Recognised as Colour
#BB3543
- #BB3543
- Red
- Dark
- Nearest: Brown
#BB3543 is a red with RGB values 187, 53, 67 and HSL 354°, 56%, 47%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BB3543#BB3543
HEX#BB3543
RGBrgb(187, 53, 67)
RGB (0–1)0.7333, 0.2078, 0.2627
RGB percentages73.3%, 20.8%, 26.3%
HSLhsl(353.7, 55.8%, 47.1%)
HSV / HSBhsv(353.7, 71.7%, 73.3%)
CMYK0%, 71.7%, 64.2%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,268,867
CSS custom property--colour: #BB3543;
Brightness & contrast
Relative luminance0.13516WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.67:1
Contrast with white5.67:1WCAG normal text: AA
Contrast with black3.7:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#44CABC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.67:1WCAG large text: AAA
Contrast with black, large text3.7:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#35BBAD
Analogous#BB3586, #BB6A35
Triadic#43BB35, #3543BB
Split complementary#35BB6A, #3586BB
Tetradic#86BB35, #35BBAD, #6A35BB
Tints, shades & saturation
Channel breakdown
R187
G53
B67
Red187 (73.3%)
Green53 (20.8%)
Blue67 (26.3%)
Hue353.73°
Saturation (HSL)55.83%
Lightness47.06%
Dominant channelRed
Hex per channelR BB · G 35 · B 43
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Also reads as
BB3543 (chemical formula)
- Formula
- 38,310.64 g/mol
- 3544 atoms
BB3543 has a molar mass of 38,310.64 g/mol, made up of 3544 atoms across 1 element: 3544 × B.
Molar mass
Molar mass38,310.64 g/mol
Total atoms per molecule3544
Distinct elements1
Mass of one molecule6.3616314 × 10^-20 g
Molecules per gram1.5719238 × 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
B100%
Boron (B × 3544)38,310.64 g/mol, 100%
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