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Recognised as Colour

#57308D

  • #57308D
  • Violet
  • Dark
  • Nearest: Rebecca purple

#57308D is a violet with RGB values 87, 48, 141 and HSL 265°, 49%, 37%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Rebecca purple.

Colour values

#57308D#57308D
HEX#57308D
RGBrgb(87, 48, 141)
RGB (0–1)0.3412, 0.1882, 0.5529
RGB percentages34.1%, 18.8%, 55.3%
HSLhsl(265.2, 49.2%, 37.1%)
HSV / HSBhsv(265.2, 66%, 55.3%)
CMYK38.3%, 66%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,714,061
CSS custom property--colour: #57308D;

Brightness & contrast

Relative luminance0.06063WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.49:1
Contrast with white9.49:1WCAG normal text: AAA
Contrast with black2.21:1WCAG normal text: Fail
Greyscale equivalent#3F3F3F
Inverted#A8CF72

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004690no red cones; affects about 1% of men; ΔE 26.2 from the original
Deuteranopia#00458Bno green cones; the most common form, about 1% of men; ΔE 27.6 from the original
Tritanopia#4B455Ano blue cones; rare, and affects men and women equally; ΔE 45.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.49:1WCAG large text: AAA
Contrast with black, large text2.21:1WCAG large text: Fail

Named colours

Rebecca purple · ΔE 6.2Dark slateblue · ΔE 12.4Midnight blue · ΔE 15.7Indigo · ΔE 18.3Slate blue · ΔE 20.2Purple · ΔE 22.7
Nearest named CSS colourRebecca purple (#663399)ΔE 6.22, clearly different but related
Hue familyviolet
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#668D30
Analogous#30388D, #85308D
Triadic#8D5730, #308D57
Split complementary#8D8530, #388D30
Tetradic#8D3038, #668D30, #308D85

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C0A8E1
Lighter +30%#A482D4
Lighter +20%#895CC7
Lighter +10%#6E3DB3
Darker −10%#402367
Darker −20%#281641
Darker −30%#11091B
Darker −40%#000000
More saturated +25%#5318A5
Less saturated −25%#5B4875

Channel breakdown

R87
G48
B141
Red87 (34.1%)
Green48 (18.8%)
Blue141 (55.3%)
Hue265.16°
Saturation (HSL)49.21%
Lightness37.06%
Dominant channelBlue
Hex per channelR 57 · G 30 · B 8D

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Every value on this page was computed from “57308d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.