Recognised as Colour

#B20906

#B20906
Red
Dark
Nearest: Firebrick

#B20906 is a red with RGB values 178, 9, 6 and HSL 1°, 93%, 36%. It is a dark colour, so white text on it reaches 7.2:1 contrast (AAA for normal text). The nearest named colour is Firebrick.

Colour values

#B20906#B20906

HEX#B20906

RGBrgb(178, 9, 6)

RGB (0–1)0.698, 0.0353, 0.0235

RGB percentages69.8%, 3.5%, 2.4%

HSLhsl(1, 93.5%, 36.1%)

HSV / HSBhsv(1, 96.6%, 69.8%)

CMYK0%, 94.9%, 96.6%, 30.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,667,718

CSS custom property--colour: #B20906;

Brightness & contrast

Relative luminance0.09674WCAG 2.x, 0 is black and 1 is white

Perceived brightness97.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.16:1

Contrast with white7.16:1WCAG normal text: AAA

Contrast with black2.93:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#4DF6F9

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4B4100no red cones; affects about 1% of men; ΔE 65 from the original

Deuteranopia#716400no green cones; the most common form, about 1% of men; ΔE 64.9 from the original

Tritanopia#C5000Eno blue cones; rare, and affects men and women equally; ΔE 7.2 from the original

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

Contrast with white, large text7.16:1WCAG large text: AAA

Contrast with black, large text2.93:1WCAG large text: Fail

Named colours

Firebrick · ΔE 12.3 Dark red · ΔE 15.1 Maroon · ΔE 20.1 Crimson · ΔE 21.2 Brown · ΔE 21.3 Tomato · ΔE 25.2

Nearest named CSS colourFirebrick (#B22222)ΔE 12.29, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#06AFB2

Analogous#B20659, #B25F06

Triadic#06B209, #0906B2

Split complementary#06B25F, #0659B2

Tetradic#59B206, #06AFB2, #5F06B2

Tints, shades & saturation

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

Lighter +40%#FB8B89

Lighter +30%#F95A58

Lighter +20%#F82A26

Lighter +10%#E30B08

Darker −10%#810704

Darker −20%#4F0403

Darker −30%#1E0201

Darker −40%#000000

More saturated +25%#B80300

Less saturated −25%#9B1F1D

Channel breakdown

R178

Red178 (69.8%)

Green9 (3.5%)

Blue6 (2.4%)

Hue1.05°

Saturation (HSL)93.48%

Lightness36.08%

Dominant channelRed

Hex per channelR B2 · G 09 · B 06

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B20906 (chemical formula)

Formula
225,993.86 g/mol
20906 atoms

B20906 has a molar mass of 225,993.86 g/mol, made up of 20906 atoms across 1 element: 20906 × B.

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Molar mass

Molar mass225,993.86 g/mol

Total atoms per molecule20906

Distinct elements1

Mass of one molecule3.7527163 × 10^-19 g

Molecules per gram2.6647364 × 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 × 20906)225,993.86 g/mol, 100%

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Elements in this formula

Boron

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