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Recognised as Colour

#58578D

  • #58578D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#58578D is a blue with RGB values 88, 87, 141 and HSL 241°, 24%, 45%. It is a dark colour, so white text on it reaches 6.6:1 contrast (AA for normal text). The nearest named colour is Dark slateblue.

Colour values

#58578D#58578D
HEX#58578D
RGBrgb(88, 87, 141)
RGB (0–1)0.3451, 0.3412, 0.5529
RGB percentages34.5%, 34.1%, 55.3%
HSLhsl(241.1, 23.7%, 44.7%)
HSV / HSBhsv(241.1, 38.3%, 55.3%)
CMYK37.6%, 38.3%, 0%, 44.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,789,581
CSS custom property--colour: #58578D;

Brightness & contrast

Relative luminance0.10814WCAG 2.x, 0 is black and 1 is white
Perceived brightness95 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.64:1
Contrast with white6.64:1WCAG normal text: AA
Contrast with black3.16:1WCAG normal text: Fail
Greyscale equivalent#5B5B5B
Inverted#A7A872

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#465E8Fno red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#445B8Cno green cones; the most common form, about 1% of men; ΔE 8.3 from the original
Tritanopia#4A616Bno blue cones; rare, and affects men and women equally; ΔE 29.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text6.64:1WCAG large text: AAA
Contrast with black, large text3.16:1WCAG large text: AA

Named colours

Dark slateblue · ΔE 19Steel blue · ΔE 22.7Slate grey · ΔE 28.7Light slate grey · ΔE 30Cornflower blue · ΔE 30.3Dim grey · ΔE 33.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8C8D57
Analogous#57718D, #73578D
Triadic#8D5857, #578D58
Split complementary#8D7357, #718D57
Tetradic#8D5771, #8C8D57, #578D73

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#CFCFE1
Lighter +30%#B0AFCE
Lighter +20%#9090BA
Lighter +10%#7170A7
Darker −10%#44446D
Darker −20%#31304E
Darker −30%#1D1D2E
Darker −40%#09090F
More saturated +25%#3D3BAA
Less saturated −25%#727272

Channel breakdown

R88
G87
B141
Red88 (34.5%)
Green87 (34.1%)
Blue141 (55.3%)
Hue241.11°
Saturation (HSL)23.68%
Lightness44.71%
Dominant channelBlue
Hex per channelR 58 · G 57 · B 8D

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Every value on this page was computed from “58578d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.