Recognised as Colour

#C1691F

#C1691F
Orange
Dark
Nearest: Chocolate

#C1691F is a orange with RGB values 193, 105, 31 and HSL 27°, 72%, 44%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#C1691F#C1691F

HEX#C1691F

RGBrgb(193, 105, 31)

RGB (0–1)0.7569, 0.4118, 0.1216

RGB percentages75.7%, 41.2%, 12.2%

HSLhsl(27.4, 72.3%, 43.9%)

HSV / HSBhsv(27.4, 83.9%, 75.7%)

CMYK0%, 45.6%, 83.9%, 24.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,675,359

CSS custom property--colour: #C1691F;

Brightness & contrast

Relative luminance0.2154WCAG 2.x, 0 is black and 1 is white

Perceived brightness133.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.31:1

Contrast with white3.96:1WCAG normal text: Fail

Contrast with black5.31:1WCAG normal text: AA

Greyscale equivalent#767676

Inverted#3E96E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#837411no red cones; affects about 1% of men; ΔE 35.1 from the original

Deuteranopia#98881Eno green cones; the most common form, about 1% of men; ΔE 35.7 from the original

Tritanopia#D4555Bno blue cones; rare, and affects men and women equally; ΔE 36.8 from the original

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

Contrast with white, large text3.96:1WCAG large text: AA

Contrast with black, large text5.31:1WCAG large text: AAA

Named colours

Chocolate · ΔE 8.1 Peru · ΔE 13.2 Sienna · ΔE 20.2 Saddle brown · ΔE 20.6 Coral · ΔE 21.3 Sandy brown · ΔE 22.6

Nearest named CSS colourChocolate (#D2691E)ΔE 8.1, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F77C1

Analogous#C11F26, #C1BA1F

Triadic#1FC169, #691FC1

Split complementary#1FC1BA, #1F26C1

Tetradic#26C11F, #1F77C1, #BA1FC1

Tints, shades & saturation

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

Lighter +40%#F4D3B8

Lighter +30%#EDB88C

Lighter +20%#E69D60

Lighter +10%#DE8235

Darker −10%#955118

Darker −20%#693911

Darker −30%#3D210A

Darker −40%#110903

More saturated +25%#DD6703

Less saturated −25%#A56B3B

Channel breakdown

R193

G105

B31

Red193 (75.7%)

Green105 (41.2%)

Blue31 (12.2%)

Hue27.41°

Saturation (HSL)72.32%

Lightness43.92%

Dominant channelRed

Hex per channelR C1 · G 69 · B 1F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C1691F (chemical formula)

Formula
20,329.599 g/mol
1692 atoms

C1691F has a molar mass of 20,329.599 g/mol, made up of 1692 atoms across 2 elements: 1691 × C, 1 × F.

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Molar mass

Molar mass20,329.599 g/mol

Total atoms per molecule1692

Distinct elements2

Mass of one molecule3.3758093 × 10^-20 g

Molecules per gram2.9622526 × 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

C99.9%

F0.1%

Carbon (C × 1691)20,310.601 g/mol, 99.907%

Fluorine (F)18.998 g/mol, 0.093%

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