Recognised as Colour

#CA1856

#CA1856
Red
Dark
Nearest: Crimson

#CA1856 is a red with RGB values 202, 24, 86 and HSL 339°, 79%, 44%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CA1856#CA1856

HEX#CA1856

RGBrgb(202, 24, 86)

RGB (0–1)0.7922, 0.0941, 0.3373

RGB percentages79.2%, 9.4%, 33.7%

HSLhsl(339.1, 78.8%, 44.3%)

HSV / HSBhsv(339.1, 88.1%, 79.2%)

CMYK0%, 88.1%, 57.4%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,244,502

CSS custom property--colour: #CA1856;

Brightness & contrast

Relative luminance0.13882WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.56:1

Contrast with white5.56:1WCAG normal text: AA

Contrast with black3.78:1WCAG normal text: Fail

Greyscale equivalent#424242

Inverted#35E7A9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#505257no red cones; affects about 1% of men; ΔE 69.4 from the original

Deuteranopia#7D7452no green cones; the most common form, about 1% of men; ΔE 69.8 from the original

Tritanopia#DD0036no blue cones; rare, and affects men and women equally; ΔE 24.4 from the original

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

Contrast with white, large text5.56:1WCAG large text: AAA

Contrast with black, large text3.78:1WCAG large text: AA

Named colours

Crimson · ΔE 21.1 Brown · ΔE 25.6 Indian red · ΔE 25.9 Firebrick · ΔE 27.5 Deep pink · ΔE 28.2 Medium violet red · ΔE 28.5

Nearest named CSS colourCrimson (#DC143C)ΔE 21.1, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#18CA8C

Analogous#CA18AF, #CA3318

Triadic#56CA18, #1856CA

Split complementary#18CA33, #18AFCA

Tetradic#AFCA18, #18CA8C, #3318CA

Tints, shades & saturation

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

Lighter +40%#F7B7CD

Lighter +30%#F18AAE

Lighter +20%#EC5C8E

Lighter +10%#E62F6F

Darker −10%#9C1343

Darker −20%#6F0D2F

Darker −30%#41081C

Darker −40%#140208

More saturated +25%#E2004F

Less saturated −25%#AE345F

Channel breakdown

R202

G24

B86

Red202 (79.2%)

Green24 (9.4%)

Blue86 (33.7%)

Hue339.1°

Saturation (HSL)78.76%

Lightness44.31%

Dominant channelRed

Hex per channelR CA · G 18 · B 56

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca1856 (chemical formula)

Formula
74,384.768 g/mol
1856 atoms

Ca1856 has a molar mass of 74,384.768 g/mol, made up of 1856 atoms across 1 element: 1856 × Ca.

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Molar mass

Molar mass74,384.768 g/mol

Total atoms per molecule1856

Distinct elements1

Mass of one molecule1.2351881 × 10^-19 g

Molecules per gram8.0959327 × 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

Ca100%

Calcium (Ca × 1856)74,384.768 g/mol, 100%

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Elements in this formula

Calcium

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