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Recognised as Colour

#3665AF

  • #3665AF
  • Blue
  • Dark
  • Nearest: Cornflower blue

#3665AF is a blue with RGB values 54, 101, 175 and HSL 217°, 53%, 45%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#3665AF#3665AF
HEX#3665AF
RGBrgb(54, 101, 175)
RGB (0–1)0.2118, 0.3961, 0.6863
RGB percentages21.2%, 39.6%, 68.6%
HSLhsl(216.7, 52.8%, 44.9%)
HSV / HSBhsv(216.7, 69.1%, 68.6%)
CMYK69.1%, 42.3%, 0%, 31.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,564,975
CSS custom property--colour: #3665AF;

Brightness & contrast

Relative luminance0.13187WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.77:1
Contrast with white5.77:1WCAG normal text: AA
Contrast with black3.64:1WCAG normal text: Fail
Greyscale equivalent#606060
Inverted#C99A50

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#426CB2no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#2E60ADno green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#007681no blue cones; rare, and affects men and women equally; ΔE 44.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.77:1WCAG large text: AAA
Contrast with black, large text3.64:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 19.6Steel blue · ΔE 20.1Dark slateblue · ΔE 21.1Dodgerblue · ΔE 25.2Royal blue · ΔE 27.6Slate blue · ΔE 30.3
Nearest named CSS colourCornflower blue (#6495ED)ΔE 19.56, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AF8036
Analogous#36A1AF, #4436AF
Triadic#AF3665, #65AF36
Split complementary#AF4436, #A2AF36
Tetradic#AF36A1, #AF8036, #36AF44

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C4D4ED
Lighter +30%#9DB7E1
Lighter +20%#769BD5
Lighter +10%#4F7EC9
Darker −10%#2A4F88
Darker −20%#1E3861
Darker −30%#12223A
Darker −40%#060B13
More saturated +25%#195FCC
Less saturated −25%#536B92

Channel breakdown

R54
G101
B175
Red54 (21.2%)
Green101 (39.6%)
Blue175 (68.6%)
Hue216.69°
Saturation (HSL)52.84%
Lightness44.9%
Dominant channelBlue
Hex per channelR 36 · G 65 · B AF

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Every value on this page was computed from “3665af” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.