones; rare, and affects men and women equally; ΔE 15.5 from the original

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

Contrast with white, large text5.22:1WCAG large text: AAA

Contrast with black, large text4.02:1WCAG large text: AA

Named colours

Crimson · ΔE 10.3 Firebrick · ΔE 13.6 Brown · ΔE 15.5 Indian red · ΔE 20.1 Dark red · ΔE 25.1 Tomato · ΔE 25.3

Nearest named CSS colourCrimson (#DC143C)ΔE 10.31, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2BCDB6

Analogous#CD2B93, #CD652B

Triadic#42CD2B, #2B42CD

Split complementary#2BCD65, #2B93CD

Tetradic#93CD2B, #2BCDB6, #652BCD

Tints, shades & saturation

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

Lighter +40%#F5CFD4

Lighter +30%#ECA5AF

Lighter +20%#E37B8A

Lighter +10%#DA5164

Darker −10%#A32234

Darker −20%#791927

Darker −30%#4F1019

Darker −40%#24080C

More saturated +25%#EC0C2C

Less saturated −25%#AE4A58

Channel breakdown

R205

G43

B66

Red205 (80.4%)

Green43 (16.9%)

Blue66 (25.9%)

Hue351.48°

Saturation (HSL)65.32%

Lightness48.63%

Dominant channelRed

Hex per channelR CD · G 2B · B 42

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Cd2B42 (chemical formula)

Formula
678.84 g/mol
44 atoms

Cd2B42 has a molar mass of 678.84 g/mol, made up of 44 atoms across 2 elements: 2 × Cd, 42 × B.

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Molar mass

Molar mass678.84 g/mol

Total atoms per molecule44

Distinct elements2

Mass of one molecule1.1272403 × 10^-21 g

Molecules per gram8.8712226 × 10^20

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

Cd33.1%

B66.9%

Cadmium (Cd × 2)224.82 g/mol, 33.118%

Boron (B × 42)454.02 g/mol, 66.882%

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