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Recognised as Colour

#3650B4

  • #3650B4
  • Blue
  • Dark
  • Nearest: Royal blue

#3650B4 is a blue with RGB values 54, 80, 180 and HSL 228°, 54%, 46%. It is a dark colour, so white text on it reaches 7.1:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#3650B4#3650B4
HEX#3650B4
RGBrgb(54, 80, 180)
RGB (0–1)0.2118, 0.3137, 0.7059
RGB percentages21.2%, 31.4%, 70.6%
HSLhsl(227.6, 53.8%, 45.9%)
HSV / HSBhsv(227.6, 70%, 70.6%)
CMYK70%, 55.6%, 0%, 29.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,559,604
CSS custom property--colour: #3650B4;

Brightness & contrast

Relative luminance0.09817WCAG 2.x, 0 is black and 1 is white
Perceived brightness91.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.09:1
Contrast with white7.09:1WCAG normal text: AAA
Contrast with black2.96:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#C9AF4B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005EB7no red cones; affects about 1% of men; ΔE 13.1 from the original
Deuteranopia#0053B2no green cones; the most common form, about 1% of men; ΔE 7.3 from the original
Tritanopia#00687Ano blue cones; rare, and affects men and women equally; ΔE 58 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.09:1WCAG large text: AAA
Contrast with black, large text2.96:1WCAG large text: Fail

Named colours

Royal blue · ΔE 13.9Slate blue · ΔE 14.1Dark slateblue · ΔE 15.6Rebecca purple · ΔE 21Medium purple · ΔE 22.2Midnight blue · ΔE 23.7
Nearest named CSS colourRoyal blue (#4169E1)ΔE 13.95, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B49A36
Analogous#368FB4, #5B36B4
Triadic#B43650, #50B436
Split complementary#B45B36, #8FB436
Tetradic#B4368F, #B49A36, #36B45B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C8D0EE
Lighter +30%#A0AEE3
Lighter +20%#798CD7
Lighter +10%#526BCB
Darker −10%#2A3F8D
Darker −20%#1E2D66
Darker −30%#131C3E
Darker −40%#070A17
More saturated +25%#193FD1
Less saturated −25%#536197

Channel breakdown

R54
G80
B180
Red54 (21.2%)
Green80 (31.4%)
Blue180 (70.6%)
Hue227.62°
Saturation (HSL)53.85%
Lightness45.88%
Dominant channelBlue
Hex per channelR 36 · G 50 · B B4

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Every value on this page was computed from “3650b4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.