Recognised as Colour

#B44730

#B44730
Red
Dark
Nearest: Brown

#B44730 is a red with RGB values 180, 71, 48 and HSL 10°, 58%, 45%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Brown.

Colour values

#B44730#B44730

HEX#B44730

RGBrgb(180, 71, 48)

RGB (0–1)0.7059, 0.2784, 0.1882

RGB percentages70.6%, 27.8%, 18.8%

HSLhsl(10.5, 57.9%, 44.7%)

HSV / HSBhsv(10.5, 73.3%, 70.6%)

CMYK0%, 60.6%, 73.3%, 29.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,814,704

CSS custom property--colour: #B44730;

Brightness & contrast

Relative luminance0.14423WCAG 2.x, 0 is black and 1 is white

Perceived brightness113.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.41:1

Contrast with white5.41:1WCAG normal text: AA

Contrast with black3.88:1WCAG normal text: Fail

Greyscale equivalent#5D5D5D

Inverted#4BB8CF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#655B2Dno red cones; affects about 1% of men; ΔE 46.8 from the original

Deuteranopia#80732Dno green cones; the most common form, about 1% of men; ΔE 47.2 from the original

Tritanopia#C62E42no blue cones; rare, and affects men and women equally; ΔE 19.4 from the original

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

Contrast with white, large text5.41:1WCAG large text: AAA

Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Brown · ΔE 11.4 Sienna · ΔE 13.7 Firebrick · ΔE 14.3 Indian red · ΔE 16.5 Saddle brown · ΔE 18.7 Dark red · ΔE 19.3

Nearest named CSS colourBrown (#A52A2A)ΔE 11.37, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#309DB4

Analogous#B4305B, #B48930

Triadic#30B447, #4730B4

Split complementary#30B489, #305BB4

Tetradic#5BB430, #309DB4, #8930B4

Tints, shades & saturation

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

Lighter +40%#EFC9C1

Lighter +30%#E4A699

Lighter +20%#D98371

Lighter +10%#CE6049

Darker −10%#8C3725

Darker −20%#63271B

Darker −30%#3B1710

Darker −40%#130705

More saturated +25%#D13414

Less saturated −25%#985A4D

Channel breakdown

R180

G71

B48

Red180 (70.6%)

Green71 (27.8%)

Blue48 (18.8%)

Hue10.45°

Saturation (HSL)57.89%

Lightness44.71%

Dominant channelRed

Hex per channelR B4 · G 47 · B 30

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B44730 (chemical formula)

Formula
483,531.3 g/mol
44730 atoms

B44730 has a molar mass of 483,531.3 g/mol, made up of 44730 atoms across 1 element: 44730 × B.

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Molar mass

Molar mass483,531.3 g/mol

Total atoms per molecule44730

Distinct elements1

Mass of one molecule8.0292261 × 10^-19 g

Molecules per gram1.24545 × 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 × 44730)483,531.3 g/mol, 100%

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Elements in this formula

Boron

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