Recognised as Colour
#B11019
- #B11019
- Red
- Dark
- Nearest: Firebrick
#B11019 is a red with RGB values 177, 16, 25 and HSL 357°, 83%, 38%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Firebrick.
Colour values
#B11019#B11019
HEX#B11019
RGBrgb(177, 16, 25)
RGB (0–1)0.6941, 0.0627, 0.098
RGB percentages69.4%, 6.3%, 9.8%
HSLhsl(356.6, 83.4%, 37.8%)
HSV / HSBhsv(356.6, 91%, 69.4%)
CMYK0%, 91%, 85.9%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,603,993
CSS custom property--colour: #B11019;
Brightness & contrast
Relative luminance0.09788WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.1:1
Contrast with white7.1:1WCAG normal text: AAA
Contrast with black2.96:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#4EEFE6
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.1:1WCAG large text: AAA
Contrast with black, large text2.96:1WCAG large text: Fail
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10B1A8
Analogous#B11069, #B15810
Triadic#19B110, #1019B1
Split complementary#10B158, #1069B1
Tetradic#6AB110, #10B1A8, #5810B1
Tints, shades & saturation
Channel breakdown
R177
G16
B25
Red177 (69.4%)
Green16 (6.3%)
Blue25 (9.8%)
Hue356.65°
Saturation (HSL)83.42%
Lightness37.84%
Dominant channelRed
Hex per channelR B1 · G 10 · B 19
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Also reads as
B11019 (chemical formula)
- Formula
- 119,115.39 g/mol
- 11019 atoms
B11019 has a molar mass of 119,115.39 g/mol, made up of 11019 atoms across 1 element: 11019 × B.
Molar mass
Molar mass119,115.39 g/mol
Total atoms per molecule11019
Distinct elements1
Mass of one molecule1.9779576 × 10^-19 g
Molecules per gram5.0557201 × 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 × 11019)119,115.39 g/mol, 100%
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