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Recognised as Colour

#658DDE

  • #658DDE
  • Blue
  • Dark
  • Nearest: Cornflower blue

#658DDE is a blue with RGB values 101, 141, 222 and HSL 220°, 65%, 63%. It is a dark colour, so black text on it reaches 6.4:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#658DDE#658DDE
HEX#658DDE
RGBrgb(101, 141, 222)
RGB (0–1)0.3961, 0.5529, 0.8706
RGB percentages39.6%, 55.3%, 87.1%
HSLhsl(220.2, 64.7%, 63.3%)
HSV / HSBhsv(220.2, 54.5%, 87.1%)
CMYK54.5%, 36.5%, 0%, 12.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,655,454
CSS custom property--colour: #658DDE;

Brightness & contrast

Relative luminance0.2709WCAG 2.x, 0 is black and 1 is white
Perceived brightness142.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 6.42:1
Contrast with white3.27:1WCAG normal text: Fail
Contrast with black6.42:1WCAG normal text: AA
Greyscale equivalent#8A8A8A
Inverted#9A7221

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#6C94E1no red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#5D89DCno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#1D9FABno blue cones; rare, and affects men and women equally; ΔE 48.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text3.27:1WCAG large text: AA
Contrast with black, large text6.42:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 4.8Dodgerblue · ΔE 17.9Steel blue · ΔE 20.1Medium purple · ΔE 28Royal blue · ΔE 28.3Deep skyblue · ΔE 30.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 4.75, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DEB665
Analogous#65CADE, #7965DE
Triadic#DE658D, #8DDE65
Split complementary#DE7965, #CADE65
Tetradic#DE65CA, #DEB665, #65DE79

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#FFFFFF
Lighter +30%#E3EAF9
Lighter +20%#B9CBF0
Lighter +10%#8FACE7
Darker −10%#3B6ED5
Darker −20%#2756B6
Darker −30%#1E428C
Darker −40%#152E62
More saturated +25%#4E85F5
Less saturated −25%#7C95C7

Channel breakdown

R101
G141
B222
Red101 (39.6%)
Green141 (55.3%)
Blue222 (87.1%)
Hue220.17°
Saturation (HSL)64.71%
Lightness63.33%
Dominant channelBlue
Hex per channelR 65 · G 8D · B DE

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Every value on this page was computed from “658dde” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.