Recognised as Colour

#B30339

#B30339
Red
Dark
Nearest: Brown

#B30339 is a red with RGB values 179, 3, 57 and HSL 342°, 97%, 36%. It is a dark colour, so white text on it reaches 7:1 contrast (AAA for normal text). The nearest named colour is Brown.

Colour values

#B30339#B30339

HEX#B30339

RGBrgb(179, 3, 57)

RGB (0–1)0.702, 0.0118, 0.2235

RGB percentages70.2%, 1.2%, 22.4%

HSLhsl(341.6, 96.7%, 35.7%)

HSV / HSBhsv(341.6, 98.3%, 70.2%)

CMYK0%, 98.3%, 68.2%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer11,731,769

CSS custom property--colour: #B30339;

Brightness & contrast

Relative luminance0.09944WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.03:1

Contrast with white7.03:1WCAG normal text: AAA

Contrast with black2.99:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#4CFCC6

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#464339no red cones; affects about 1% of men; ΔE 65.9 from the original

Deuteranopia#6E6534no green cones; the most common form, about 1% of men; ΔE 66.7 from the original

Tritanopia#C50021no blue cones; rare, and affects men and women equally; ΔE 20.1 from the original

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

Contrast with white, large text7.03:1WCAG large text: AAA

Contrast with black, large text2.99:1WCAG large text: Fail

Named colours

Brown · ΔE 15.3 Firebrick · ΔE 16.9 Crimson · ΔE 17 Indian red · ΔE 23.6 Dark red · ΔE 24.3 Maroon · ΔE 24.7

Nearest named CSS colourBrown (#A52A2A)ΔE 15.34, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#03B37D

Analogous#B30391, #B32503

Triadic#39B303, #0339B3

Split complementary#03B325, #0391B3

Tetradic#91B303, #03B37D, #2503B3

Tints, shades & saturation

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

Lighter +40%#FD85AA

Lighter +30%#FC5387

Lighter +20%#FB2164

Lighter +10%#E50449

Darker −10%#810229

Darker −20%#4F0119

Darker −30%#1D0009

Darker −40%#000000

More saturated +25%#B60038

Less saturated −25%#9C1A42

Channel breakdown

R179

B57

Red179 (70.2%)

Green3 (1.2%)

Blue57 (22.4%)

Hue341.59°

Saturation (HSL)96.7%

Lightness35.69%

Dominant channelRed

Hex per channelR B3 · G 03 · B 39

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Harmonies

Lighter and darker

Similar named colours

Also reads as

B30339 (chemical formula)

Formula
327,964.59 g/mol
30339 atoms

B30339 has a molar mass of 327,964.59 g/mol, made up of 30339 atoms across 1 element: 30339 × B.

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Molar mass

Molar mass327,964.59 g/mol

Total atoms per molecule30339

Distinct elements1

Mass of one molecule5.4459801 × 10^-19 g

Molecules per gram1.8362168 × 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 × 30339)327,964.59 g/mol, 100%

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Elements in this formula

Boron

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