Recognised as Colour

#CA642C

#CA642C
Orange
Dark
Nearest: Chocolate

#CA642C is a orange with RGB values 202, 100, 44 and HSL 21°, 64%, 48%. It is a dark colour, so black text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#CA642C#CA642C

HEX#CA642C

RGBrgb(202, 100, 44)

RGB (0–1)0.7922, 0.3922, 0.1725

RGB percentages79.2%, 39.2%, 17.3%

HSLhsl(21.3, 64.2%, 48.2%)

HSV / HSBhsv(21.3, 78.2%, 79.2%)

CMYK0%, 50.5%, 78.2%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,263,916

CSS custom property--colour: #CA642C;

Brightness & contrast

Relative luminance0.21853WCAG 2.x, 0 is black and 1 is white

Perceived brightness135.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.37:1

Contrast with white3.91:1WCAG normal text: Fail

Contrast with black5.37:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#359BD3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#817325no red cones; affects about 1% of men; ΔE 41.6 from the original

Deuteranopia#9A8A2Ano green cones; the most common form, about 1% of men; ΔE 42.1 from the original

Tritanopia#DE4E58no blue cones; rare, and affects men and women equally; ΔE 30.5 from the original

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

Contrast with white, large text3.91:1WCAG large text: AA

Contrast with black, large text5.37:1WCAG large text: AAA

Named colours

Chocolate · ΔE 8.4 Coral · ΔE 15.9 Peru · ΔE 17.4 Sienna · ΔE 18.1 Saddle brown · ΔE 20.9 Tomato · ΔE 22.7

Nearest named CSS colourChocolate (#D2691E)ΔE 8.42, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2C92CA

Analogous#CA2C43, #CAB32C

Triadic#2CCA64, #642CCA

Split complementary#2CCAB3, #2C43CA

Tetradic#43CA2C, #2C92CA, #B32CCA

Tints, shades & saturation

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

Lighter +40%#F4DBCE

Lighter +30%#EBBDA4

Lighter +20%#E29F7A

Lighter +10%#D98150

Darker −10%#A04F23

Darker −20%#763B1A

Darker −30%#4C2611

Darker −40%#221108

More saturated +25%#E95B0D

Less saturated −25%#AB6D4B

Channel breakdown

R202

G100

B44

Red202 (79.2%)

Green100 (39.2%)

Blue44 (17.3%)

Hue21.27°

Saturation (HSL)64.23%

Lightness48.24%

Dominant channelRed

Hex per channelR CA · G 64 · B 2C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

Ca642C (chemical formula)

Formula
25,742.087 g/mol
643 atoms

Ca642C has a molar mass of 25,742.087 g/mol, made up of 643 atoms across 2 elements: 642 × Ca, 1 × C.

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Molar mass

Molar mass25,742.087 g/mol

Total atoms per molecule643

Distinct elements2

Mass of one molecule4.2745741 × 10^-20 g

Molecules per gram2.3394143 × 10^19

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%

C0%

Calcium (Ca × 642)25,730.076 g/mol, 99.953%

Carbon (C)12.011 g/mol, 0.047%

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