Recognised as Colour
#C21127
- #C21127
- Red
- Dark
- Nearest: Firebrick
#C21127 is a red with RGB values 194, 17, 39 and HSL 353°, 84%, 41%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Firebrick.
Colour values
#C21127#C21127
HEX#C21127
RGBrgb(194, 17, 39)
RGB (0–1)0.7608, 0.0667, 0.1529
RGB percentages76.1%, 6.7%, 15.3%
HSLhsl(352.5, 83.9%, 41.4%)
HSV / HSBhsv(352.5, 91.2%, 76.1%)
CMYK0%, 91.2%, 79.9%, 23.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,718,375
CSS custom property--colour: #C21127;
Brightness & contrast
Relative luminance0.12017WCAG 2.x, 0 is black and 1 is white
Perceived brightness107.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.17:1
Contrast with white6.17:1WCAG normal text: AA
Contrast with black3.4:1WCAG normal text: Fail
Greyscale equivalent#383838
Inverted#3DEED8
Colour vision & accessibility
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.17:1WCAG large text: AAA
Contrast with black, large text3.4:1WCAG large text: AA
Named colours
Hue familyred
CSS keyword usableNo exact keyword
Colour harmonies
Complementary#11C2AC
Analogous#C2117F, #C25411
Triadic#27C211, #1127C2
Split complementary#11C254, #117FC2
Tetradic#7FC211, #11C2AC, #5411C2
Tints, shades & saturation
Channel breakdown
R194
G17
B39
Red194 (76.1%)
Green17 (6.7%)
Blue39 (15.3%)
Hue352.54°
Saturation (HSL)83.89%
Lightness41.37%
Dominant channelRed
Hex per channelR C2 · G 11 · B 27
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Also reads as
C21127 (chemical formula)
- Formula
- 253,756.397 g/mol
- 21127 atoms
C21127 has a molar mass of 253,756.397 g/mol, made up of 21127 atoms across 1 element: 21127 × C.
Molar mass
Molar mass253,756.397 g/mol
Total atoms per molecule21127
Distinct elements1
Mass of one molecule4.2137241 × 10^-19 g
Molecules per gram2.3731976 × 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 × 21127)253,756.397 g/mol, 100%
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