Recognised as Colour
#B22110
- #B22110
- Red
- Dark
- Nearest: Firebrick
#B22110 is a red with RGB values 178, 33, 16 and HSL 6°, 84%, 38%. It is a dark colour, so white text on it reaches 6.7:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#B22110#B22110
HEX#B22110
RGBrgb(178, 33, 16)
RGB (0–1)0.698, 0.1294, 0.0627
RGB percentages69.8%, 12.9%, 6.3%
HSLhsl(6.3, 83.5%, 38%)
HSV / HSBhsv(6.3, 91%, 69.8%)
CMYK0%, 81.5%, 91%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,673,872
CSS custom property--colour: #B22110;
Brightness & contrast
Relative luminance0.1059WCAG 2.x, 0 is black and 1 is white
Perceived brightness100.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.74:1
Contrast with white6.74:1WCAG normal text: AA
Contrast with black3.12:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#4DDEEF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.74:1WCAG large text: AAA
Contrast with black, large text3.12:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10A1B2
Analogous#B21050, #B27210
Triadic#10B221, #2110B2
Split complementary#10B272, #1050B2
Tetradic#50B210, #10A1B2, #7210B2
Tints, shades & saturation
Channel breakdown
R178
G33
B16
Red178 (69.8%)
Green33 (12.9%)
Blue16 (6.3%)
Hue6.3°
Saturation (HSL)83.51%
Lightness38.04%
Dominant channelRed
Hex per channelR B2 · G 21 · B 10
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Also reads as
B22110 (chemical formula)
- Formula
- 239,009.1 g/mol
- 22110 atoms
B22110 has a molar mass of 239,009.1 g/mol, made up of 22110 atoms across 1 element: 22110 × B.
Molar mass
Molar mass239,009.1 g/mol
Total atoms per molecule22110
Distinct elements1
Mass of one molecule3.9688395 × 10^-19 g
Molecules per gram2.5196282 × 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
B100%
Boron (B × 22110)239,009.1 g/mol, 100%
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