Recognised as Colour

#C21B71

#C21B71
Magenta
Dark
Nearest: Medium violet red

#C21B71 is a magenta with RGB values 194, 27, 113 and HSL 329°, 76%, 43%. It is a dark colour, so white text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Medium violet red.

Colour values

#C21B71#C21B71

HEX#C21B71

RGBrgb(194, 27, 113)

RGB (0–1)0.7608, 0.1059, 0.4431

RGB percentages76.1%, 10.6%, 44.3%

HSLhsl(329.1, 75.6%, 43.3%)

HSV / HSBhsv(329.1, 86.1%, 76.1%)

CMYK0%, 86.1%, 41.8%, 23.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,721,009

CSS custom property--colour: #C21B71;

Brightness & contrast

Relative luminance0.13445WCAG 2.x, 0 is black and 1 is white

Perceived brightness114.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.69:1

Contrast with white5.69:1WCAG normal text: AA

Contrast with black3.69:1WCAG normal text: Fail

Greyscale equivalent#454545

Inverted#3DE48E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#455373no red cones; affects about 1% of men; ΔE 65.7 from the original

Deuteranopia#73716Dno green cones; the most common form, about 1% of men; ΔE 67.4 from the original

Tritanopia#D20045no blue cones; rare, and affects men and women equally; ΔE 29.7 from the original

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

Contrast with white, large text5.69:1WCAG large text: AAA

Contrast with black, large text3.69:1WCAG large text: AA

Named colours

Medium violet red · ΔE 11.1 Deep pink · ΔE 21.7 Hot pink · ΔE 22.9 Pale violetred · ΔE 27.9 Purple · ΔE 35.3 Dark magenta · ΔE 35.7

Nearest named CSS colourMedium violet red (#C71585)ΔE 11.12, a distinctly different colour

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BC26C

Analogous#C01BC2, #C21B1D

Triadic#71C21B, #1B71C2

Split complementary#1DC21B, #1BC2C0

Tetradic#C2C01B, #1BC26C, #1B1DC2

Tints, shades & saturation

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

Lighter +40%#F5B4D5

Lighter +30%#EE88BD

Lighter +20%#E85BA4

Lighter +10%#E22E8B

Darker −10%#951557

Darker −20%#680F3D

Darker −30%#3C0823

Darker −40%#0F0209

More saturated +25%#DD0072

Less saturated −25%#A63770

Channel breakdown

R194

G27

B113

Red194 (76.1%)

Green27 (10.6%)

Blue113 (44.3%)

Hue329.1°

Saturation (HSL)75.57%

Lightness43.33%

Dominant channelRed

Hex per channelR C2 · G 1B · B 71

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C21B71 (chemical formula)

Formula
1,019.741 g/mol
92 atoms

C21B71 has a molar mass of 1,019.741 g/mol, made up of 92 atoms across 2 elements: 21 × C, 71 × B.

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Molar mass

Molar mass1,019.741 g/mol

Total atoms per molecule92

Distinct elements2

Mass of one molecule1.6933198 × 10^-21 g

Molecules per gram5.9055591 × 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

C24.7%

B75.3%

Carbon (C × 21)252.231 g/mol, 24.735%

Boron (B × 71)767.51 g/mol, 75.265%

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