Recognised as Colour
#F32528
- #F32528
- Red
- Dark
- Nearest: Red
#F32528 is a red with RGB values 243, 37, 40 and HSL 359°, 90%, 55%. It is a dark colour, so black text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#F32528#F32528
HEX#F32528
RGBrgb(243, 37, 40)
RGB (0–1)0.9529, 0.1451, 0.1569
RGB percentages95.3%, 14.5%, 15.7%
HSLhsl(359.1, 89.6%, 54.9%)
HSV / HSBhsv(359.1, 84.8%, 95.3%)
CMYK0%, 84.8%, 83.5%, 4.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,934,760
CSS custom property--colour: #F32528;
Brightness & contrast
Relative luminance0.20531WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.11:1
Contrast with white4.11:1WCAG normal text: Fail
Contrast with black5.11:1WCAG normal text: AA
Greyscale equivalent#515151
Inverted#0CDAD7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.11:1WCAG large text: AA
Contrast with black, large text5.11:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#25F3F0
Analogous#F3258F, #F38925
Triadic#28F325, #2528F3
Split complementary#25F389, #258FF3
Tetradic#8FF325, #25F3F0, #8925F3
Tints, shades & saturation
Channel breakdown
R243
G37
B40
Red243 (95.3%)
Green37 (14.5%)
Blue40 (15.7%)
Hue359.13°
Saturation (HSL)89.57%
Lightness54.9%
Dominant channelRed
Hex per channelR F3 · G 25 · B 28
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Also reads as
F32528 (chemical formula)
- Formula
- 617,966.944 g/mol
- 32528 atoms
F32528 has a molar mass of 617,966.944 g/mol, made up of 32528 atoms across 1 element: 32528 × F.
Molar mass
Molar mass617,966.944 g/mol
Total atoms per molecule32528
Distinct elements1
Mass of one molecule1.0261583 × 10^-18 g
Molecules per gram9.7450856 × 10^17
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
F100%
Fluorine (F × 32528)617,966.944 g/mol, 100%
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