Recognised as Colour

#BC431C

#BC431C
Red
Dark
Nearest: Firebrick

#BC431C is a red with RGB values 188, 67, 28 and HSL 15°, 74%, 42%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#BC431C#BC431C

HEX#BC431C

RGBrgb(188, 67, 28)

RGB (0–1)0.7373, 0.2627, 0.1098

RGB percentages73.7%, 26.3%, 11%

HSLhsl(14.6, 74.1%, 42.4%)

HSV / HSBhsv(14.6, 85.1%, 73.7%)

CMYK0%, 64.4%, 85.1%, 26.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,337,948

CSS custom property--colour: #BC431C;

Brightness & contrast

Relative luminance0.1479WCAG 2.x, 0 is black and 1 is white

Perceived brightness115.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.31:1

Contrast with white5.31:1WCAG normal text: AA

Contrast with black3.96:1WCAG normal text: Fail

Greyscale equivalent#5A5A5A

Inverted#43BCE3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#665A15no red cones; affects about 1% of men; ΔE 51.5 from the original

Deuteranopia#847515no green cones; the most common form, about 1% of men; ΔE 51.7 from the original

Tritanopia#CF203Cno blue cones; rare, and affects men and women equally; ΔE 24.8 from the original

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

Contrast with white, large text5.31:1WCAG large text: AAA

Contrast with black, large text3.96:1WCAG large text: AA

Named colours

Firebrick · ΔE 14.5 Chocolate · ΔE 17.4 Brown · ΔE 18.5 Dark red · ΔE 18.7 Tomato · ΔE 20.1 Sienna · ΔE 21.1

Nearest named CSS colourFirebrick (#B22222)ΔE 14.46, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1C95BC

Analogous#BC1C45, #BC931C

Triadic#1CBC43, #431CBC

Split complementary#1CBC93, #1C45BC

Tetradic#45BC1C, #1C95BC, #931CBC

Tints, shades & saturation

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

Lighter +40%#F3C1B1

Lighter +30%#ED9E84

Lighter +20%#E67B58

Lighter +10%#E0572C

Darker −10%#903315

Darker −20%#63230F

Darker −30%#371408

Darker −40%#0A0402

More saturated +25%#D73501

Less saturated −25%#A15137

Channel breakdown

R188

G67

B28

Red188 (73.7%)

Green67 (26.3%)

Blue28 (11%)

Hue14.63°

Saturation (HSL)74.07%

Lightness42.35%

Dominant channelRed

Hex per channelR BC · G 43 · B 1C

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Harmonies

Lighter and darker

Similar named colours

Also reads as

BC431C (chemical formula)

Formula
5,199.562 g/mol
433 atoms

BC431C has a molar mass of 5,199.562 g/mol, made up of 433 atoms across 2 elements: 1 × B, 432 × C.

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Molar mass

Molar mass5,199.562 g/mol

Total atoms per molecule433

Distinct elements2

Mass of one molecule8.6340758 × 10^-21 g

Molecules per gram1.1582015 × 10^20

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

B0.2%

C99.8%

Boron (B)10.81 g/mol, 0.208%

Carbon (C × 432)5,188.752 g/mol, 99.792%

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