Recognised as Colour

#DB4545

#DB4545
Red
Dark
Nearest: Firebrick

#DB4545 is a red with RGB values 219, 69, 69 and HSL 0°, 68%, 56%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#DB4545#DB4545

HEX#DB4545

RGBrgb(219, 69, 69)

RGB (0–1)0.8588, 0.2706, 0.2706

RGB percentages85.9%, 27.1%, 27.1%

HSLhsl(0, 67.6%, 56.5%)

HSV / HSBhsv(0, 68.5%, 85.9%)

CMYK0%, 68.5%, 68.5%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,370,117

CSS custom property--colour: #DB4545;

Brightness & contrast

Relative luminance0.19746WCAG 2.x, 0 is black and 1 is white

Perceived brightness133 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.95:1

Contrast with white4.24:1WCAG normal text: Fail

Contrast with black4.95:1WCAG normal text: AA

Greyscale equivalent#656565

Inverted#24BABA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#6F6644no red cones; affects about 1% of men; ΔE 62.1 from the original

Deuteranopia#948740no green cones; the most common form, about 1% of men; ΔE 63.2 from the original

Tritanopia#F01747no blue cones; rare, and affects men and women equally; ΔE 17.7 from the original

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

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

Contrast with black, large text4.95:1WCAG large text: AAA

Named colours

Firebrick · ΔE 13.3 Crimson · ΔE 13.5 Tomato · ΔE 16.6 Brown · ΔE 16.7 Indian red · ΔE 17.7 Salmon · ΔE 20.9

Nearest named CSS colourFirebrick (#B22222)ΔE 13.26, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#45DBDB

Analogous#DB4590, #DB9045

Triadic#45DB45, #4545DB

Split complementary#45DB90, #4590DB

Tetradic#90DB45, #45DBDB, #9045DB

Tints, shades & saturation

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

Lighter +40%#FCF0F0

Lighter +30%#F4C5C5

Lighter +20%#EC9A9A

Lighter +10%#E37070

Darker −10%#C72626

Darker −20%#9C1E1E

Darker −30%#711616

Darker −40%#460E0E

More saturated +25%#F72929

Less saturated −25%#BF6161

Channel breakdown

R219

G69

B69

Red219 (85.9%)

Green69 (27.1%)

Blue69 (27.1%)

Hue0°

Saturation (HSL)67.57%

Lightness56.47%

Dominant channelRed

Hex per channelR DB · G 45 · B 45

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Db4545 (chemical formula)

Formula
1,218,060 g/mol
4545 atoms

Db4545 has a molar mass of 1,218,060 g/mol, made up of 4545 atoms across 1 element: 4545 × Db.

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Molar mass

Molar mass1,218,060 g/mol

Total atoms per molecule4545

Distinct elements1

Mass of one molecule2.0226362 × 10^-18 g

Molecules per gram4.9440428 × 10^17

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

Db100%

Dubnium (Db × 4545)1,218,060 g/mol, 100%

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Elements in this formula

Dubnium

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