Recognised as Colour
#BBB139
- #BBB139
- Yellow
- Dark
- Nearest: Olive
#BBB139 is a yellow with RGB values 187, 177, 57 and HSL 55°, 53%, 48%. It is a dark colour, so black text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Olive.
Colour values
#BBB139#BBB139
HEX#BBB139
RGBrgb(187, 177, 57)
RGB (0–1)0.7333, 0.6941, 0.2235
RGB percentages73.3%, 69.4%, 22.4%
HSLhsl(55.4, 53.3%, 47.8%)
HSV / HSBhsv(55.4, 69.5%, 73.3%)
CMYK0%, 5.3%, 69.5%, 26.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,300,601
CSS custom property--colour: #BBB139;
Brightness & contrast
Relative luminance0.42304WCAG 2.x, 0 is black and 1 is white
Perceived brightness170.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.46:1
Contrast with white2.22:1WCAG normal text: Fail
Contrast with black9.46:1WCAG normal text: AAA
Greyscale equivalent#AAAAAA
Inverted#444EC6
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text2.22:1WCAG large text: Fail
Contrast with black, large text9.46:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3943BB
Analogous#BB7039, #84BB39
Triadic#39BBB1, #B139BB
Split complementary#3984BB, #7039BB
Tetradic#39BB70, #3943BB, #BB3984
Tints, shades & saturation
Channel breakdown
R187
G177
B57
Red187 (73.3%)
Green177 (69.4%)
Blue57 (22.4%)
Hue55.38°
Saturation (HSL)53.28%
Lightness47.84%
Dominant channelRed
Hex per channelR BB · G B1 · B 39
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Harmonies
Similar named colours
Also reads as
BBB139 (chemical formula)
- Formula
- 1,524.21 g/mol
- 141 atoms
BBB139 has a molar mass of 1,524.21 g/mol, made up of 141 atoms across 1 element: 141 × B.
Molar mass
Molar mass1,524.21 g/mol
Total atoms per molecule141
Distinct elements1
Mass of one molecule2.5310103 × 10^-21 g
Molecules per gram3.9509915 × 10^20
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 × 141)1,524.21 g/mol, 100%
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