Recognised as Colour

#CF322B

#CF322B
Red
Dark
Nearest: Firebrick

#CF322B is a red with RGB values 207, 50, 43 and HSL 3°, 66%, 49%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Firebrick.

Colour values

#CF322B#CF322B

HEX#CF322B

RGBrgb(207, 50, 43)

RGB (0–1)0.8118, 0.1961, 0.1686

RGB percentages81.2%, 19.6%, 16.9%

HSLhsl(2.6, 65.6%, 49%)

HSV / HSBhsv(2.6, 79.2%, 81.2%)

CMYK0%, 75.8%, 79.2%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,578,795

CSS custom property--colour: #CF322B;

Brightness & contrast

Relative luminance0.15721WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.07:1

Contrast with white5.07:1WCAG normal text: AA

Contrast with black4.14:1WCAG normal text: Fail

Greyscale equivalent#535353

Inverted#30CDD4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#635928no red cones; affects about 1% of men; ΔE 64.9 from the original

Deuteranopia#897B24no green cones; the most common form, about 1% of men; ΔE 65.3 from the original

Tritanopia#E40032no blue cones; rare, and affects men and women equally; ΔE 14.4 from the original

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

Contrast with white, large text5.07:1WCAG large text: AAA

Contrast with black, large text4.14:1WCAG large text: AA

Named colours

Firebrick · ΔE 9.7 Crimson · ΔE 13.8 Tomato · ΔE 16.3 Brown · ΔE 18 Dark red · ΔE 20.6 Maroon · ΔE 24.6

Nearest named CSS colourFirebrick (#B22222)ΔE 9.66, clearly different but related

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#2BC8CF

Analogous#CF2B76, #CF842B

Triadic#2BCF32, #322BCF

Split complementary#2BCF84, #2B76CF

Tetradic#76CF2B, #2BC8CF, #842BCF

Tints, shades & saturation

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

Lighter +40%#F5D2D1

Lighter +30%#EDA9A6

Lighter +20%#E4817C

Lighter +10%#DB5852

Darker −10%#A52822

Darker −20%#7B1E19

Darker −30%#501311

Darker −40%#260908

More saturated +25%#EE150C

Less saturated −25%#B04F4A

Channel breakdown

R207

G50

B43

Red207 (81.2%)

Green50 (19.6%)

Blue43 (16.9%)

Hue2.56°

Saturation (HSL)65.6%

Lightness49.02%

Dominant channelRed

Hex per channelR CF · G 32 · B 2B

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Harmonies

Lighter and darker

Similar named colours

Also reads as

CF322B (chemical formula)

Formula
6,140.177 g/mol
324 atoms

CF322B has a molar mass of 6,140.177 g/mol, made up of 324 atoms across 3 elements: 1 × C, 322 × F, 1 × B.

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Molar mass

Molar mass6,140.177 g/mol

Total atoms per molecule324

Distinct elements3

Mass of one molecule1.0196004 × 10^-20 g

Molecules per gram9.8077641 × 10^19

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

C0.2%

F99.6%

B0.2%

Carbon (C)12.011 g/mol, 0.196%

Fluorine (F × 322)6,117.356 g/mol, 99.628%

Boron (B)10.81 g/mol, 0.176%

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