Recognised as Colour
#F25100
- #F25100
- Orange
- Dark
- Nearest: Orange red
#F25100 is a orange with RGB values 242, 81, 0 and HSL 20°, 100%, 47%. It is a dark colour, so black text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#F25100#F25100
HEX#F25100
RGBrgb(242, 81, 0)
RGB (0–1)0.949, 0.3176, 0
RGB percentages94.9%, 31.8%, 0%
HSLhsl(20.1, 100%, 47.5%)
HSV / HSBhsv(20.1, 100%, 94.9%)
CMYK0%, 66.5%, 100%, 5.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,880,448
CSS custom property--colour: #F25100;
Brightness & contrast
Relative luminance0.24762WCAG 2.x, 0 is black and 1 is white
Perceived brightness146.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.95:1
Contrast with white3.53:1WCAG normal text: Fail
Contrast with black5.95:1WCAG normal text: AA
Greyscale equivalent#6D6D6D
Inverted#0DAEFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.53:1WCAG large text: AA
Contrast with black, large text5.95:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#00A1F2
Analogous#F20028, #F2CA00
Triadic#00F251, #5100F2
Split complementary#00F2CA, #0028F2
Tetradic#28F200, #00A1F2, #CA00F2
Tints, shades & saturation
Channel breakdown
R242
G81
B0
Red242 (94.9%)
Green81 (31.8%)
Blue0 (0%)
Hue20.08°
Saturation (HSL)100%
Lightness47.45%
Dominant channelRed
Hex per channelR F2 · G 51 · B 00
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Also reads as
F25100 (chemical formula)
- Formula
- 476,849.8 g/mol
- 25100 atoms
F25100 has a molar mass of 476,849.8 g/mol, made up of 25100 atoms across 1 element: 25100 × F.
Molar mass
Molar mass476,849.8 g/mol
Total atoms per molecule25100
Distinct elements1
Mass of one molecule7.9182772 × 10^-19 g
Molecules per gram1.262901 × 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
F100%
Fluorine (F × 25100)476,849.8 g/mol, 100%
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