Recognised as Colour
#BB4045
- #BB4045
- Red
- Dark
- Nearest: Brown
#BB4045 is a red with RGB values 187, 64, 69 and HSL 358°, 49%, 49%. It is a dark colour, so white text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Brown.
Colour values
#BB4045#BB4045
HEX#BB4045
RGBrgb(187, 64, 69)
RGB (0–1)0.7333, 0.251, 0.2706
RGB percentages73.3%, 25.1%, 27.1%
HSLhsl(357.6, 49%, 49.2%)
HSV / HSBhsv(357.6, 65.8%, 73.3%)
CMYK0%, 65.8%, 63.1%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,271,685
CSS custom property--colour: #BB4045;
Brightness & contrast
Relative luminance0.14661WCAG 2.x, 0 is black and 1 is white
Perceived brightness115.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.34:1
Contrast with white5.34:1WCAG normal text: AA
Contrast with black3.93:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#44BFBA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.34:1WCAG large text: AAA
Contrast with black, large text3.93:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#40BBB6
Analogous#BB4083, #BB7940
Triadic#45BB40, #4045BB
Split complementary#40BB79, #4083BB
Tetradic#83BB40, #40BBB6, #7840BB
Tints, shades & saturation
Channel breakdown
R187
G64
B69
Red187 (73.3%)
Green64 (25.1%)
Blue69 (27.1%)
Hue357.56°
Saturation (HSL)49%
Lightness49.22%
Dominant channelRed
Hex per channelR BB · G 40 · B 45
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Harmonies
Similar named colours
Also reads as
BB4045 (chemical formula)
- Formula
- 43,737.26 g/mol
- 4046 atoms
BB4045 has a molar mass of 43,737.26 g/mol, made up of 4046 atoms across 1 element: 4046 × B.
Molar mass
Molar mass43,737.26 g/mol
Total atoms per molecule4046
Distinct elements1
Mass of one molecule7.2627429 × 10^-20 g
Molecules per gram1.3768903 × 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 × 4046)43,737.26 g/mol, 100%
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