Recognised as Colour
#BB6733
- #BB6733
- Orange
- Dark
- Nearest: Sienna
#BB6733 is a orange with RGB values 187, 103, 51 and HSL 23°, 57%, 47%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Sienna.
Colour values
#BB6733#BB6733
HEX#BB6733
RGBrgb(187, 103, 51)
RGB (0–1)0.7333, 0.4039, 0.2
RGB percentages73.3%, 40.4%, 20%
HSLhsl(22.9, 57.1%, 46.7%)
HSV / HSBhsv(22.9, 72.7%, 73.3%)
CMYK0%, 44.9%, 72.7%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,281,651
CSS custom property--colour: #BB6733;
Brightness & contrast
Relative luminance0.20504WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.1:1
Contrast with white4.12:1WCAG normal text: Fail
Contrast with black5.1:1WCAG normal text: AA
Greyscale equivalent#757575
Inverted#4498CC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.12:1WCAG large text: AA
Contrast with black, large text5.1:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3387BB
Analogous#BB3343, #BBAB33
Triadic#33BB67, #6733BB
Split complementary#33BBAB, #3343BB
Tetradic#43BB33, #3387BB, #AB33BB
Tints, shades & saturation
Channel breakdown
R187
G103
B51
Red187 (73.3%)
Green103 (40.4%)
Blue51 (20%)
Hue22.94°
Saturation (HSL)57.14%
Lightness46.67%
Dominant channelRed
Hex per channelR BB · G 67 · B 33
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Also reads as
BB6733 (chemical formula)
- Formula
- 72,794.54 g/mol
- 6734 atoms
BB6733 has a molar mass of 72,794.54 g/mol, made up of 6734 atoms across 1 element: 6734 × B.
Molar mass
Molar mass72,794.54 g/mol
Total atoms per molecule6734
Distinct elements1
Mass of one molecule1.2087818 × 10^-19 g
Molecules per gram8.2727918 × 10^18
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 × 6734)72,794.54 g/mol, 100%
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