Recognised as Colour
#FE5813
- #FE5813
- Orange
- Dark
- Nearest: Orange red
#FE5813 is a orange with RGB values 254, 88, 19 and HSL 18°, 99%, 54%. It is a dark colour, so black text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#FE5813#FE5813
HEX#FE5813
RGBrgb(254, 88, 19)
RGB (0–1)0.9961, 0.3451, 0.0745
RGB percentages99.6%, 34.5%, 7.5%
HSLhsl(17.6, 99.2%, 53.5%)
HSV / HSBhsv(17.6, 92.5%, 99.6%)
CMYK0%, 65.4%, 92.5%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,668,691
CSS custom property--colour: #FE5813;
Brightness & contrast
Relative luminance0.28097WCAG 2.x, 0 is black and 1 is white
Perceived brightness154.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.62:1
Contrast with white3.17:1WCAG normal text: Fail
Contrast with black6.62:1WCAG normal text: AA
Greyscale equivalent#767676
Inverted#01A7EC
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.17:1WCAG large text: AA
Contrast with black, large text6.62:1WCAG large text: AAA
Named colours
Hue familyorange
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#13B9FE
Analogous#FE1344, #FECD13
Triadic#13FE58, #5813FE
Split complementary#13FECE, #1343FE
Tetradic#43FE13, #13B9FE, #CE13FE
Tints, shades & saturation
Channel breakdown
R254
G88
B19
Red254 (99.6%)
Green88 (34.5%)
Blue19 (7.5%)
Hue17.62°
Saturation (HSL)99.16%
Lightness53.53%
Dominant channelRed
Hex per channelR FE · G 58 · B 13
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Also reads as
Fe5813 (chemical formula)
- Formula
- 324,626.985 g/mol
- 5813 atoms
Fe5813 has a molar mass of 324,626.985 g/mol, made up of 5813 atoms across 1 element: 5813 × Fe.
Molar mass
Molar mass324,626.985 g/mol
Total atoms per molecule5813
Distinct elements1
Mass of one molecule5.3905579 × 10^-19 g
Molecules per gram1.8550956 × 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 × 5813)324,626.985 g/mol, 100%
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