Recognised as Colour
#C22138
- #C22138
- Red
- Dark
- Nearest: Firebrick
#C22138 is a red with RGB values 194, 33, 56 and HSL 351°, 71%, 45%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#C22138#C22138
HEX#C22138
RGBrgb(194, 33, 56)
RGB (0–1)0.7608, 0.1294, 0.2196
RGB percentages76.1%, 12.9%, 22%
HSLhsl(351.4, 70.9%, 44.5%)
HSV / HSBhsv(351.4, 83%, 76.1%)
CMYK0%, 83%, 71.1%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,722,488
CSS custom property--colour: #C22138;
Brightness & contrast
Relative luminance0.12843WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.88:1
Contrast with white5.88:1WCAG normal text: AA
Contrast with black3.57:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#3DDEC7
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.88:1WCAG large text: AAA
Contrast with black, large text3.57:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#21C2AB
Analogous#C22188, #C25B21
Triadic#38C221, #2138C2
Split complementary#21C25B, #2188C2
Tetradic#88C221, #21C2AB, #5B21C2
Tints, shades & saturation
Channel breakdown
R194
G33
B56
Red194 (76.1%)
Green33 (12.9%)
Blue56 (22%)
Hue351.43°
Saturation (HSL)70.93%
Lightness44.51%
Dominant channelRed
Hex per channelR C2 · G 21 · B 38
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Also reads as
C22138 (chemical formula)
- Formula
- 265,899.518 g/mol
- 22138 atoms
C22138 has a molar mass of 265,899.518 g/mol, made up of 22138 atoms across 1 element: 22138 × C.
Molar mass
Molar mass265,899.518 g/mol
Total atoms per molecule22138
Distinct elements1
Mass of one molecule4.4153654 × 10^-19 g
Molecules per gram2.2648182 × 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
C100%
Carbon (C × 22138)265,899.518 g/mol, 100%
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