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Recognised as Colour

#3588D8

  • #3588D8
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3588D8 is a blue with RGB values 53, 136, 216 and HSL 209°, 68%, 53%. It is a dark colour, so black text on it reaches 5.7:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3588D8#3588D8
HEX#3588D8
RGBrgb(53, 136, 216)
RGB (0–1)0.2078, 0.5333, 0.8471
RGB percentages20.8%, 53.3%, 84.7%
HSLhsl(209.4, 67.6%, 52.7%)
HSV / HSBhsv(209.4, 75.5%, 84.7%)
CMYK75.5%, 37%, 0%, 15.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,508,440
CSS custom property--colour: #3588D8;

Brightness & contrast

Relative luminance0.23323WCAG 2.x, 0 is black and 1 is white
Perceived brightness130.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundBlackcontrast 5.66:1
Contrast with white3.71:1WCAG normal text: Fail
Contrast with black5.66:1WCAG normal text: AA
Greyscale equivalent#7C7C7C
Inverted#CA7727

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#638DDBno red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#4A7ED6no green cones; the most common form, about 1% of men; ΔE 9 from the original
Tritanopia#009BA6no blue cones; rare, and affects men and women equally; ΔE 45.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text3.71:1WCAG large text: AA
Contrast with black, large text5.66:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 9.7Steel blue · ΔE 17.4Dodgerblue · ΔE 17.6Deep skyblue · ΔE 26.9Royal blue · ΔE 30.5Light skyblue · ΔE 33.9
Nearest named CSS colourCornflower blue (#6495ED)ΔE 9.68, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D88535
Analogous#35D8D6, #3537D8
Triadic#D83588, #88D835
Split complementary#D83537, #D8D635
Tetradic#D635D8, #D88535, #37D835

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E0EDF9
Lighter +30%#B5D4F1
Lighter +20%#8ABAE9
Lighter +10%#60A1E0
Darker −10%#236EB7
Darker −20%#1B558C
Darker −30%#133B61
Darker −40%#0B2136
More saturated +25%#1789F6
Less saturated −25%#5387BA

Channel breakdown

R53
G136
B216
Red53 (20.8%)
Green136 (53.3%)
Blue216 (84.7%)
Hue209.45°
Saturation (HSL)67.63%
Lightness52.75%
Dominant channelBlue
Hex per channelR 35 · G 88 · B D8

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Every value on this page was computed from “3588d8” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.