Recognised as Colour

#CF3345

#CF3345
Red
Dark
Nearest: Crimson

#CF3345 is a red with RGB values 207, 51, 69 and HSL 353°, 62%, 51%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CF3345#CF3345

HEX#CF3345

RGBrgb(207, 51, 69)

RGB (0–1)0.8118, 0.2, 0.2706

RGB percentages81.2%, 20%, 27.1%

HSLhsl(353.1, 61.9%, 50.6%)

HSV / HSBhsv(353.1, 75.4%, 81.2%)

CMYK0%, 75.4%, 66.7%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,579,077

CSS custom property--colour: #CF3345;

Brightness & contrast

Relative luminance0.16063WCAG 2.x, 0 is black and 1 is white

Perceived brightness122 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 4.99:1

Contrast with white4.99:1WCAG normal text: AA

Contrast with black4.21:1WCAG normal text: Fail

Greyscale equivalent#555555

Inverted#30CCBA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#605A44no red cones; affects about 1% of men; ΔE 64.5 from the original

Deuteranopia#877C40no green cones; the most common form, about 1% of men; ΔE 65.6 from the original

Tritanopia#E3003Bno blue cones; rare, and affects men and women equally; ΔE 15.7 from the original

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

Contrast with white, large text4.99:1WCAG large text: AAA

Contrast with black, large text4.21:1WCAG large text: AA

Named colours

Crimson · ΔE 11.7 Firebrick · ΔE 13.7 Brown · ΔE 15 Indian red · ΔE 18.1 Tomato · ΔE 24.3 Dark red · ΔE 25.4

Nearest named CSS colourCrimson (#DC143C)ΔE 11.71, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#33CFBD

Analogous#CF3393, #CF6F33

Triadic#45CF33, #3345CF

Split complementary#33CF6F, #3393CF

Tetradic#93CF33, #33CFBD, #6F33CF

Tints, shades & saturation

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

Lighter +40%#F6D8DC

Lighter +30%#ECAFB6

Lighter +20%#E28690

Lighter +10%#D95C6B

Darker −10%#A82736

Darker −20%#7E1E29

Darker −30%#55141B

Darker −40%#2C0A0E

More saturated +25%#EF142D

Less saturated −25%#B0525D

Channel breakdown

R207

G51

B69

Red207 (81.2%)

Green51 (20%)

Blue69 (27.1%)

Hue353.08°

Saturation (HSL)61.9%

Lightness50.59%

Dominant channelRed

Hex per channelR CF · G 33 · B 45

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Harmonies

Lighter and darker

Similar named colours

Also reads as

CF3345 (chemical formula)

Formula
63,560.321 g/mol
3346 atoms

CF3345 has a molar mass of 63,560.321 g/mol, made up of 3346 atoms across 2 elements: 1 × C, 3345 × F.

Open this reading on its own page →

Molar mass

Molar mass63,560.321 g/mol

Total atoms per molecule3346

Distinct elements2

Mass of one molecule1.055444 × 10^-19 g

Molecules per gram9.4746859 × 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

C0%

F100%

Carbon (C)12.011 g/mol, 0.019%

Fluorine (F × 3345)63,548.31 g/mol, 99.981%

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Elements in this formula

Nerdulate something else

Nothing in mind? Surprise me · today’s page