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Recognised as Colour

#366FB2

  • #366FB2
  • Blue
  • Dark
  • Nearest: Steel blue

#366FB2 is a blue with RGB values 54, 111, 178 and HSL 212°, 53%, 45%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#366FB2#366FB2
HEX#366FB2
RGBrgb(54, 111, 178)
RGB (0–1)0.2118, 0.4353, 0.698
RGB percentages21.2%, 43.5%, 69.8%
HSLhsl(212.4, 53.4%, 45.5%)
HSV / HSBhsv(212.4, 69.7%, 69.8%)
CMYK69.7%, 37.6%, 0%, 30.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,567,538
CSS custom property--colour: #366FB2;

Brightness & contrast

Relative luminance0.15368WCAG 2.x, 0 is black and 1 is white
Perceived brightness108.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.16:1
Contrast with white5.16:1WCAG normal text: AA
Contrast with black4.07:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#C9904D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#5174B5no red cones; affects about 1% of men; ΔE 5.1 from the original
Deuteranopia#3E68B1no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#007F88no blue cones; rare, and affects men and women equally; ΔE 40.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.16:1WCAG large text: AAA
Contrast with black, large text4.07:1WCAG large text: AA

Named colours

Steel blue · ΔE 13.4Cornflower blue · ΔE 18.7Dodgerblue · ΔE 26.7Dark slateblue · ΔE 27Slate grey · ΔE 31.8Light slate grey · ΔE 32.1
Nearest named CSS colourSteel blue (#4682B4)ΔE 13.45, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B27936
Analogous#36ADB2, #3B36B2
Triadic#B2366F, #6FB236
Split complementary#B23B36, #ADB236
Tetradic#B236AD, #B27936, #36B23B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C6D8EE
Lighter +30%#9FBEE2
Lighter +20%#78A3D6
Lighter +10%#5189CA
Darker −10%#2A578B
Darker −20%#1E3E64
Darker −30%#12263D
Darker −40%#070D15
More saturated +25%#196DCF
Less saturated −25%#537195

Channel breakdown

R54
G111
B178
Red54 (21.2%)
Green111 (43.5%)
Blue178 (69.8%)
Hue212.42°
Saturation (HSL)53.45%
Lightness45.49%
Dominant channelBlue
Hex per channelR 36 · G 6F · B B2

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Every value on this page was computed from “366fb2” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.