Recognised as Colour

#BB5B23

#BB5B23
Orange
Dark
Nearest: Chocolate

#BB5B23 is a orange with RGB values 187, 91, 35 and HSL 22°, 68%, 44%. It is a dark colour, so black text on it reaches 4.6:1 contrast (AA for normal text). The nearest named colour is Chocolate.

Colour values

#BB5B23#BB5B23

HEX#BB5B23

RGBrgb(187, 91, 35)

RGB (0–1)0.7333, 0.3569, 0.1373

RGB percentages73.3%, 35.7%, 13.7%

HSLhsl(22.1, 68.5%, 43.5%)

HSV / HSBhsv(22.1, 81.3%, 73.3%)

CMYK0%, 51.3%, 81.3%, 26.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,278,563

CSS custom property--colour: #BB5B23;

Brightness & contrast

Relative luminance0.18168WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.63:1

Contrast with white4.53:1WCAG normal text: AA

Contrast with black4.63:1WCAG normal text: AA

Greyscale equivalent#6B6B6B

Inverted#44A4DC

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#76691Bno red cones; affects about 1% of men; ΔE 39.9 from the original

Deuteranopia#8E7E21no green cones; the most common form, about 1% of men; ΔE 39.7 from the original

Tritanopia#CD4650no blue cones; rare, and affects men and women equally; ΔE 30.4 from the original

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

Contrast with white, large text4.53:1WCAG large text: AAA

Contrast with black, large text4.63:1WCAG large text: AAA

Named colours

Chocolate · ΔE 11 Sienna · ΔE 14.8 Saddle brown · ΔE 16.5 Peru · ΔE 18.3 Coral · ΔE 20.3 Firebrick · ΔE 25.4

Nearest named CSS colourChocolate (#D2691E)ΔE 11.01, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2383BB

Analogous#BB2337, #BBA723

Triadic#23BB5B, #5B23BB

Split complementary#23BBA7, #2337BB

Tetradic#37BB23, #2383BB, #A723BB

Tints, shades & saturation

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

Lighter +40%#F2CDB8

Lighter +30%#EAAF8D

Lighter +20%#E29162

Lighter +10%#DA7337

Darker −10%#90461B

Darker −20%#653113

Darker −30%#3A1C0B

Darker −40%#0F0703

More saturated +25%#D75407

Less saturated −25%#9F623F

Channel breakdown

R187

G91

B35

Red187 (73.3%)

Green91 (35.7%)

Blue35 (13.7%)

Hue22.11°

Saturation (HSL)68.47%

Lightness43.53%

Dominant channelRed

Hex per channelR BB · G 5B · B 23

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BB5B23 (chemical formula)

Formula
313.49 g/mol
29 atoms

BB5B23 has a molar mass of 313.49 g/mol, made up of 29 atoms across 1 element: 29 × B.

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Molar mass

Molar mass313.49 g/mol

Total atoms per molecule29

Distinct elements1

Mass of one molecule5.2056239 × 10^-22 g

Molecules per gram1.9209993 × 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

B100%

Boron (B × 29)313.49 g/mol, 100%

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Elements in this formula

Boron

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