Recognised as Colour
#FE3910
- #FE3910
- Red
- Dark
- Nearest: Orange red
#FE3910 is a red with RGB values 254, 57, 16 and HSL 10°, 99%, 53%. It is a dark colour, so black text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#FE3910#FE3910
HEX#FE3910
RGBrgb(254, 57, 16)
RGB (0–1)0.9961, 0.2235, 0.0627
RGB percentages99.6%, 22.4%, 6.3%
HSLhsl(10.3, 99.2%, 52.9%)
HSV / HSBhsv(10.3, 93.7%, 99.6%)
CMYK0%, 77.6%, 93.7%, 0.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,660,752
CSS custom property--colour: #FE3910;
Brightness & contrast
Relative luminance0.24034WCAG 2.x, 0 is black and 1 is white
Perceived brightness145.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.81:1
Contrast with white3.62:1WCAG normal text: Fail
Contrast with black5.81:1WCAG normal text: AA
Greyscale equivalent#606060
Inverted#01C6EF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.62:1WCAG large text: AA
Contrast with black, large text5.81:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10D5FE
Analogous#FE105E, #FEB010
Triadic#10FE39, #3910FE
Split complementary#10FEB0, #105EFE
Tetradic#5EFE10, #10D5FE, #B010FE
Tints, shades & saturation
Channel breakdown
R254
G57
B16
Red254 (99.6%)
Green57 (22.4%)
Blue16 (6.3%)
Hue10.34°
Saturation (HSL)99.17%
Lightness52.94%
Dominant channelRed
Hex per channelR FE · G 39 · B 10
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Also reads as
Fe3910 (chemical formula)
- Formula
- 218,353.95 g/mol
- 3910 atoms
Fe3910 has a molar mass of 218,353.95 g/mol, made up of 3910 atoms across 1 element: 3910 × Fe.
Molar mass
Molar mass218,353.95 g/mol
Total atoms per molecule3910
Distinct elements1
Mass of one molecule3.6258526 × 10^-19 g
Molecules per gram2.757972 × 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 × 3910)218,353.95 g/mol, 100%
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