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Colour

#57177D

  • #57177D
  • Violet
  • Dark
  • Nearest: Rebecca purple

#57177D is a violet with RGB values 87, 23, 125 and HSL 278°, 69%, 29%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#57177D#57177D
HEX#57177D
RGBrgb(87, 23, 125)
RGB (0–1)0.3412, 0.0902, 0.4902
RGB percentages34.1%, 9%, 49%
HSLhsl(277.6, 68.9%, 29%)
HSV / HSBhsv(277.6, 81.6%, 49%)
CMYK30.4%, 81.6%, 0%, 51%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,707,645
CSS custom property--colour: #57177D;

Brightness & contrast

Relative luminance0.0412WCAG 2.x, 0 is black and 1 is white
Perceived brightness66 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.51:1
Contrast with white11.51:1WCAG normal text: AAA
Contrast with black1.82:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#A8E882

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003780no red cones; affects about 1% of men; ΔE 30.4 from the original
Deuteranopia#003A7Bno green cones; the most common form, about 1% of men; ΔE 34.8 from the original
Tritanopia#51314Ano blue cones; rare, and affects men and women equally; ΔE 44 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.51:1WCAG large text: AAA
Contrast with black, large text1.82:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 9.8Indigo · ΔE 11.4Purple · ΔE 16.2Midnight blue · ΔE 17.2Dark magenta · ΔE 19.5Dark slateblue · ΔE 21
Nearest named CSS colourRebecca purple (#663399)ΔE 9.79, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#3D7D17
Analogous#24177D, #7D1770
Triadic#7D5717, #177D57
Split complementary#707D17, #177D24
Tetradic#7D2417, #3D7D17, #17707D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BE7AE6
Lighter +30%#A94EDF
Lighter +20%#9327D3
Lighter +10%#751FA8
Darker −10%#390F52
Darker −20%#1B0727
Darker −30%#000000
Darker −40%#000000
More saturated +25%#5C0490
Less saturated −25%#52296A

Channel breakdown

R87
G23
B125
Red87 (34.1%)
Green23 (9%)
Blue125 (49%)
Hue277.65°
Saturation (HSL)68.92%
Lightness29.02%
Dominant channelBlue
Hex per channelR 57 · G 17 · B 7D

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Every value on this page was computed from “57177d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.