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Colour

#6583DE

  • #6583DE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#6583DE is a blue with RGB values 101, 131, 222 and HSL 225°, 65%, 63%. It is a dark colour, so black text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#6583DE#6583DE
HEX#6583DE
RGBrgb(101, 131, 222)
RGB (0–1)0.3961, 0.5137, 0.8706
RGB percentages39.6%, 51.4%, 87.1%
HSLhsl(225.1, 64.7%, 63.3%)
HSV / HSBhsv(225.1, 54.5%, 87.1%)
CMYK54.5%, 41%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,652,894
CSS custom property--colour: #6583DE;

Brightness & contrast

Relative luminance0.24273WCAG 2.x, 0 is black and 1 is white
Perceived brightness136.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.85:1
Contrast with white3.59:1WCAG normal text: Fail
Contrast with black5.85:1WCAG normal text: AA
Greyscale equivalent#838383
Inverted#9A7C21

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5D8DE2no red cones; affects about 1% of men; ΔE 7 from the original
Deuteranopia#4E82DCno green cones; the most common form, about 1% of men; ΔE 4.9 from the original
Tritanopia#2197A6no blue cones; rare, and affects men and women equally; ΔE 52.7 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.59:1WCAG large text: AA
Contrast with black, large text5.85:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.3Dodgerblue · ΔE 15Royal blue · ΔE 20.7Medium purple · ΔE 21.4Slate blue · ΔE 24.7Steel blue · ΔE 26.6
Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.27, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEC065
Analogous#65C0DE, #8365DE
Triadic#DE6583, #83DE65
Split complementary#DE8365, #C0DE65
Tetradic#DE65C0, #DEC065, #65DE83

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E3E8F9
Lighter +20%#B9C7F0
Lighter +10%#8FA5E7
Darker −10%#3B61D5
Darker −20%#274AB6
Darker −30%#1E398C
Darker −40%#152862
More saturated +25%#4E77F5
Less saturated −25%#7C8FC7

Channel breakdown

R101
G131
B222
Red101 (39.6%)
Green131 (51.4%)
Blue222 (87.1%)
Hue225.12°
Saturation (HSL)64.71%
Lightness63.33%
Dominant channelBlue
Hex per channelR 65 · G 83 · B DE

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Every value on this page was computed from “6583de” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.