Recognised as Colour
#FB8527
- #FB8527
- Orange
- Dark
- Nearest: Dark orange
#FB8527 is a orange with RGB values 251, 133, 39 and HSL 27°, 96%, 57%. It is a dark colour, so black text on it reaches 8.5:1 contrast (AAA for normal text). The nearest named colour is Dark orange.
Colour values
#FB8527#FB8527
HEX#FB8527
RGBrgb(251, 133, 39)
RGB (0–1)0.9843, 0.5216, 0.1529
RGB percentages98.4%, 52.2%, 15.3%
HSLhsl(26.6, 96.4%, 56.9%)
HSV / HSBhsv(26.6, 84.5%, 98.4%)
CMYK0%, 47%, 84.5%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,483,623
CSS custom property--colour: #FB8527;
Brightness & contrast
Relative luminance0.37431WCAG 2.x, 0 is black and 1 is white
Perceived brightness171.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 8.49:1
Contrast with white2.47:1WCAG normal text: Fail
Contrast with black8.49:1WCAG normal text: AAA
Greyscale equivalent#979797
Inverted#047AD8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text2.47:1WCAG large text: Fail
Contrast with black, large text8.49:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#279DFB
Analogous#FB2733, #FBEF27
Triadic#27FB85, #8527FB
Split complementary#27FBEF, #2733FB
Tetradic#33FB27, #279DFB, #EF27FB
Tints, shades & saturation
Channel breakdown
R251
G133
B39
Red251 (98.4%)
Green133 (52.2%)
Blue39 (15.3%)
Hue26.6°
Saturation (HSL)96.36%
Lightness56.86%
Dominant channelRed
Hex per channelR FB · G 85 · B 27
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Also reads as
FB8527 (chemical formula)
- Formula
- 92,195.868 g/mol
- 8528 atoms
FB8527 has a molar mass of 92,195.868 g/mol, made up of 8528 atoms across 2 elements: 1 × F, 8527 × B.
Molar mass
Molar mass92,195.868 g/mol
Total atoms per molecule8528
Distinct elements2
Mass of one molecule1.5309484 × 10^-19 g
Molecules per gram6.5318988 × 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 × 8527)92,176.87 g/mol, 99.979%
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