Recognised as Colour
#F45215
- #F45215
- Orange
- Dark
- Nearest: Orange red
#F45215 is a orange with RGB values 244, 82, 21 and HSL 16°, 91%, 52%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#F45215#F45215
HEX#F45215
RGBrgb(244, 82, 21)
RGB (0–1)0.9569, 0.3216, 0.0824
RGB percentages95.7%, 32.2%, 8.2%
HSLhsl(16.4, 91%, 52%)
HSV / HSBhsv(16.4, 91.4%, 95.7%)
CMYK0%, 66.4%, 91.4%, 4.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,011,797
CSS custom property--colour: #F45215;
Brightness & contrast
Relative luminance0.25322WCAG 2.x, 0 is black and 1 is white
Perceived brightness147.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.06:1
Contrast with white3.46:1WCAG normal text: Fail
Contrast with black6.06:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#0BADEA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.46:1WCAG large text: AA
Contrast with black, large text6.06:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#15B7F4
Analogous#F41547, #F4C215
Triadic#15F452, #5215F4
Split complementary#15F4C1, #1548F4
Tetradic#47F415, #15B7F4, #C115F4
Tints, shades & saturation
Channel breakdown
R244
G82
B21
Red244 (95.7%)
Green82 (32.2%)
Blue21 (8.2%)
Hue16.41°
Saturation (HSL)91.02%
Lightness51.96%
Dominant channelRed
Hex per channelR F4 · G 52 · B 15
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Also reads as
F45215 (chemical formula)
- Formula
- 858,994.57 g/mol
- 45215 atoms
F45215 has a molar mass of 858,994.57 g/mol, made up of 45215 atoms across 1 element: 45215 × F.
Molar mass
Molar mass858,994.57 g/mol
Total atoms per molecule45215
Distinct elements1
Mass of one molecule1.426394 × 10^-18 g
Molecules per gram7.0106855 × 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 × 45215)858,994.57 g/mol, 100%
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