Recognised as Colour
#BB8317
- #BB8317
- Orange
- Dark
- Nearest: Dark goldenrod
#BB8317 is a orange with RGB values 187, 131, 23 and HSL 40°, 78%, 41%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.
Colour values
#BB8317#BB8317
HEX#BB8317
RGBrgb(187, 131, 23)
RGB (0–1)0.7333, 0.5137, 0.0902
RGB percentages73.3%, 51.4%, 9%
HSLhsl(39.5, 78.1%, 41.2%)
HSV / HSBhsv(39.5, 87.7%, 73.3%)
CMYK0%, 29.9%, 87.7%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,288,791
CSS custom property--colour: #BB8317;
Brightness & contrast
Relative luminance0.26859WCAG 2.x, 0 is black and 1 is white
Perceived brightness143.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.37:1
Contrast with white3.3:1WCAG normal text: Fail
Contrast with black6.37:1WCAG normal text: AA
Greyscale equivalent#878787
Inverted#447CE8
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.3:1WCAG large text: AA
Contrast with black, large text6.37:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#174FBB
Analogous#BB3117, #A1BB17
Triadic#17BB83, #8317BB
Split complementary#17A1BB, #3117BB
Tetradic#17BB31, #174FBB, #BB17A1
Tints, shades & saturation
Channel breakdown
R187
G131
B23
Red187 (73.3%)
Green131 (51.4%)
Blue23 (9%)
Hue39.51°
Saturation (HSL)78.1%
Lightness41.18%
Dominant channelRed
Hex per channelR BB · G 83 · B 17
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Harmonies
Similar named colours
Also reads as
BB8317 (chemical formula)
- Formula
- 89,917.58 g/mol
- 8318 atoms
BB8317 has a molar mass of 89,917.58 g/mol, made up of 8318 atoms across 1 element: 8318 × B.
Molar mass
Molar mass89,917.58 g/mol
Total atoms per molecule8318
Distinct elements1
Mass of one molecule1.4931165 × 10^-19 g
Molecules per gram6.6974008 × 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 × 8318)89,917.58 g/mol, 100%
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