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Recognised as Colour

#336C99

  • #336C99
  • Blue
  • Dark
  • Nearest: Steel blue

#336C99 is a blue with RGB values 51, 108, 153 and HSL 206°, 50%, 40%. 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

#336C99#336C99
HEX#336C99
RGBrgb(51, 108, 153)
RGB (0–1)0.2, 0.4235, 0.6
RGB percentages20%, 42.4%, 60%
HSLhsl(206.5, 50%, 40%)
HSV / HSBhsv(206.5, 66.7%, 60%)
CMYK66.7%, 29.4%, 0%, 40%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,370,137
CSS custom property--colour: #336C99;

Brightness & contrast

Relative luminance0.13729WCAG 2.x, 0 is black and 1 is white
Perceived brightness101.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.61:1
Contrast with white5.61:1WCAG normal text: AA
Contrast with black3.75:1WCAG normal text: Fail
Greyscale equivalent#636363
Inverted#CC9366

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#586D9Bno red cones; affects about 1% of men; ΔE 9.2 from the original
Deuteranopia#4A6398no green cones; the most common form, about 1% of men; ΔE 10.4 from the original
Tritanopia#00777Cno blue cones; rare, and affects men and women equally; ΔE 29.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.61:1WCAG large text: AAA
Contrast with black, large text3.75:1WCAG large text: AA

Named colours

Steel blue · ΔE 8.9Slate grey · ΔE 21.4Light slate grey · ΔE 22.5Cornflower blue · ΔE 29.6Dark slate grey · ΔE 30.2Dim grey · ΔE 30.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.91, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#996033
Analogous#339993, #333999
Triadic#99336C, #6C9933
Split complementary#993339, #999333
Tetradic#933399, #996033, #399933

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B3CFE6
Lighter +30%#8CB7D9
Lighter +20%#669FCC
Lighter +10%#4087BF
Darker −10%#265173
Darker −20%#1A364D
Darker −30%#0D1B26
Darker −40%#000000
More saturated +25%#196FB3
Less saturated −25%#4D6980

Channel breakdown

R51
G108
B153
Red51 (20%)
Green108 (42.4%)
Blue153 (60%)
Hue206.47°
Saturation (HSL)50%
Lightness40%
Dominant channelBlue
Hex per channelR 33 · G 6C · B 99

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Every value on this page was computed from “336c99” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.