Recognised as Colour
#FF3210
- #FF3210
- Red
- Dark
- Nearest: Orange red
#FF3210 is a red with RGB values 255, 50, 16 and HSL 9°, 100%, 53%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Orange red.
Colour values
#FF3210#FF3210
HEX#FF3210
RGBrgb(255, 50, 16)
RGB (0–1)1, 0.1961, 0.0627
RGB percentages100%, 19.6%, 6.3%
HSLhsl(8.5, 100%, 53.1%)
HSV / HSBhsv(8.5, 93.7%, 100%)
CMYK0%, 80.4%, 93.7%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,724,496
CSS custom property--colour: #FF3210;
Brightness & contrast
Relative luminance0.23579WCAG 2.x, 0 is black and 1 is white
Perceived brightness144.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.72:1
Contrast with white3.67:1WCAG normal text: Fail
Contrast with black5.72:1WCAG normal text: AA
Greyscale equivalent#5B5B5B
Inverted#00CDEF
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.67:1WCAG large text: AA
Contrast with black, large text5.72:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#10DDFF
Analogous#FF1065, #FFAA10
Triadic#10FF32, #3210FF
Split complementary#10FFA9, #1066FF
Tetradic#66FF10, #10DDFF, #AA10FF
Tints, shades & saturation
Channel breakdown
R255
G50
B16
Red255 (100%)
Green50 (19.6%)
Blue16 (6.3%)
Hue8.54°
Saturation (HSL)100%
Lightness53.14%
Dominant channelRed
Hex per channelR FF · G 32 · B 10
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Also reads as
FF3210 (chemical formula)
- Formula
- 61,002.578 g/mol
- 3211 atoms
FF3210 has a molar mass of 61,002.578 g/mol, made up of 3211 atoms across 1 element: 3211 × F.
Molar mass
Molar mass61,002.578 g/mol
Total atoms per molecule3211
Distinct elements1
Mass of one molecule1.0129716 × 10^-19 g
Molecules per gram9.8719447 × 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 × 3211)61,002.578 g/mol, 100%
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