Recognised as Colour

#B28009

#B28009
Orange
Dark
Nearest: Dark goldenrod

#B28009 is a orange with RGB values 178, 128, 9 and HSL 42°, 90%, 37%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#B28009#B28009

HEX#B28009

RGBrgb(178, 128, 9)

RGB (0–1)0.698, 0.502, 0.0353

RGB percentages69.8%, 50.2%, 3.5%

HSLhsl(42.2, 90.4%, 36.7%)

HSV / HSBhsv(42.2, 94.9%, 69.8%)

CMYK0%, 28.1%, 94.9%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,698,185

CSS custom property--colour: #B28009;

Brightness & contrast

Relative luminance0.24923WCAG 2.x, 0 is black and 1 is white

Perceived brightness138.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.98:1

Contrast with white3.51:1WCAG normal text: Fail

Contrast with black5.98:1WCAG normal text: AA

Greyscale equivalent#828282

Inverted#4D7FF6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#948100no red cones; affects about 1% of men; ΔE 15 from the original

Deuteranopia#9F8E13no green cones; the most common form, about 1% of men; ΔE 16.4 from the original

Tritanopia#C2716Dno blue cones; rare, and affects men and women equally; ΔE 49.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.51:1WCAG large text: AA

Contrast with black, large text5.98:1WCAG large text: AAA

Named colours

Dark goldenrod · ΔE 2.8 Goldenrod · ΔE 15.9 Peru · ΔE 17.8 Olive · ΔE 24.3 Sandy brown · ΔE 25.5 Chocolate · ΔE 27

Nearest named CSS colourDark goldenrod (#B8860B)ΔE 2.8, a close match

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#093BB2

Analogous#B22B09, #8FB209

Triadic#09B280, #8009B2

Split complementary#098FB2, #2C09B2

Tetradic#09B22C, #093BB2, #B2098F

Tints, shades & saturation

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

Lighter +40%#F9D98E

Lighter +30%#F7C95D

Lighter +20%#F4B92D

Lighter +10%#E3A30B

Darker −10%#815D07

Darker −20%#513A04

Darker −30%#201702

Darker −40%#000000

More saturated +25%#BB8400

Less saturated −25%#9B7620

Channel breakdown

R178

G128

Red178 (69.8%)

Green128 (50.2%)

Blue9 (3.5%)

Hue42.25°

Saturation (HSL)90.37%

Lightness36.67%

Dominant channelRed

Hex per channelR B2 · G 80 · B 09

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B28009 (chemical formula)

Formula
302,777.29 g/mol
28009 atoms

B28009 has a molar mass of 302,777.29 g/mol, made up of 28009 atoms across 1 element: 28009 × B.

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Molar mass

Molar mass302,777.29 g/mol

Total atoms per molecule28009

Distinct elements1

Mass of one molecule5.0277352 × 10^-19 g

Molecules per gram1.9889671 × 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

B100%

Boron (B × 28009)302,777.29 g/mol, 100%

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Elements in this formula

Boron

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