Recognised as Colour
#B55054
- #B55054
- Red
- Dark
- Nearest: Indian red
#B55054 is a red with RGB values 181, 80, 84 and HSL 358°, 41%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Indian red.
Colour values
#B55054#B55054
HEX#B55054
RGBrgb(181, 80, 84)
RGB (0–1)0.7098, 0.3137, 0.3294
RGB percentages71%, 31.4%, 32.9%
HSLhsl(357.6, 40.6%, 51.2%)
HSV / HSBhsv(357.6, 55.8%, 71%)
CMYK0%, 55.8%, 53.6%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,882,580
CSS custom property--colour: #B55054;
Brightness & contrast
Relative luminance0.16201WCAG 2.x, 0 is black and 1 is white
Perceived brightness119.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.95:1
Contrast with white4.95:1WCAG normal text: AA
Contrast with black4.24:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#4AAFAB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.95:1WCAG large text: AAA
Contrast with black, large text4.24:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#50B5B1
Analogous#B55086, #B57E50
Triadic#54B550, #5054B5
Split complementary#50B57E, #5086B5
Tetradic#87B550, #50B5B1, #7F50B5
Tints, shades & saturation
Channel breakdown
R181
G80
B84
Red181 (71%)
Green80 (31.4%)
Blue84 (32.9%)
Hue357.62°
Saturation (HSL)40.56%
Lightness51.18%
Dominant channelRed
Hex per channelR B5 · G 50 · B 54
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Harmonies
Similar named colours
Also reads as
B55054 (chemical formula)
- Formula
- 595,133.74 g/mol
- 55054 atoms
B55054 has a molar mass of 595,133.74 g/mol, made up of 55054 atoms across 1 element: 55054 × B.
Molar mass
Molar mass595,133.74 g/mol
Total atoms per molecule55054
Distinct elements1
Mass of one molecule9.8824283 × 10^-19 g
Molecules per gram1.0118971 × 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 × 55054)595,133.74 g/mol, 100%
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