Recognised as Colour

#B15820

#B15820
Orange
Dark
Nearest: Sienna

#B15820 is a orange with RGB values 177, 88, 32 and HSL 23°, 69%, 41%. It is a dark colour, so white text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Sienna.

Colour values

#B15820#B15820

HEX#B15820

RGBrgb(177, 88, 32)

RGB (0–1)0.6941, 0.3451, 0.1255

RGB percentages69.4%, 34.5%, 12.5%

HSLhsl(23.2, 69.4%, 41%)

HSV / HSBhsv(23.2, 81.9%, 69.4%)

CMYK0%, 50.3%, 81.9%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,622,432

CSS custom property--colour: #B15820;

Brightness & contrast

Relative luminance0.16431WCAG 2.x, 0 is black and 1 is white

Perceived brightness118.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.9:1

Contrast with white4.9:1WCAG normal text: AA

Contrast with black4.29:1WCAG normal text: Fail

Greyscale equivalent#676767

Inverted#4EA7DF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#726417no red cones; affects about 1% of men; ΔE 36.5 from the original

Deuteranopia#87781Eno green cones; the most common form, about 1% of men; ΔE 37.1 from the original

Tritanopia#C2444Dno blue cones; rare, and affects men and women equally; ΔE 30.3 from the original

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

Contrast with white, large text4.9:1WCAG large text: AAA

Contrast with black, large text4.29:1WCAG large text: AA

Named colours

Sienna · ΔE 12.1 Saddle brown · ΔE 13.1 Chocolate · ΔE 13.9 Peru · ΔE 18.1 Coral · ΔE 23.5 Brown · ΔE 25.5

Nearest named CSS colourSienna (#A0522D)ΔE 12.08, a distinctly different colour

Hue familyorange

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2079B1

Analogous#B12031, #B1A020

Triadic#20B158, #5820B1

Split complementary#20B1A1, #2030B1

Tetradic#31B120, #2079B1, #A120B1

Tints, shades & saturation

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

Lighter +40%#F0C7AD

Lighter +30%#E8A982

Lighter +20%#E18C56

Lighter +10%#D96E2B

Darker −10%#864318

Darker −20%#5B2D10

Darker −30%#2F1809

Darker −40%#040201

More saturated +25%#CB5206

Less saturated −25%#975E3A

Channel breakdown

R177

G88

B32

Red177 (69.4%)

Green88 (34.5%)

Blue32 (12.5%)

Hue23.17°

Saturation (HSL)69.38%

Lightness40.98%

Dominant channelRed

Hex per channelR B1 · G 58 · B 20

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

B15820 (chemical formula)

Formula
171,014.2 g/mol
15820 atoms

B15820 has a molar mass of 171,014.2 g/mol, made up of 15820 atoms across 1 element: 15820 × B.

Open this reading on its own page →

Molar mass

Molar mass171,014.2 g/mol

Total atoms per molecule15820

Distinct elements1

Mass of one molecule2.8397576 × 10^-19 g

Molecules per gram3.5214273 × 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 × 15820)171,014.2 g/mol, 100%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Boron

Nerdulate something else

Nothing in mind? Surprise me · today’s page