Recognised as Colour

#C6091F

#C6091F
Red
Dark
Nearest: Firebrick

#C6091F is a red with RGB values 198, 9, 31 and HSL 353°, 91%, 41%. It is a dark colour, so white text on it reaches 6.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#C6091F#C6091F

HEX#C6091F

RGBrgb(198, 9, 31)

RGB (0–1)0.7765, 0.0353, 0.1216

RGB percentages77.6%, 3.5%, 12.2%

HSLhsl(353, 91.3%, 40.6%)

HSV / HSBhsv(353, 95.5%, 77.6%)

CMYK0%, 95.5%, 84.3%, 22.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,978,463

CSS custom property--colour: #C6091F;

Brightness & contrast

Relative luminance0.123WCAG 2.x, 0 is black and 1 is white

Perceived brightness109 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.07:1

Contrast with white6.07:1WCAG normal text: AA

Contrast with black3.46:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#39F6E0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#534A1Dno red cones; affects about 1% of men; ΔE 70.9 from the original

Deuteranopia#7D7013no green cones; the most common form, about 1% of men; ΔE 71.2 from the original

Tritanopia#DB0017no blue cones; rare, and affects men and women equally; ΔE 11.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text6.07:1WCAG large text: AAA

Contrast with black, large text3.46:1WCAG large text: AA

Named colours

Firebrick · ΔE 11.6 Crimson · ΔE 12.1 Dark red · ΔE 20.1 Brown · ΔE 20.9 Tomato · ΔE 22.2 Maroon · ΔE 24.5

Nearest named CSS colourFirebrick (#B22222)ΔE 11.57, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#09C6B0

Analogous#C6097D, #C65109

Triadic#1FC609, #091FC6

Split complementary#09C652, #097DC6

Tetradic#7EC609, #09C6B0, #5209C6

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#FBA0AB

Lighter +30%#F8707F

Lighter +20%#F63F54

Lighter +10%#F40E29

Darker −10%#950717

Darker −20%#640510

Darker −30%#340208

Darker −40%#030000

More saturated +25%#CF0018

Less saturated −25%#AC2333

Channel breakdown

R198

B31

Red198 (77.6%)

Green9 (3.5%)

Blue31 (12.2%)

Hue353.02°

Saturation (HSL)91.3%

Lightness40.59%

Dominant channelRed

Hex per channelR C6 · G 09 · B 1F

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C6091F (chemical formula)

Formula
73,177.999 g/mol
6092 atoms

C6091F has a molar mass of 73,177.999 g/mol, made up of 6092 atoms across 2 elements: 6091 × C, 1 × F.

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Molar mass

Molar mass73,177.999 g/mol

Total atoms per molecule6092

Distinct elements2

Mass of one molecule1.2151493 × 10^-19 g

Molecules per gram8.2294417 × 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%

F0%

Carbon (C × 6091)73,159.001 g/mol, 99.974%

Fluorine (F)18.998 g/mol, 0.026%

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