Recognised as Colour
#B15154
- #B15154
- Red
- Dark
- Nearest: Indian red
#B15154 is a red with RGB values 177, 81, 84 and HSL 358°, 38%, 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
#B15154#B15154
HEX#B15154
RGBrgb(177, 81, 84)
RGB (0–1)0.6941, 0.3176, 0.3294
RGB percentages69.4%, 31.8%, 32.9%
HSLhsl(358.1, 38.1%, 50.6%)
HSV / HSBhsv(358.1, 54.2%, 69.4%)
CMYK0%, 54.2%, 52.5%, 30.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,620,692
CSS custom property--colour: #B15154;
Brightness & contrast
Relative luminance0.15872WCAG 2.x, 0 is black and 1 is white
Perceived brightness118.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.03:1
Contrast with white5.03:1WCAG normal text: AA
Contrast with black4.17:1WCAG normal text: Fail
Greyscale equivalent#666666
Inverted#4EAEAB
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.03:1WCAG large text: AAA
Contrast with black, large text4.17:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#51B1AE
Analogous#B15184, #B17E51
Triadic#54B151, #5154B1
Split complementary#51B17E, #5184B1
Tetradic#84B151, #51B1AE, #7E51B1
Tints, shades & saturation
Channel breakdown
R177
G81
B84
Red177 (69.4%)
Green81 (31.8%)
Blue84 (32.9%)
Hue358.13°
Saturation (HSL)38.1%
Lightness50.59%
Dominant channelRed
Hex per channelR B1 · G 51 · B 54
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Harmonies
Similar named colours
Also reads as
B15154 (chemical formula)
- Formula
- 163,814.74 g/mol
- 15154 atoms
B15154 has a molar mass of 163,814.74 g/mol, made up of 15154 atoms across 1 element: 15154 × B.
Molar mass
Molar mass163,814.74 g/mol
Total atoms per molecule15154
Distinct elements1
Mass of one molecule2.7202078 × 10^-19 g
Molecules per gram3.6761898 × 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 × 15154)163,814.74 g/mol, 100%
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