Recognised as Colour
#F99100
- #F99100
- Orange
- Dark
- Nearest: Dark orange
#F99100 is a orange with RGB values 249, 145, 0 and HSL 35°, 100%, 49%. It is a dark colour, so black text on it reaches 9.1:1 contrast (AAA for normal text). The nearest named colour is Dark orange.
Colour values
#F99100#F99100
HEX#F99100
RGBrgb(249, 145, 0)
RGB (0–1)0.9765, 0.5686, 0
RGB percentages97.6%, 56.9%, 0%
HSLhsl(34.9, 100%, 48.8%)
HSV / HSBhsv(34.9, 100%, 97.6%)
CMYK0%, 41.8%, 100%, 2.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,355,584
CSS custom property--colour: #F99100;
Brightness & contrast
Relative luminance0.40391WCAG 2.x, 0 is black and 1 is white
Perceived brightness175.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 9.08:1
Contrast with white2.31:1WCAG normal text: Fail
Contrast with black9.08:1WCAG normal text: AAA
Greyscale equivalent#9D9D9D
Inverted#066EFF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.31:1WCAG large text: Fail
Contrast with black, large text9.08:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#0068F9
Analogous#F91400, #E5F900
Triadic#00F991, #9100F9
Split complementary#00E5F9, #1400F9
Tetradic#00F914, #0068F9, #F900E5
Tints, shades & saturation
Channel breakdown
R249
G145
B0
Red249 (97.6%)
Green145 (56.9%)
Blue0 (0%)
Hue34.94°
Saturation (HSL)100%
Lightness48.82%
Dominant channelRed
Hex per channelR F9 · G 91 · B 00
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Also reads as
F99100 (chemical formula)
- Formula
- 1,882,701.8 g/mol
- 99100 atoms
F99100 has a molar mass of 1,882,701.8 g/mol, made up of 99100 atoms across 1 element: 99100 × F.
Molar mass
Molar mass1,882,701.8 g/mol
Total atoms per molecule99100
Distinct elements1
Mass of one molecule3.1262999 × 10^-18 g
Molecules per gram3.1986695 × 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 × 99100)1,882,701.8 g/mol, 100%
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