Recognised as Colour
#BB3934
- #BB3934
- Red
- Dark
- Nearest: Brown
#BB3934 is a red with RGB values 187, 57, 52 and HSL 2°, 56%, 47%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BB3934#BB3934
HEX#BB3934
RGBrgb(187, 57, 52)
RGB (0–1)0.7333, 0.2235, 0.2039
RGB percentages73.3%, 22.4%, 20.4%
HSLhsl(2.2, 56.5%, 46.9%)
HSV / HSBhsv(2.2, 72.2%, 73.3%)
CMYK0%, 69.5%, 72.2%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,269,876
CSS custom property--colour: #BB3934;
Brightness & contrast
Relative luminance0.13739WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.6:1
Contrast with white5.6:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#545454
Inverted#44C6CB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.6:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#34B6BB
Analogous#BB3472, #BB7D34
Triadic#34BB39, #3934BB
Split complementary#34BB7C, #3473BB
Tetradic#72BB34, #34B6BB, #7C34BB
Tints, shades & saturation
Channel breakdown
R187
G57
B52
Red187 (73.3%)
Green57 (22.4%)
Blue52 (20.4%)
Hue2.22°
Saturation (HSL)56.49%
Lightness46.86%
Dominant channelRed
Hex per channelR BB · G 39 · B 34
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Also reads as
BB3934 (chemical formula)
- Formula
- 42,537.35 g/mol
- 3935 atoms
BB3934 has a molar mass of 42,537.35 g/mol, made up of 3935 atoms across 1 element: 3935 × B.
Molar mass
Molar mass42,537.35 g/mol
Total atoms per molecule3935
Distinct elements1
Mass of one molecule7.0634931 × 10^-20 g
Molecules per gram1.4157301 × 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 × 3935)42,537.35 g/mol, 100%
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