Recognised as Colour

#C66666

#C66666
Red
Dark
Nearest: Indian red

#C66666 is a red with RGB values 198, 102, 102 and HSL 0°, 46%, 59%. It is a dark colour, so black text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Indian red.

Colour values

#C66666#C66666

HEX#C66666

RGBrgb(198, 102, 102)

RGB (0–1)0.7765, 0.4, 0.4

RGB percentages77.6%, 40%, 40%

HSLhsl(0, 45.7%, 58.8%)

HSV / HSBhsv(0, 48.5%, 77.6%)

CMYK0%, 48.5%, 48.5%, 22.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,002,342

CSS custom property--colour: #C66666;

Brightness & contrast

Relative luminance0.22468WCAG 2.x, 0 is black and 1 is white

Perceived brightness137.9 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#7A7A7A

Inverted#399999

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#7B7665no red cones; affects about 1% of men; ΔE 40.3 from the original

Deuteranopia#938A64no green cones; the most common form, about 1% of men; ΔE 41.2 from the original

Tritanopia#D65967no blue cones; rare, and affects men and women equally; ΔE 12.2 from the original

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

Indian red · ΔE 8.2 Light coral · ΔE 12.7 Salmon · ΔE 18.6 Pale violetred · ΔE 19.7 Dark salmon · ΔE 20.9 Sienna · ΔE 22.7

Nearest named CSS colourIndian red (#CD5C5C)ΔE 8.17, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#66C6C6

Analogous#C66696, #C69666

Triadic#66C666, #6666C6

Split complementary#66C696, #6696C6

Tetradic#96C666, #66C6C6, #9666C6

Tints, shades & saturation

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

Lighter +40%#FDFBFB

Lighter +30%#F0D5D5

Lighter +20%#E2B0B0

Lighter +10%#D48B8B

Darker −10%#B54444

Darker −20%#903636

Darker −30%#6B2828

Darker −40%#461A1A

More saturated +25%#E04C4C

Less saturated −25%#AC8080

Channel breakdown

R198

G102

B102

Red198 (77.6%)

Green102 (40%)

Blue102 (40%)

Hue0°

Saturation (HSL)45.71%

Lightness58.82%

Dominant channelRed

Hex per channelR C6 · G 66 · B 66

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C66666 (chemical formula)

Formula
800,725.326 g/mol
66666 atoms

C66666 has a molar mass of 800,725.326 g/mol, made up of 66666 atoms across 1 element: 66666 × C.

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Molar mass

Molar mass800,725.326 g/mol

Total atoms per molecule66666

Distinct elements1

Mass of one molecule1.3296357 × 10^-18 g

Molecules per gram7.5208571 × 10^17

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 × 66666)800,725.326 g/mol, 100%

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Elements in this formula

Carbon

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