Recognised as Colour
#FB8355
- #FB8355
- Orange
- Dark
- Nearest: Coral
#FB8355 is a orange with RGB values 251, 131, 85 and HSL 17°, 95%, 66%. It is a dark colour, so black text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Coral.
Colour values
#FB8355#FB8355
HEX#FB8355
RGBrgb(251, 131, 85)
RGB (0–1)0.9843, 0.5137, 0.3333
RGB percentages98.4%, 51.4%, 33.3%
HSLhsl(16.6, 95.4%, 65.9%)
HSV / HSBhsv(16.6, 66.1%, 98.4%)
CMYK0%, 47.8%, 66.1%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,483,157
CSS custom property--colour: #FB8355;
Brightness & contrast
Relative luminance0.37398WCAG 2.x, 0 is black and 1 is white
Perceived brightness172.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.48:1
Contrast with white2.48:1WCAG normal text: Fail
Contrast with black8.48:1WCAG normal text: AAA
Greyscale equivalent#999999
Inverted#047CAA
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.48:1WCAG large text: Fail
Contrast with black, large text8.48:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#55CDFB
Analogous#FB557A, #FBD655
Triadic#55FB83, #8355FB
Split complementary#55FBD6, #557AFB
Tetradic#7AFB55, #55CDFB, #D655FB
Tints, shades & saturation
Channel breakdown
R251
G131
B85
Red251 (98.4%)
Green131 (51.4%)
Blue85 (33.3%)
Hue16.63°
Saturation (HSL)95.4%
Lightness65.88%
Dominant channelRed
Hex per channelR FB · G 83 · B 55
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Also reads as
FB8355 (chemical formula)
- Formula
- 90,336.548 g/mol
- 8356 atoms
FB8355 has a molar mass of 90,336.548 g/mol, made up of 8356 atoms across 2 elements: 1 × F, 8355 × B.
Molar mass
Molar mass90,336.548 g/mol
Total atoms per molecule8356
Distinct elements2
Mass of one molecule1.5000737 × 10^-19 g
Molecules per gram6.6663393 × 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
F0%
B100%
Fluorine (F)18.998 g/mol, 0.021%
Boron (B × 8355)90,317.55 g/mol, 99.979%
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