Recognised as Colour

#CF105B

#CF105B
Red
Dark
Nearest: Crimson

#CF105B is a red with RGB values 207, 16, 91 and HSL 336°, 86%, 44%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Crimson.

Colour values

#CF105B#CF105B

HEX#CF105B

RGBrgb(207, 16, 91)

RGB (0–1)0.8118, 0.0627, 0.3569

RGB percentages81.2%, 6.3%, 35.7%

HSLhsl(336.4, 85.7%, 43.7%)

HSV / HSBhsv(336.4, 92.3%, 81.2%)

CMYK0%, 92.3%, 56%, 18.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer13,570,139

CSS custom property--colour: #CF105B;

Brightness & contrast

Relative luminance0.14391WCAG 2.x, 0 is black and 1 is white

Perceived brightness117.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.41:1

Contrast with white5.41:1WCAG normal text: AA

Contrast with black3.88:1WCAG normal text: Fail

Greyscale equivalent#3E3E3E

Inverted#30EFA4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4F535Cno red cones; affects about 1% of men; ΔE 72.1 from the original

Deuteranopia#7E7757no green cones; the most common form, about 1% of men; ΔE 73.1 from the original

Tritanopia#E20037no blue cones; rare, and affects men and women equally; ΔE 26.9 from the original

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

Contrast with white, large text5.41:1WCAG large text: AAA

Contrast with black, large text3.88:1WCAG large text: AA

Named colours

Crimson · ΔE 22.7 Deep pink · ΔE 24.9 Medium violet red · ΔE 26.3 Indian red · ΔE 28.7 Brown · ΔE 29 Hot pink · ΔE 30.5

Nearest named CSS colourCrimson (#DC143C)ΔE 22.65, a distinctly different colour

Hue familyred

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#10CF84

Analogous#CF10BA, #CF2410

Triadic#5BCF10, #105BCF

Split complementary#10CF25, #10BACF

Tetradic#BBCF10, #10CF84, #2510CF

Tints, shades & saturation

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

Lighter +40%#F9B2CE

Lighter +30%#F583B0

Lighter +20%#F25391

Lighter +10%#EE2473

Darker −10%#A00C46

Darker −20%#700931

Darker −30%#41051D

Darker −40%#120108

More saturated +25%#DF0058

Less saturated −25%#B32C61

Channel breakdown

R207

G16

B91

Red207 (81.2%)

Green16 (6.3%)

Blue91 (35.7%)

Hue336.44°

Saturation (HSL)85.65%

Lightness43.73%

Dominant channelRed

Hex per channelR CF · G 10 · B 5B

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

CF105B (chemical formula)

Formula
2,017.611 g/mol
107 atoms

CF105B has a molar mass of 2,017.611 g/mol, made up of 107 atoms across 3 elements: 1 × C, 105 × F, 1 × B.

Open this reading on its own page →

Molar mass

Molar mass2,017.611 g/mol

Total atoms per molecule107

Distinct elements3

Mass of one molecule3.3503219 × 10^-21 g

Molecules per gram2.9847878 × 10^20

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

C0.6%

F98.9%

B0.5%

Carbon (C)12.011 g/mol, 0.595%

Fluorine (F × 105)1,994.79 g/mol, 98.869%

Boron (B)10.81 g/mol, 0.536%

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