Probably not though there are assuredly some that are or have been.
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∙ 11y agoNo, blue-black dye is typically a mixture of different compounds that collectively produce the desired color. In some cases, it may contain multiple compounds that work synergistically to create the final hue.
Sloe berries are typically dark blue or purple in color when ripe.
Some opals are known as black opals, this is when they have a mainly black colour. In general a black opal is very dark blue and has flecks of other colours within
in a variegated leaf only the green areas of the leaf turns blue black in colour when tested for starch what is the best way to explan that
The required time for the disappearance of blue-black color in test tubeswill.
The colour for a plant cell's starch grains is typically blue or black when stained with iodine solution. This is due to the formation of a complex between iodine and starch, which results in the characteristic colour change.
Blue is a primary colour. Black is the absence of colour.
Black or Blue-ish Black
Midnight Black Blue
gold,sliver,pink,blue,white,green,yellow really every single colour can go!
Navy, depending on how much blue or black you add.
Black or Dark Blue
Mix a royal blue with a bit of black to make navy.
No, it is purple in colour.
No, they are purple in colour.
yellow blue and black
black blue
yellow