Recognised as Colour

#BB57CA

#BB57CA
Magenta
Dark
Nearest: Medium orchid

#BB57CA is a magenta with RGB values 187, 87, 202 and HSL 292°, 52%, 57%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Medium orchid.

Colour values

#BB57CA#BB57CA

HEX#BB57CA

RGBrgb(187, 87, 202)

RGB (0–1)0.7333, 0.3412, 0.7922

RGB percentages73.3%, 34.1%, 79.2%

HSLhsl(292.2, 52%, 56.7%)

HSV / HSBhsv(292.2, 56.9%, 79.2%)

CMYK7.4%, 56.9%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,277,706

CSS custom property--colour: #BB57CA;

Brightness & contrast

Relative luminance0.21645WCAG 2.x, 0 is black and 1 is white

Perceived brightness139.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.33:1

Contrast with white3.94:1WCAG normal text: Fail

Contrast with black5.33:1WCAG normal text: AA

Greyscale equivalent#757575

Inverted#44A835

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#4279CEno red cones; affects about 1% of men; ΔE 47.7 from the original

Deuteranopia#6584C7no green cones; the most common form, about 1% of men; ΔE 49.2 from the original

Tritanopia#BD6788no blue cones; rare, and affects men and women equally; ΔE 43.5 from the original

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

Contrast with white, large text3.94:1WCAG large text: AA

Contrast with black, large text5.33:1WCAG large text: AAA

Named colours

Medium orchid · ΔE 5.7 Orchid · ΔE 12.1 Violet · ΔE 16.9 Medium purple · ΔE 21.4 Dark magenta · ΔE 22.1 Dark orchid · ΔE 22.3

Nearest named CSS colourMedium orchid (#BA55D3)ΔE 5.69, clearly different but related

Hue familymagenta

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#66CA57

Analogous#8157CA, #CA57A0

Triadic#CABB57, #57CABB

Split complementary#A0CA57, #57CA82

Tetradic#CA8257, #66CA57, #57A0CA

Tints, shades & saturation

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

Lighter +40%#FAF2FB

Lighter +30%#EACBEF

Lighter +20%#DAA5E2

Lighter +10%#CB7ED6

Darker −10%#A539B5

Darker −20%#812D8E

Darker −30%#5E2167

Darker −40%#3B1441

More saturated +25%#CF3BE6

Less saturated −25%#A773AE

Channel breakdown

R187

G87

B202

Red187 (73.3%)

Green87 (34.1%)

Blue202 (79.2%)

Hue292.17°

Saturation (HSL)52.04%

Lightness56.67%

Dominant channelBlue

Hex per channelR BB · G 57 · B CA

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

BB57Ca (chemical formula)

Formula
667.058 g/mol
59 atoms

BB57Ca has a molar mass of 667.058 g/mol, made up of 59 atoms across 2 elements: 58 × B, 1 × Ca.

Open this reading on its own page →

Molar mass

Molar mass667.058 g/mol

Total atoms per molecule59

Distinct elements2

Mass of one molecule1.1076759 × 10^-21 g

Molecules per gram9.0279118 × 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

B94%

Ca6%

Boron (B × 58)626.98 g/mol, 93.992%

Calcium (Ca)40.078 g/mol, 6.008%

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