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Recognised as Colour

#584A83

  • #584A83
  • Blue
  • Dark
  • Nearest: Dark slateblue

#584A83 is a blue with RGB values 88, 74, 131 and HSL 255°, 28%, 40%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#584A83#584A83
HEX#584A83
RGBrgb(88, 74, 131)
RGB (0–1)0.3451, 0.2902, 0.5137
RGB percentages34.5%, 29%, 51.4%
HSLhsl(254.7, 27.8%, 40.2%)
HSV / HSBhsv(254.7, 43.5%, 51.4%)
CMYK32.8%, 43.5%, 0%, 48.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,786,243
CSS custom property--colour: #584A83;

Brightness & contrast

Relative luminance0.08611WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.71:1
Contrast with white7.71:1WCAG normal text: AAA
Contrast with black2.72:1WCAG normal text: Fail
Greyscale equivalent#515151
Inverted#A7B57C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#395385no red cones; affects about 1% of men; ΔE 13.6 from the original
Deuteranopia#3B5282no green cones; the most common form, about 1% of men; ΔE 13.5 from the original
Tritanopia#4E5460no 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 text7.71:1WCAG large text: AAA
Contrast with black, large text2.72:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 14.3Rebecca purple · ΔE 28.9Steel blue · ΔE 29.4Midnight blue · ΔE 30Medium purple · ΔE 33Slate blue · ΔE 33.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 14.32, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#75834A
Analogous#4A5983, #744A83
Triadic#83584A, #4A8358
Split complementary#83744A, #59834A
Tetradic#834A59, #75834A, #4A8374

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C5BEDB
Lighter +30%#A89EC8
Lighter +20%#8B7DB6
Lighter +10%#6E5DA3
Darker −10%#423862
Darker −20%#2C2542
Darker −30%#161321
Darker −40%#000001
More saturated +25%#4B309D
Less saturated −25%#656469

Channel breakdown

R88
G74
B131
Red88 (34.5%)
Green74 (29%)
Blue131 (51.4%)
Hue254.74°
Saturation (HSL)27.8%
Lightness40.2%
Dominant channelBlue
Hex per channelR 58 · G 4A · B 83

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Every value on this page was computed from “584a83” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.