Recognised as Colour
#BDB240
- #BDB240
- Yellow
- Dark
- Nearest: Dark khaki
#BDB240 is a yellow with RGB values 189, 178, 64 and HSL 55°, 49%, 50%. It is a dark colour, so black text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark khaki.
Colour values
#BDB240#BDB240
HEX#BDB240
RGBrgb(189, 178, 64)
RGB (0–1)0.7412, 0.698, 0.251
RGB percentages74.1%, 69.8%, 25.1%
HSLhsl(54.7, 49.4%, 49.6%)
HSV / HSBhsv(54.7, 66.1%, 74.1%)
CMYK0%, 5.8%, 66.1%, 25.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,431,936
CSS custom property--colour: #BDB240;
Brightness & contrast
Relative luminance0.4303WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.61:1
Contrast with white2.19:1WCAG normal text: Fail
Contrast with black9.61:1WCAG normal text: AAA
Greyscale equivalent#ACACAC
Inverted#424DBF
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.19:1WCAG large text: Fail
Contrast with black, large text9.61:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#404BBD
Analogous#BD7340, #89BD40
Triadic#40BDB2, #B240BD
Split complementary#4089BD, #7440BD
Tetradic#40BD74, #404BBD, #BD4089
Tints, shades & saturation
Channel breakdown
R189
G178
B64
Red189 (74.1%)
Green178 (69.8%)
Blue64 (25.1%)
Hue54.72°
Saturation (HSL)49.41%
Lightness49.61%
Dominant channelRed
Hex per channelR BD · G B2 · B 40
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Also reads as
BDb240 (chemical formula)
- Formula
- 64,330.81 g/mol
- 241 atoms
BDb240 has a molar mass of 64,330.81 g/mol, made up of 241 atoms across 2 elements: 1 × B, 240 × Db.
Molar mass
Molar mass64,330.81 g/mol
Total atoms per molecule241
Distinct elements2
Mass of one molecule1.0682382 × 10^-19 g
Molecules per gram9.3612077 × 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
B0%
Db100%
Boron (B)10.81 g/mol, 0.017%
Dubnium (Db × 240)64,320 g/mol, 99.983%
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