Recognised as Colour

#C16137

#C16137
Orange
Dark
Nearest: Sienna

#C16137 is a orange with RGB values 193, 97, 55 and HSL 18°, 56%, 49%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#C16137#C16137

HEX#C16137

RGBrgb(193, 97, 55)

RGB (0–1)0.7569, 0.3804, 0.2157

RGB percentages75.7%, 38%, 21.6%

HSLhsl(18.3, 55.6%, 48.6%)

HSV / HSBhsv(18.3, 71.5%, 75.7%)

CMYK0%, 49.7%, 71.5%, 24.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,673,335

CSS custom property--colour: #C16137;

Brightness & contrast

Relative luminance0.20163WCAG 2.x, 0 is black and 1 is white

Perceived brightness130.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.03:1

Contrast with white4.17:1WCAG normal text: Fail

Contrast with black5.03:1WCAG normal text: AA

Greyscale equivalent#727272

Inverted#3E9EC8

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7B6F32no red cones; affects about 1% of men; ΔE 39.7 from the original

Deuteranopia#938435no green cones; the most common form, about 1% of men; ΔE 39.8 from the original

Tritanopia#D34D58no blue cones; rare, and affects men and women equally; ΔE 25.9 from the original

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

Contrast with white, large text4.17:1WCAG large text: AA

Contrast with black, large text5.03:1WCAG large text: AAA

Named colours

Sienna · ΔE 11.4 Chocolate · ΔE 16.5 Saddle brown · ΔE 17 Peru · ΔE 18.4 Coral · ΔE 19.5 Indian red · ΔE 21

Nearest named CSS colourSienna (#A0522D)ΔE 11.41, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3797C1

Analogous#C13752, #C1A637

Triadic#37C161, #6137C1

Split complementary#37C1A6, #3752C1

Tetradic#52C137, #3797C1, #A637C1

Tints, shades & saturation

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

Lighter +40%#F2DCD2

Lighter +30%#E7BDAA

Lighter +20%#DC9E82

Lighter +10%#D07F5B

Darker −10%#994D2C

Darker −20%#723920

Darker −30%#4A2515

Darker −40%#22110A

More saturated +25%#E05518

Less saturated −25%#A26D56

Channel breakdown

R193

G97

B55

Red193 (75.7%)

Green97 (38%)

Blue55 (21.6%)

Hue18.26°

Saturation (HSL)55.65%

Lightness48.63%

Dominant channelRed

Hex per channelR C1 · G 61 · B 37

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C16137 (chemical formula)

Formula
193,821.507 g/mol
16137 atoms

C16137 has a molar mass of 193,821.507 g/mol, made up of 16137 atoms across 1 element: 16137 × C.

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Molar mass

Molar mass193,821.507 g/mol

Total atoms per molecule16137

Distinct elements1

Mass of one molecule3.2184818 × 10^-19 g

Molecules per gram3.107055 × 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

C100%

Carbon (C × 16137)193,821.507 g/mol, 100%

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Elements in this formula

Carbon

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