Recognised as Colour
#BB1955
- #BB1955
- Red
- Dark
- Nearest: Brown
#BB1955 is a red with RGB values 187, 25, 85 and HSL 338°, 76%, 42%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BB1955#BB1955
HEX#BB1955
RGBrgb(187, 25, 85)
RGB (0–1)0.7333, 0.098, 0.3333
RGB percentages73.3%, 9.8%, 33.3%
HSLhsl(337.8, 76.4%, 41.6%)
HSV / HSBhsv(337.8, 86.6%, 73.3%)
CMYK0%, 86.6%, 54.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,261,717
CSS custom property--colour: #BB1955;
Brightness & contrast
Relative luminance0.11916WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.21:1
Contrast with white6.21:1WCAG normal text: AA
Contrast with black3.38:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#44E6AA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.21:1WCAG large text: AAA
Contrast with black, large text3.38:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#19BB7F
Analogous#BB19A6, #BB2E19
Triadic#55BB19, #1955BB
Split complementary#19BB2E, #19A6BB
Tetradic#A6BB19, #19BB7F, #2E19BB
Tints, shades & saturation
Channel breakdown
R187
G25
B85
Red187 (73.3%)
Green25 (9.8%)
Blue85 (33.3%)
Hue337.78°
Saturation (HSL)76.42%
Lightness41.57%
Dominant channelRed
Hex per channelR BB · G 19 · B 55
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Harmonies
Similar named colours
Also reads as
BB1955 (chemical formula)
- Formula
- 21,144.36 g/mol
- 1956 atoms
BB1955 has a molar mass of 21,144.36 g/mol, made up of 1956 atoms across 1 element: 1956 × B.
Molar mass
Molar mass21,144.36 g/mol
Total atoms per molecule1956
Distinct elements1
Mass of one molecule3.5111036 × 10^-20 g
Molecules per gram2.8481074 × 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 × 1956)21,144.36 g/mol, 100%
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