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Recognised as Colour

#571DD9

  • #571DD9
  • Violet
  • Dark
  • Nearest: Medium blue

#571DD9 is a violet with RGB values 87, 29, 217 and HSL 259°, 76%, 48%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#571DD9#571DD9
HEX#571DD9
RGBrgb(87, 29, 217)
RGB (0–1)0.3412, 0.1137, 0.851
RGB percentages34.1%, 11.4%, 85.1%
HSLhsl(258.5, 76.4%, 48.2%)
HSV / HSBhsv(258.5, 86.6%, 85.1%)
CMYK59.9%, 86.6%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,709,273
CSS custom property--colour: #571DD9;

Brightness & contrast

Relative luminance0.07915WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.13:1
Contrast with white8.13:1WCAG normal text: AAA
Contrast with black2.58:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#A8E226

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0054DEno red cones; affects about 1% of men; ΔE 34 from the original
Deuteranopia#004AD6no green cones; the most common form, about 1% of men; ΔE 30.1 from the original
Tritanopia#005C81no blue cones; rare, and affects men and women equally; ΔE 94.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.13:1WCAG large text: AAA
Contrast with black, large text2.58:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11.9Blue violet · ΔE 12.7Dark violet · ΔE 17.5Dark orchid · ΔE 25.4Blue · ΔE 27.4Dark blue · ΔE 29
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.85, a distinctly different colour
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9FD91D
Analogous#1D41D9, #B51DD9
Triadic#D9571D, #1DD957
Split complementary#D9B51D, #41D91D
Tetradic#D91D41, #9FD91D, #1DD9B5

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D8CAF8
Lighter +30%#B79DF2
Lighter +20%#9670EC
Lighter +10%#7543E6
Darker −10%#4517AC
Darker −20%#33117F
Darker −30%#210B52
Darker −40%#0F0525
More saturated +25%#4C00F6
Less saturated −25%#633CBA

Channel breakdown

R87
G29
B217
Red87 (34.1%)
Green29 (11.4%)
Blue217 (85.1%)
Hue258.51°
Saturation (HSL)76.42%
Lightness48.24%
Dominant channelBlue
Hex per channelR 57 · G 1D · B D9

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Every value on this page was computed from “571dd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.