Recognised as Colour
#B5C331
- #B5C331
- Yellow
- Dark
- Nearest: Yellow green
#B5C331 is a yellow with RGB values 181, 195, 49 and HSL 66°, 60%, 48%. It is a dark colour, so black text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Yellow green.
Colour values
#B5C331#B5C331
HEX#B5C331
RGBrgb(181, 195, 49)
RGB (0–1)0.7098, 0.7647, 0.1922
RGB percentages71%, 76.5%, 19.2%
HSLhsl(65.8, 59.8%, 47.8%)
HSV / HSBhsv(65.8, 74.9%, 76.5%)
CMYK7.2%, 0%, 74.9%, 23.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,911,985
CSS custom property--colour: #B5C331;
Brightness & contrast
Relative luminance0.49076WCAG 2.x, 0 is black and 1 is white
Perceived brightness180 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 10.82:1
Contrast with white1.94:1WCAG normal text: Fail
Contrast with black10.82:1WCAG normal text: AAA
Greyscale equivalent#B5B5B5
Inverted#4A3CCE
Colour vision & accessibility
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text1.94:1WCAG large text: Fail
Contrast with black, large text10.82:1WCAG large text: AAA
Named colours
Hue familyyellow
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3F31C3
Analogous#C38831, #6CC331
Triadic#31B5C3, #C331B5
Split complementary#316CC3, #8831C3
Tetradic#31C388, #3F31C3, #C3316C
Tints, shades & saturation
Channel breakdown
R181
G195
B49
Red181 (71%)
Green195 (76.5%)
Blue49 (19.2%)
Hue65.75°
Saturation (HSL)59.84%
Lightness47.84%
Dominant channelGreen
Hex per channelR B5 · G C3 · B 31
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Also reads as
B5C331 (chemical formula)
- Formula
- 4,029.691 g/mol
- 336 atoms
B5C331 has a molar mass of 4,029.691 g/mol, made up of 336 atoms across 2 elements: 5 × B, 331 × C.
Molar mass
Molar mass4,029.691 g/mol
Total atoms per molecule336
Distinct elements2
Mass of one molecule6.6914593 × 10^-21 g
Molecules per gram1.4944423 × 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
B1.3%
C98.7%
Boron (B × 5)54.05 g/mol, 1.341%
Carbon (C × 331)3,975.641 g/mol, 98.659%
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