Recognised as Colour
#FB2C27
- #FB2C27
- Red
- Dark
- Nearest: Red
#FB2C27 is a red with RGB values 251, 44, 39 and HSL 1°, 96%, 57%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Red.
Colour values
#FB2C27#FB2C27
HEX#FB2C27
RGBrgb(251, 44, 39)
RGB (0–1)0.9843, 0.1725, 0.1529
RGB percentages98.4%, 17.3%, 15.3%
HSLhsl(1.4, 96.4%, 56.9%)
HSV / HSBhsv(1.4, 84.5%, 98.4%)
CMYK0%, 82.5%, 84.5%, 1.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer16,460,839
CSS custom property--colour: #FB2C27;
Brightness & contrast
Relative luminance0.22457WCAG 2.x, 0 is black and 1 is white
Perceived brightness141.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.49:1
Contrast with white3.82:1WCAG normal text: Fail
Contrast with black5.49:1WCAG normal text: AA
Greyscale equivalent#585858
Inverted#04D3D8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.82:1WCAG large text: AA
Contrast with black, large text5.49:1WCAG large text: AAA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#27F6FB
Analogous#FB278C, #FB9627
Triadic#27FB2C, #2C27FB
Split complementary#27FB96, #278CFB
Tetradic#8CFB27, #27F6FB, #9627FB
Tints, shades & saturation
Channel breakdown
R251
G44
B39
Red251 (98.4%)
Green44 (17.3%)
Blue39 (15.3%)
Hue1.42°
Saturation (HSL)96.36%
Lightness56.86%
Dominant channelRed
Hex per channelR FB · G 2C · B 27
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Also reads as
FB2C27 (chemical formula)
- Formula
- 364.915 g/mol
- 30 atoms
FB2C27 has a molar mass of 364.915 g/mol, made up of 30 atoms across 3 elements: 1 × F, 2 × B, 27 × C.
Molar mass
Molar mass364.915 g/mol
Total atoms per molecule30
Distinct elements3
Mass of one molecule6.0595561 × 10^-22 g
Molecules per gram1.6502859 × 10^21
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
F5.2%
B5.9%
C88.9%
Fluorine (F)18.998 g/mol, 5.206%
Boron (B × 2)21.62 g/mol, 5.925%
Carbon (C × 27)324.297 g/mol, 88.869%
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