Recognised as Colour
#BBA621
- #BBA621
- Yellow
- Dark
- Nearest: Goldenrod
#BBA621 is a yellow with RGB values 187, 166, 33 and HSL 52°, 70%, 43%. It is a dark colour, so black text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Goldenrod.
Colour values
#BBA621#BBA621
HEX#BBA621
RGBrgb(187, 166, 33)
RGB (0–1)0.7333, 0.651, 0.1294
RGB percentages73.3%, 65.1%, 12.9%
HSLhsl(51.8, 70%, 43.1%)
HSV / HSBhsv(51.8, 82.4%, 73.3%)
CMYK0%, 11.2%, 82.4%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,297,761
CSS custom property--colour: #BBA621;
Brightness & contrast
Relative luminance0.37947WCAG 2.x, 0 is black and 1 is white
Perceived brightness163.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.59:1
Contrast with white2.44:1WCAG normal text: Fail
Contrast with black8.59:1WCAG normal text: AAA
Greyscale equivalent#A1A1A1
Inverted#4459DE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.44:1WCAG large text: Fail
Contrast with black, large text8.59:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2136BB
Analogous#BB5921, #83BB21
Triadic#21BBA6, #A621BB
Split complementary#2183BB, #5921BB
Tetradic#21BB59, #2136BB, #BB2183
Tints, shades & saturation
Channel breakdown
R187
G166
B33
Red187 (73.3%)
Green166 (65.1%)
Blue33 (12.9%)
Hue51.82°
Saturation (HSL)70%
Lightness43.14%
Dominant channelRed
Hex per channelR BB · G A6 · B 21
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Harmonies
Similar named colours
Also reads as
BBa621 (chemical formula)
- Formula
- 85,292.74 g/mol
- 622 atoms
BBa621 has a molar mass of 85,292.74 g/mol, made up of 622 atoms across 2 elements: 1 × B, 621 × Ba.
Molar mass
Molar mass85,292.74 g/mol
Total atoms per molecule622
Distinct elements2
Mass of one molecule1.4163193 × 10^-19 g
Molecules per gram7.0605549 × 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%
Ba100%
Boron (B)10.81 g/mol, 0.013%
Barium (Ba × 621)85,281.93 g/mol, 99.987%
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