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Recognised as Colour

#584DDD

  • #584DDD
  • Blue
  • Dark
  • Nearest: Medium slateblue

#584DDD is a blue with RGB values 88, 77, 221 and HSL 245°, 68%, 58%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#584DDD#584DDD
HEX#584DDD
RGBrgb(88, 77, 221)
RGB (0–1)0.3451, 0.302, 0.8667
RGB percentages34.5%, 30.2%, 86.7%
HSLhsl(244.6, 67.9%, 58.4%)
HSV / HSBhsv(244.6, 65.2%, 86.7%)
CMYK60.2%, 65.2%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,787,101
CSS custom property--colour: #584DDD;

Brightness & contrast

Relative luminance0.12603WCAG 2.x, 0 is black and 1 is white
Perceived brightness106.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.96:1
Contrast with white5.96:1WCAG normal text: AA
Contrast with black3.52:1WCAG normal text: Fail
Greyscale equivalent#5A5A5A
Inverted#A7B222

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069E1no red cones; affects about 1% of men; ΔE 24.4 from the original
Deuteranopia#005EDAno green cones; the most common form, about 1% of men; ΔE 19.5 from the original
Tritanopia#00728Eno blue cones; rare, and affects men and women equally; ΔE 79.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.96:1WCAG large text: AAA
Contrast with black, large text3.52:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 12.8Slate blue · ΔE 17.4Royal blue · ΔE 21.1Dark orchid · ΔE 23.2Blue violet · ΔE 24.6Rebecca purple · ΔE 26.8
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 12.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D2DD4D
Analogous#4D8ADD, #A04DDD
Triadic#DD584D, #4DDD58
Split complementary#DDA04D, #8ADD4D
Tetradic#DD4D8A, #D2DD4D, #4DDDA0

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#F9F8FE
Lighter +30%#D1CDF6
Lighter +20%#A8A3ED
Lighter +10%#8078E5
Darker −10%#3428CF
Darker −20%#2A1FA5
Darker −30%#1F177A
Darker −40%#140F4F
More saturated +25%#4233F8
Less saturated −25%#6E68C3

Channel breakdown

R88
G77
B221
Red88 (34.5%)
Green77 (30.2%)
Blue221 (86.7%)
Hue244.58°
Saturation (HSL)67.92%
Lightness58.43%
Dominant channelBlue
Hex per channelR 58 · G 4D · B DD

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