Recognised as Colour
#FF4611
- #FF4611
- Red
- Dark
- Nearest: Orange red
#FF4611 is a red with RGB values 255, 70, 17 and HSL 13°, 100%, 53%. It is a dark colour, so black text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#FF4611#FF4611
HEX#FF4611
RGBrgb(255, 70, 17)
RGB (0–1)1, 0.2745, 0.0667
RGB percentages100%, 27.5%, 6.7%
HSLhsl(13.4, 100%, 53.3%)
HSV / HSBhsv(13.4, 93.3%, 100%)
CMYK0%, 72.5%, 93.3%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,729,617
CSS custom property--colour: #FF4611;
Brightness & contrast
Relative luminance0.25681WCAG 2.x, 0 is black and 1 is white
Perceived brightness149.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.14:1
Contrast with white3.42:1WCAG normal text: Fail
Contrast with black6.14:1WCAG normal text: AA
Greyscale equivalent#6A6A6A
Inverted#00B9EE
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.42:1WCAG large text: AA
Contrast with black, large text6.14:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#11CAFF
Analogous#FF1153, #FFBD11
Triadic#11FF46, #4611FF
Split complementary#11FFBD, #1153FF
Tetradic#53FF11, #11CAFF, #BD11FF
Tints, shades & saturation
Channel breakdown
R255
G70
B17
Red255 (100%)
Green70 (27.5%)
Blue17 (6.7%)
Hue13.36°
Saturation (HSL)100%
Lightness53.33%
Dominant channelRed
Hex per channelR FF · G 46 · B 11
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Also reads as
FF4611 (chemical formula)
- Formula
- 87,618.776 g/mol
- 4612 atoms
FF4611 has a molar mass of 87,618.776 g/mol, made up of 4612 atoms across 1 element: 4612 × F.
Molar mass
Molar mass87,618.776 g/mol
Total atoms per molecule4612
Distinct elements1
Mass of one molecule1.454944 × 10^-19 g
Molecules per gram6.8731167 × 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
F100%
Fluorine (F × 4612)87,618.776 g/mol, 100%
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