Recognised as Colour

#57287D

#57287D
Violet
Dark
Nearest: Rebecca purple

#57287D is a violet with RGB values 87, 40, 125 and HSL 273°, 52%, 32%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#57287D#57287D

HEX#57287D

RGBrgb(87, 40, 125)

RGB (0–1)0.3412, 0.1569, 0.4902

RGB percentages34.1%, 15.7%, 49%

HSLhsl(273.2, 51.5%, 32.4%)

HSV / HSBhsv(273.2, 68%, 49%)

CMYK30.4%, 68%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer5,711,997

CSS custom property--colour: #57287D;

Brightness & contrast

Relative luminance0.05024WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.47:1

Contrast with white10.47:1WCAG normal text: AAA

Contrast with black2:1WCAG normal text: Fail

Greyscale equivalent#383838

Inverted#A8D782

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003E80no red cones; affects about 1% of men; ΔE 27.7 from the original

Deuteranopia#13407Bno green cones; the most common form, about 1% of men; ΔE 29.8 from the original

Tritanopia#513A4Fno blue cones; rare, and affects men and women equally; ΔE 39.1 from the original

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

Contrast with white, large text10.47:1WCAG large text: AAA

Contrast with black, large text2:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 10.7 Dark slateblue · ΔE 12.9 Midnight blue · ΔE 16 Indigo · ΔE 20.2 Purple · ΔE 21.3 Dark magenta · ΔE 25.1

Nearest named CSS colourRebecca purple (#663399)ΔE 10.7, a distinctly different colour

Hue familyviolet

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#4E7D28

Analogous#2D287D, #7D2878

Triadic#7D5728, #287D57

Split complementary#787D28, #287D2D

Tetradic#7D2D28, #4E7D28, #28787D

Tints, shades & saturation

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

Lighter +40%#BC94DD

Lighter +30%#A46ED0

Lighter +20%#8C47C4

Lighter +10%#7234A4

Darker −10%#3C1C56

Darker −20%#210F30

Darker −30%#060309

Darker −40%#000000

More saturated +25%#591392

Less saturated −25%#553D68

Channel breakdown

R87

G40

B125

Red87 (34.1%)

Green40 (15.7%)

Blue125 (49%)

Hue273.18°

Saturation (HSL)51.52%

Lightness32.35%

Dominant channelBlue

Hex per channelR 57 · G 28 · B 7D

Keep nerding

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#57287D

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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