Recognised as Colour
#BC1805
- #BC1805
- Red
- Dark
- Nearest: Firebrick
#BC1805 is a red with RGB values 188, 24, 5 and HSL 6°, 95%, 38%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#BC1805#BC1805
HEX#BC1805
RGBrgb(188, 24, 5)
RGB (0–1)0.7373, 0.0941, 0.0196
RGB percentages73.7%, 9.4%, 2%
HSLhsl(6.2, 94.8%, 37.8%)
HSV / HSBhsv(6.2, 97.3%, 73.7%)
CMYK0%, 87.2%, 97.3%, 26.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,326,917
CSS custom property--colour: #BC1805;
Brightness & contrast
Relative luminance0.11356WCAG 2.x, 0 is black and 1 is white
Perceived brightness104.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.42:1
Contrast with white6.42:1WCAG normal text: AA
Contrast with black3.27:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#43E7FA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.42:1WCAG large text: AAA
Contrast with black, large text3.27:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#05A9BC
Analogous#BC054E, #BC7405
Triadic#05BC18, #1805BC
Split complementary#05BC74, #054DBC
Tetradic#4DBC05, #05A9BC, #7405BC
Tints, shades & saturation
Channel breakdown
R188
G24
B5
Red188 (73.7%)
Green24 (9.4%)
Blue5 (2%)
Hue6.23°
Saturation (HSL)94.82%
Lightness37.84%
Dominant channelRed
Hex per channelR BC · G 18 · B 05
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Also reads as
BC1805 (chemical formula)
- Formula
- 21,690.665 g/mol
- 1806 atoms
BC1805 has a molar mass of 21,690.665 g/mol, made up of 1806 atoms across 2 elements: 1 × B, 1805 × C.
Molar mass
Molar mass21,690.665 g/mol
Total atoms per molecule1806
Distinct elements2
Mass of one molecule3.6018197 × 10^-20 g
Molecules per gram2.7763744 × 10^19
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%
C100%
Boron (B)10.81 g/mol, 0.05%
Carbon (C × 1805)21,679.855 g/mol, 99.95%
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