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Recognised as Colour

#584BCD

  • #584BCD
  • Blue
  • Dark
  • Nearest: Slate blue

#584BCD is a blue with RGB values 88, 75, 205 and HSL 246°, 57%, 55%. It is a dark colour, so white text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#584BCD#584BCD
HEX#584BCD
RGBrgb(88, 75, 205)
RGB (0–1)0.3451, 0.2941, 0.8039
RGB percentages34.5%, 29.4%, 80.4%
HSLhsl(246, 56.5%, 54.9%)
HSV / HSBhsv(246, 63.4%, 80.4%)
CMYK57.1%, 63.4%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,786,573
CSS custom property--colour: #584BCD;

Brightness & contrast

Relative luminance0.11515WCAG 2.x, 0 is black and 1 is white
Perceived brightness102 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.36:1
Contrast with white6.36:1WCAG normal text: AA
Contrast with black3.3:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#A7B432

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0064D1no red cones; affects about 1% of men; ΔE 23.4 from the original
Deuteranopia#005BCAno green cones; the most common form, about 1% of men; ΔE 20 from the original
Tritanopia#166B85no blue cones; rare, and affects men and women equally; ΔE 71.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.36:1WCAG large text: AAA
Contrast with black, large text3.3:1WCAG large text: AA

Named colours

Slate blue · ΔE 10.9Medium slateblue · ΔE 11.7Royal blue · ΔE 17Rebecca purple · ΔE 20.2Medium purple · ΔE 21.9Dark orchid · ΔE 24.5
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 10.88, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C0CD4B
Analogous#4B7FCD, #994BCD
Triadic#CD584B, #4BCD58
Split complementary#CD994B, #7FCD4B
Tetradic#CD4B7F, #C0CD4B, #4BCD99

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ECEBF9
Lighter +30%#C7C3EE
Lighter +20%#A29BE3
Lighter +10%#7D73D8
Darker −10%#3F32B3
Darker −20%#31278B
Darker −30%#231C63
Darker −40%#15113B
More saturated +25%#412EEA
Less saturated −25%#6F68B0

Channel breakdown

R88
G75
B205
Red88 (34.5%)
Green75 (29.4%)
Blue205 (80.4%)
Hue246°
Saturation (HSL)56.52%
Lightness54.9%
Dominant channelBlue
Hex per channelR 58 · G 4B · B CD

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