Recognised as Colour
#B2901B
- #B2901B
- Yellow
- Dark
- Nearest: Dark goldenrod
#B2901B is a yellow with RGB values 178, 144, 27 and HSL 46°, 74%, 40%. It is a dark colour, so black text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Dark goldenrod.
Colour values
#B2901B#B2901B
HEX#B2901B
RGBrgb(178, 144, 27)
RGB (0–1)0.698, 0.5647, 0.1059
RGB percentages69.8%, 56.5%, 10.6%
HSLhsl(46.5, 73.7%, 40.2%)
HSV / HSBhsv(46.5, 84.8%, 69.8%)
CMYK0%, 19.1%, 84.8%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,702,299
CSS custom property--colour: #B2901B;
Brightness & contrast
Relative luminance0.29491WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.9:1
Contrast with white3.04:1WCAG normal text: Fail
Contrast with black6.9:1WCAG normal text: AA
Greyscale equivalent#8F8F8F
Inverted#4D6FE4
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.04:1WCAG large text: AA
Contrast with black, large text6.9:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#1B3DB2
Analogous#B2441B, #89B21B
Triadic#1BB290, #901BB2
Split complementary#1B89B2, #441BB2
Tetradic#1BB244, #1B3DB2, #B21B89
Tints, shades & saturation
Channel breakdown
R178
G144
B27
Red178 (69.8%)
Green144 (56.5%)
Blue27 (10.6%)
Hue46.49°
Saturation (HSL)73.66%
Lightness40.2%
Dominant channelRed
Hex per channelR B2 · G 90 · B 1B
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Also reads as
B2901B (chemical formula)
- Formula
- 31,370.62 g/mol
- 2902 atoms
B2901B has a molar mass of 31,370.62 g/mol, made up of 2902 atoms across 1 element: 2902 × B.
Molar mass
Molar mass31,370.62 g/mol
Total atoms per molecule2902
Distinct elements1
Mass of one molecule5.209214 × 10^-20 g
Molecules per gram1.9196754 × 10^19
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 × 2902)31,370.62 g/mol, 100%
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