Recognised as Colour
#F55908
- #F55908
- Orange
- Dark
- Nearest: Orange red
#F55908 is a orange with RGB values 245, 89, 8 and HSL 21°, 94%, 50%. It is a dark colour, so black text on it reaches 6.3:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#F55908#F55908
HEX#F55908
RGBrgb(245, 89, 8)
RGB (0–1)0.9608, 0.349, 0.0314
RGB percentages96.1%, 34.9%, 3.1%
HSLhsl(20.5, 93.7%, 49.6%)
HSV / HSBhsv(20.5, 96.7%, 96.1%)
CMYK0%, 63.7%, 96.7%, 3.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,079,112
CSS custom property--colour: #F55908;
Brightness & contrast
Relative luminance0.26575WCAG 2.x, 0 is black and 1 is white
Perceived brightness150.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.31:1
Contrast with white3.33:1WCAG normal text: Fail
Contrast with black6.31:1WCAG normal text: AA
Greyscale equivalent#747474
Inverted#0AA6F7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.33:1WCAG large text: AA
Contrast with black, large text6.31:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#08A4F5
Analogous#F5082D, #F5CF08
Triadic#08F559, #5908F5
Split complementary#08F5CF, #082EF5
Tetradic#2EF508, #08A4F5, #D008F5
Tints, shades & saturation
Channel breakdown
R245
G89
B8
Red245 (96.1%)
Green89 (34.9%)
Blue8 (3.1%)
Hue20.51°
Saturation (HSL)93.68%
Lightness49.61%
Dominant channelRed
Hex per channelR F5 · G 59 · B 08
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Also reads as
F55908 (chemical formula)
- Formula
- 1,062,140.184 g/mol
- 55908 atoms
F55908 has a molar mass of 1,062,140.184 g/mol, made up of 55908 atoms across 1 element: 55908 × F.
Molar mass
Molar mass1,062,140.184 g/mol
Total atoms per molecule55908
Distinct elements1
Mass of one molecule1.7637253 × 10^-18 g
Molecules per gram5.6698173 × 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 × 55908)1,062,140.184 g/mol, 100%
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