Recognised as Colour

#BB841F

#BB841F
Orange
Dark
Nearest: Dark goldenrod

#BB841F is a orange with RGB values 187, 132, 31 and HSL 39°, 72%, 43%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#BB841F#BB841F

HEX#BB841F

RGBrgb(187, 132, 31)

RGB (0–1)0.7333, 0.5176, 0.1216

RGB percentages73.3%, 51.8%, 12.2%

HSLhsl(38.8, 71.6%, 42.7%)

HSV / HSBhsv(38.8, 83.4%, 73.3%)

CMYK0%, 29.4%, 83.4%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,289,055

CSS custom property--colour: #BB841F;

Brightness & contrast

Relative luminance0.27166WCAG 2.x, 0 is black and 1 is white

Perceived brightness144.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.43:1

Contrast with white3.26:1WCAG normal text: Fail

Contrast with black6.43:1WCAG normal text: AA

Greyscale equivalent#888888

Inverted#447BE0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#988605no red cones; affects about 1% of men; ΔE 18.1 from the original

Deuteranopia#A59424no green cones; the most common form, about 1% of men; ΔE 18.6 from the original

Tritanopia#CC7571no blue cones; rare, and affects men and women equally; ΔE 45.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.26:1WCAG large text: AA

Contrast with black, large text6.43:1WCAG large text: AAA

Named colours

Dark goldenrod · ΔE 5.7 Peru · ΔE 13.4 Goldenrod · ΔE 16.5 Sandy brown · ΔE 21.2 Chocolate · ΔE 24.5 Olive · ΔE 26.7

Nearest named CSS colourDark goldenrod (#B8860B)ΔE 5.67, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1F56BB

Analogous#BB361F, #A4BB1F

Triadic#1FBB84, #841FBB

Split complementary#1FA4BB, #361FBB

Tetradic#1FBB36, #1F56BB, #BB1FA4

Tints, shades & saturation

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

Lighter +40%#F2DCB4

Lighter +30%#EBC888

Lighter +20%#E4B45C

Lighter +10%#DDA030

Darker −10%#8F6518

Darker −20%#644610

Darker −30%#382709

Darker −40%#0C0802

More saturated +25%#D68C04

Less saturated −25%#A07C3A

Channel breakdown

R187

G132

B31

Red187 (73.3%)

Green132 (51.8%)

Blue31 (12.2%)

Hue38.85°

Saturation (HSL)71.56%

Lightness42.75%

Dominant channelRed

Hex per channelR BB · G 84 · B 1F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB841F (chemical formula)

Formula
9,121.018 g/mol
843 atoms

BB841F has a molar mass of 9,121.018 g/mol, made up of 843 atoms across 2 elements: 842 × B, 1 × F.

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Molar mass

Molar mass9,121.018 g/mol

Total atoms per molecule843

Distinct elements2

Mass of one molecule1.5145807 × 10^-20 g

Molecules per gram6.6024875 × 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

B99.8%

F0.2%

Boron (B × 842)9,102.02 g/mol, 99.792%

Fluorine (F)18.998 g/mol, 0.208%

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