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Recognised as Colour

#336AA3

  • #336AA3
  • Blue
  • Dark
  • Nearest: Steel blue

#336AA3 is a blue with RGB values 51, 106, 163 and HSL 211°, 52%, 42%. It is a dark colour, so white text on it reaches 5.6:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#336AA3#336AA3
HEX#336AA3
RGBrgb(51, 106, 163)
RGB (0–1)0.2, 0.4157, 0.6392
RGB percentages20%, 41.6%, 63.9%
HSLhsl(210.5, 52.3%, 42%)
HSV / HSBhsv(210.5, 68.7%, 63.9%)
CMYK68.7%, 35%, 0%, 36.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,369,635
CSS custom property--colour: #336AA3;

Brightness & contrast

Relative luminance0.13656WCAG 2.x, 0 is black and 1 is white
Perceived brightness102 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.63:1
Contrast with white5.63:1WCAG normal text: AA
Contrast with black3.73:1WCAG normal text: Fail
Greyscale equivalent#626262
Inverted#CC955C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#516DA5no red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#4163A2no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#00777Fno blue cones; rare, and affects men and women equally; ΔE 34.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.63:1WCAG large text: AAA
Contrast with black, large text3.73:1WCAG large text: AA

Named colours

Steel blue · ΔE 10.8Cornflower blue · ΔE 24Slate grey · ΔE 27.2Light slate grey · ΔE 27.9Dark slateblue · ΔE 28.8Dodgerblue · ΔE 32.7
Nearest named CSS colourSteel blue (#4682B4)ΔE 10.81, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A36C33
Analogous#33A2A3, #3433A3
Triadic#A3336A, #6AA333
Split complementary#A33433, #A2A333
Tetradic#A333A2, #A36C33, #33A334

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9D1E9
Lighter +30%#92B7DD
Lighter +20%#6B9DD1
Lighter +10%#4483C5
Darker −10%#27517C
Darker −20%#1B3755
Darker −30%#0F1E2E
Darker −40%#020508
More saturated +25%#186ABE
Less saturated −25%#4E6A88

Channel breakdown

R51
G106
B163
Red51 (20%)
Green106 (41.6%)
Blue163 (63.9%)
Hue210.54°
Saturation (HSL)52.34%
Lightness41.96%
Dominant channelBlue
Hex per channelR 33 · G 6A · B A3

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Every value on this page was computed from “336aa3” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.