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Recognised as Colour

#565BD9

  • #565BD9
  • Blue
  • Dark
  • Nearest: Slate blue

#565BD9 is a blue with RGB values 86, 91, 217 and HSL 238°, 63%, 59%. It is a dark colour, so white text on it reaches 5.4:1 contrast (AA for normal text). The nearest named colour is Slate blue.

Colour values

#565BD9#565BD9
HEX#565BD9
RGBrgb(86, 91, 217)
RGB (0–1)0.3373, 0.3569, 0.851
RGB percentages33.7%, 35.7%, 85.1%
HSLhsl(237.7, 63.3%, 59.4%)
HSV / HSBhsv(237.7, 60.4%, 85.1%)
CMYK60.4%, 58.1%, 0%, 14.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer5,659,609
CSS custom property--colour: #565BD9;

Brightness & contrast

Relative luminance0.1447WCAG 2.x, 0 is black and 1 is white
Perceived brightness111.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.39:1
Contrast with white5.39:1WCAG normal text: AA
Contrast with black3.89:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#A9A426

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0070DDno red cones; affects about 1% of men; ΔE 20.2 from the original
Deuteranopia#0065D6no green cones; the most common form, about 1% of men; ΔE 15.5 from the original
Tritanopia#007991no blue cones; rare, and affects men and women equally; ΔE 70.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.39:1WCAG large text: AAA
Contrast with black, large text3.89:1WCAG large text: AA

Named colours

Slate blue · ΔE 7.7Medium slateblue · ΔE 9.2Royal blue · ΔE 9.6Medium purple · ΔE 18.4Rebecca purple · ΔE 23.1Dark slateblue · ΔE 28.8
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 7.69, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D9D456
Analogous#569DD9, #9356D9
Triadic#D9565B, #5BD956
Split complementary#D99356, #9DD956
Tetradic#D9569D, #D9D456, #56D993

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FDFDFE
Lighter +30%#D3D4F5
Lighter +20%#A9ACEC
Lighter +10%#8083E2
Darker −10%#2E34CE
Darker −20%#252AA4
Darker −30%#1C1F7A
Darker −40%#121551
More saturated +25%#3C43F3
Less saturated −25%#7073BF

Channel breakdown

R86
G91
B217
Red86 (33.7%)
Green91 (35.7%)
Blue217 (85.1%)
Hue237.71°
Saturation (HSL)63.29%
Lightness59.41%
Dominant channelBlue
Hex per channelR 56 · G 5B · B D9

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Every value on this page was computed from “565bd9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.