Recognised as Colour
#B54325
- #B54325
- Red
- Dark
- Nearest: Firebrick
#B54325 is a red with RGB values 181, 67, 37 and HSL 13°, 66%, 43%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#B54325#B54325
HEX#B54325
RGBrgb(181, 67, 37)
RGB (0–1)0.7098, 0.2627, 0.1451
RGB percentages71%, 26.3%, 14.5%
HSLhsl(12.5, 66.1%, 42.7%)
HSV / HSBhsv(12.5, 79.6%, 71%)
CMYK0%, 63%, 79.6%, 29%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,879,205
CSS custom property--colour: #B54325;
Brightness & contrast
Relative luminance0.13972WCAG 2.x, 0 is black and 1 is white
Perceived brightness112.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.53:1
Contrast with white5.53:1WCAG normal text: AA
Contrast with black3.79:1WCAG normal text: Fail
Greyscale equivalent#595959
Inverted#4ABCDA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.53:1WCAG large text: AAA
Contrast with black, large text3.79:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#2597B5
Analogous#B5254F, #B58B25
Triadic#25B543, #4325B5
Split complementary#25B58B, #254FB5
Tetradic#4FB525, #2597B5, #8B25B5
Tints, shades & saturation
Channel breakdown
R181
G67
B37
Red181 (71%)
Green67 (26.3%)
Blue37 (14.5%)
Hue12.5°
Saturation (HSL)66.06%
Lightness42.75%
Dominant channelRed
Hex per channelR B5 · G 43 · B 25
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Also reads as
B54325 (chemical formula)
- Formula
- 587,253.25 g/mol
- 54325 atoms
B54325 has a molar mass of 587,253.25 g/mol, made up of 54325 atoms across 1 element: 54325 × B.
Molar mass
Molar mass587,253.25 g/mol
Total atoms per molecule54325
Distinct elements1
Mass of one molecule9.7515696 × 10^-19 g
Molecules per gram1.0254759 × 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 × 54325)587,253.25 g/mol, 100%
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