Recognised as Colour
#BB6517
- #BB6517
- Orange
- Dark
- Nearest: Chocolate
#BB6517 is a orange with RGB values 187, 101, 23 and HSL 29°, 78%, 41%. It is a dark colour, so black text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Chocolate.
Colour values
#BB6517#BB6517
HEX#BB6517
RGBrgb(187, 101, 23)
RGB (0–1)0.7333, 0.3961, 0.0902
RGB percentages73.3%, 39.6%, 9%
HSLhsl(28.5, 78.1%, 41.2%)
HSV / HSBhsv(28.5, 87.7%, 73.3%)
CMYK0%, 46%, 87.7%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,281,111
CSS custom property--colour: #BB6517;
Brightness & contrast
Relative luminance0.19934WCAG 2.x, 0 is black and 1 is white
Perceived brightness128.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 4.99:1
Contrast with white4.21:1WCAG normal text: Fail
Contrast with black4.99:1WCAG normal text: AA
Greyscale equivalent#727272
Inverted#449AE8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.21:1WCAG large text: AA
Contrast with black, large text4.99:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#176DBB
Analogous#BB171B, #BBB717
Triadic#17BB65, #6517BB
Split complementary#17BBB7, #171BBB
Tetradic#1BBB17, #176DBB, #B717BB
Tints, shades & saturation
Channel breakdown
R187
G101
B23
Red187 (73.3%)
Green101 (39.6%)
Blue23 (9%)
Hue28.54°
Saturation (HSL)78.1%
Lightness41.18%
Dominant channelRed
Hex per channelR BB · G 65 · B 17
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Also reads as
BB6517 (chemical formula)
- Formula
- 70,459.58 g/mol
- 6518 atoms
BB6517 has a molar mass of 70,459.58 g/mol, made up of 6518 atoms across 1 element: 6518 × B.
Molar mass
Molar mass70,459.58 g/mol
Total atoms per molecule6518
Distinct elements1
Mass of one molecule1.1700089 × 10^-19 g
Molecules per gram8.5469439 × 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 × 6518)70,459.58 g/mol, 100%
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