Recognised as Colour

#B15F19

#B15F19
Orange
Dark
Nearest: Chocolate

#B15F19 is a orange with RGB values 177, 95, 25 and HSL 28°, 75%, 40%. It is a dark colour, so white text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#B15F19#B15F19

HEX#B15F19

RGBrgb(177, 95, 25)

RGB (0–1)0.6941, 0.3725, 0.098

RGB percentages69.4%, 37.3%, 9.8%

HSLhsl(27.6, 75.2%, 39.6%)

HSV / HSBhsv(27.6, 85.9%, 69.4%)

CMYK0%, 46.3%, 85.9%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,624,217

CSS custom property--colour: #B15F19;

Brightness & contrast

Relative luminance0.17602WCAG 2.x, 0 is black and 1 is white

Perceived brightness121.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.65:1

Contrast with white4.65:1WCAG normal text: AA

Contrast with black4.52:1WCAG normal text: AA

Greyscale equivalent#6B6B6B

Inverted#4EA0E6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#77690Ano red cones; affects about 1% of men; ΔE 33.2 from the original

Deuteranopia#8B7C18no green cones; the most common form, about 1% of men; ΔE 33.8 from the original

Tritanopia#C24D52no blue cones; rare, and affects men and women equally; ΔE 34.7 from the original

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

Contrast with white, large text4.65:1WCAG large text: AAA

Contrast with black, large text4.52:1WCAG large text: AAA

Named colours

Chocolate · ΔE 12.5 Peru · ΔE 14.9 Saddle brown · ΔE 15.3 Sienna · ΔE 16 Dark goldenrod · ΔE 24.5 Coral · ΔE 25

Nearest named CSS colourChocolate (#D2691E)ΔE 12.46, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#196BB1

Analogous#B1191F, #B1AB19

Triadic#19B15F, #5F19B1

Split complementary#19B1AB, #191FB1

Tetradic#1FB119, #196BB1, #AB19B1

Tints, shades & saturation

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

Lighter +40%#F2C8A4

Lighter +30%#ECAD77

Lighter +20%#E6924A

Lighter +10%#DE771F

Darker −10%#844713

Darker −20%#582F0C

Darker −30%#2B1706

Darker −40%#000000

More saturated +25%#CA5D00

Less saturated −25%#986132

Channel breakdown

R177

G95

B25

Red177 (69.4%)

Green95 (37.3%)

Blue25 (9.8%)

Hue27.63°

Saturation (HSL)75.25%

Lightness39.61%

Dominant channelRed

Hex per channelR B1 · G 5F · B 19

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B15F19 (chemical formula)

Formula
523.112 g/mol
34 atoms

B15F19 has a molar mass of 523.112 g/mol, made up of 34 atoms across 2 elements: 15 × B, 19 × F.

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Molar mass

Molar mass523.112 g/mol

Total atoms per molecule34

Distinct elements2

Mass of one molecule8.6864791 × 10^-22 g

Molecules per gram1.1512144 × 10^21

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

B31%

F69%

Boron (B × 15)162.15 g/mol, 30.997%

Fluorine (F × 19)360.962 g/mol, 69.003%

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Elements in this formula

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