Recognised as Colour

#C21BB7

#C21BB7
Magenta
Dark
Nearest: Medium orchid

#C21BB7 is a magenta with RGB values 194, 27, 183 and HSL 304°, 76%, 43%. It is a dark colour, so white text on it reaches 5.1:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#C21BB7#C21BB7

HEX#C21BB7

RGBrgb(194, 27, 183)

RGB (0–1)0.7608, 0.1059, 0.7176

RGB percentages76.1%, 10.6%, 71.8%

HSLhsl(304, 75.6%, 43.3%)

HSV / HSBhsv(304, 86.1%, 76.1%)

CMYK0%, 86.1%, 5.7%, 23.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,721,079

CSS custom property--colour: #C21BB7;

Brightness & contrast

Relative luminance0.15672WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.08:1

Contrast with white5.08:1WCAG normal text: AA

Contrast with black4.13:1WCAG normal text: Fail

Greyscale equivalent#4A4A4A

Inverted#3DE448

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0060BBno red cones; affects about 1% of men; ΔE 64.3 from the original

Deuteranopia#5976B3no green cones; the most common form, about 1% of men; ΔE 68.8 from the original

Tritanopia#CA376Dno blue cones; rare, and affects men and women equally; ΔE 48.3 from the original

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

Contrast with white, large text5.08:1WCAG large text: AAA

Contrast with black, large text4.13:1WCAG large text: AA

Named colours

Medium orchid · ΔE 18.4 Dark magenta · ΔE 19.2 Dark orchid · ΔE 20.6 Purple · ΔE 24.2 Orchid · ΔE 27 Medium violet red · ΔE 27.6

Nearest named CSS colourMedium orchid (#BA55D3)ΔE 18.39, a distinctly different colour

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#1BC226

Analogous#791BC2, #C21B64

Triadic#B7C21B, #1BB7C2

Split complementary#64C21B, #1BC279

Tetradic#C2791B, #1BC226, #1B64C2

Tints, shades & saturation

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

Lighter +40%#F5B4F0

Lighter +30%#EE88E8

Lighter +20%#E85BDF

Lighter +10%#E22ED6

Darker −10%#95158D

Darker −20%#680F63

Darker −30%#3C0838

Darker −40%#0F020E

More saturated +25%#DD00CE

Less saturated −25%#A6379F

Channel breakdown

R194

G27

B183

Red194 (76.1%)

Green27 (10.6%)

Blue183 (71.8%)

Hue303.95°

Saturation (HSL)75.57%

Lightness43.33%

Dominant channelRed

Hex per channelR C2 · G 1B · B B7

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Harmonies

Lighter and darker

Similar named colours

Also reads as

C21BB7 (chemical formula)

Formula
338.711 g/mol
29 atoms

C21BB7 has a molar mass of 338.711 g/mol, made up of 29 atoms across 2 elements: 21 × C, 8 × B.

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Molar mass

Molar mass338.711 g/mol

Total atoms per molecule29

Distinct elements2

Mass of one molecule5.6244285 × 10^-22 g

Molecules per gram1.7779584 × 10^21

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

C74.5%

B25.5%

Carbon (C × 21)252.231 g/mol, 74.468%

Boron (B × 8)86.48 g/mol, 25.532%

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