Recognised as Colour
#B25335
- #B25335
- Red
- Dark
- Nearest: Sienna
#B25335 is a red with RGB values 178, 83, 53 and HSL 14°, 54%, 45%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Sienna.
Colour values
#B25335#B25335
HEX#B25335
RGBrgb(178, 83, 53)
RGB (0–1)0.698, 0.3255, 0.2078
RGB percentages69.8%, 32.5%, 20.8%
HSLhsl(14.4, 54.1%, 45.3%)
HSV / HSBhsv(14.4, 70.2%, 69.8%)
CMYK0%, 53.4%, 70.2%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer11,686,709
CSS custom property--colour: #B25335;
Brightness & contrast
Relative luminance0.15909WCAG 2.x, 0 is black and 1 is white
Perceived brightness117.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.02:1
Contrast with white5.02:1WCAG normal text: AA
Contrast with black4.18:1WCAG normal text: Fail
Greyscale equivalent#656565
Inverted#4DACCA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.02:1WCAG large text: AAA
Contrast with black, large text4.18:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#3594B2
Analogous#B23556, #B29135
Triadic#35B253, #5335B2
Split complementary#35B291, #3556B2
Tetradic#56B235, #3594B2, #9135B2
Tints, shades & saturation
Channel breakdown
R178
G83
B53
Red178 (69.8%)
Green83 (32.5%)
Blue53 (20.8%)
Hue14.4°
Saturation (HSL)54.11%
Lightness45.29%
Dominant channelRed
Hex per channelR B2 · G 53 · B 35
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Harmonies
Similar named colours
Also reads as
B25335 (chemical formula)
- Formula
- 273,871.35 g/mol
- 25335 atoms
B25335 has a molar mass of 273,871.35 g/mol, made up of 25335 atoms across 1 element: 25335 × B.
Molar mass
Molar mass273,871.35 g/mol
Total atoms per molecule25335
Distinct elements1
Mass of one molecule4.5477408 × 10^-19 g
Molecules per gram2.198894 × 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 × 25335)273,871.35 g/mol, 100%
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