Recognised as Colour

#CB8500

#CB8500
Orange
Dark
Nearest: Dark goldenrod

#CB8500 is a orange with RGB values 203, 133, 0 and HSL 39°, 100%, 40%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.

Colour values

#CB8500#CB8500

HEX#CB8500

RGBrgb(203, 133, 0)

RGB (0–1)0.7961, 0.5216, 0

RGB percentages79.6%, 52.2%, 0%

HSLhsl(39.3, 100%, 39.8%)

HSV / HSBhsv(39.3, 100%, 79.6%)

CMYK0%, 34.5%, 100%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,337,856

CSS custom property--colour: #CB8500;

Brightness & contrast

Relative luminance0.29472WCAG 2.x, 0 is black and 1 is white

Perceived brightness150.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.89:1

Contrast with white3.05:1WCAG normal text: Fail

Contrast with black6.89:1WCAG normal text: AA

Greyscale equivalent#8A8A8A

Inverted#347AFF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#9D8A00no red cones; affects about 1% of men; ΔE 24.4 from the original

Deuteranopia#AE9A0Ano green cones; the most common form, about 1% of men; ΔE 24.5 from the original

Tritanopia#DE7371no blue cones; rare, and affects men and women equally; ΔE 51.8 from the original

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

Contrast with white, large text3.05:1WCAG large text: AA

Contrast with black, large text6.89:1WCAG large text: AAA

Named colours

Dark goldenrod · ΔE 10 Goldenrod · ΔE 14.2 Orange · ΔE 19 Peru · ΔE 19.2 Chocolate · ΔE 21.6 Dark orange · ΔE 21.7

Nearest named CSS colourDark goldenrod (#B8860B)ΔE 10, clearly different but related

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#0046CB

Analogous#CB2000, #ABCB00

Triadic#00CB85, #8500CB

Split complementary#00ABCB, #2000CB

Tetradic#00CB20, #0046CB, #CB00AB

Tints, shades & saturation

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

Lighter +40%#FFDB98

Lighter +30%#FFCA65

Lighter +20%#FFB832

Lighter +10%#FEA600

Darker −10%#986400

Darker −20%#654200

Darker −30%#322100

Darker −40%#000000

More saturated +25%#CB8500

Less saturated −25%#B27D19

Channel breakdown

R203

G133

Red203 (79.6%)

Green133 (52.2%)

Blue0 (0%)

Hue39.31°

Saturation (HSL)100%

Lightness39.8%

Dominant channelRed

Hex per channelR CB · G 85 · B 00

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CB8500 (chemical formula)

Formula
91,897.011 g/mol
8501 atoms

CB8500 has a molar mass of 91,897.011 g/mol, made up of 8501 atoms across 2 elements: 1 × C, 8500 × B.

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Molar mass

Molar mass91,897.011 g/mol

Total atoms per molecule8501

Distinct elements2

Mass of one molecule1.5259858 × 10^-19 g

Molecules per gram6.5531411 × 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

C0%

B100%

Carbon (C)12.011 g/mol, 0.013%

Boron (B × 8500)91,885 g/mol, 99.987%

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