Recognised as Colour

#B58640

#B58640
Orange
Dark
Nearest: Peru

#B58640 is a orange with RGB values 181, 134, 64 and HSL 36°, 48%, 48%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Peru.

Colour values

#B58640#B58640

HEX#B58640

RGBrgb(181, 134, 64)

RGB (0–1)0.7098, 0.5255, 0.251

RGB percentages71%, 52.5%, 25.1%

HSLhsl(35.9, 47.8%, 48%)

HSV / HSBhsv(35.9, 64.6%, 71%)

CMYK0%, 26%, 64.6%, 29%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,896,384

CSS custom property--colour: #B58640;

Brightness & contrast

Relative luminance0.27244WCAG 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 6.45:1

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

Contrast with black6.45:1WCAG normal text: AA

Greyscale equivalent#8B8B8B

Inverted#4A79BF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#978839no red cones; affects about 1% of men; ΔE 15.2 from the original

Deuteranopia#A29342no green cones; the most common form, about 1% of men; ΔE 15.5 from the original

Tritanopia#C47A76no blue cones; rare, and affects men and women equally; ΔE 34.4 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 text6.45:1WCAG large text: AAA

Named colours

Peru · ΔE 11.9 Dark goldenrod · ΔE 18.9 Sandy brown · ΔE 19.5 Burlywood · ΔE 22.8 Dark khaki · ΔE 24.4 Tan · ΔE 25.6

Nearest named CSS colourPeru (#CD853F)ΔE 11.87, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#406FB5

Analogous#B54C40, #A9B540

Triadic#40B586, #8640B5

Split complementary#40AAB5, #4C40B5

Tetradic#40B54C, #406FB5, #B540A9

Tints, shades & saturation

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

Lighter +40%#EFE3D2

Lighter +30%#E2CCAC

Lighter +20%#D4B587

Lighter +10%#C79E61

Darker −10%#8F6A33

Darker −20%#6A4E25

Darker −30%#443218

Darker −40%#1E160B

More saturated +25%#D48C21

Less saturated −25%#96805F

Channel breakdown

R181

G134

B64

Red181 (71%)

Green134 (52.5%)

Blue64 (25.1%)

Hue35.9°

Saturation (HSL)47.76%

Lightness48.04%

Dominant channelRed

Hex per channelR B5 · G 86 · B 40

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B58640 (chemical formula)

Formula
633,898.4 g/mol
58640 atoms

B58640 has a molar mass of 633,898.4 g/mol, made up of 58640 atoms across 1 element: 58640 × B.

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Molar mass

Molar mass633,898.4 g/mol

Total atoms per molecule58640

Distinct elements1

Mass of one molecule1.0526131 × 10^-18 g

Molecules per gram9.5001672 × 10^17

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 × 58640)633,898.4 g/mol, 100%

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Elements in this formula

Boron

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