Recognised as Colour
#FE5011
- #FE5011
- Orange
- Dark
- Nearest: Orange red
#FE5011 is a orange with RGB values 254, 80, 17 and HSL 16°, 99%, 53%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#FE5011#FE5011
HEX#FE5011
RGBrgb(254, 80, 17)
RGB (0–1)0.9961, 0.3137, 0.0667
RGB percentages99.6%, 31.4%, 6.7%
HSLhsl(15.9, 99.2%, 53.1%)
HSV / HSBhsv(15.9, 93.3%, 99.6%)
CMYK0%, 68.5%, 93.3%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,666,641
CSS custom property--colour: #FE5011;
Brightness & contrast
Relative luminance0.26849WCAG 2.x, 0 is black and 1 is white
Perceived brightness151.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.37:1
Contrast with white3.3:1WCAG normal text: Fail
Contrast with black6.37:1WCAG normal text: AA
Greyscale equivalent#707070
Inverted#01AFEE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.3:1WCAG large text: AA
Contrast with black, large text6.37:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#11BFFE
Analogous#FE1149, #FEC611
Triadic#11FE50, #5011FE
Split complementary#11FEC6, #1149FE
Tetradic#49FE11, #11BFFE, #C611FE
Tints, shades & saturation
Channel breakdown
R254
G80
B17
Red254 (99.6%)
Green80 (31.4%)
Blue17 (6.7%)
Hue15.95°
Saturation (HSL)99.16%
Lightness53.14%
Dominant channelRed
Hex per channelR FE · G 50 · B 11
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Also reads as
Fe5011 (chemical formula)
- Formula
- 279,839.295 g/mol
- 5011 atoms
Fe5011 has a molar mass of 279,839.295 g/mol, made up of 5011 atoms across 1 element: 5011 × Fe.
Molar mass
Molar mass279,839.295 g/mol
Total atoms per molecule5011
Distinct elements1
Mass of one molecule4.6468408 × 10^-19 g
Molecules per gram2.1519997 × 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
Fe100%
Iron (Fe × 5011)279,839.295 g/mol, 100%
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