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Recognised as Colour

#0B4CA9

  • #0B4CA9
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0B4CA9 is a blue with RGB values 11, 76, 169 and HSL 215°, 88%, 35%. It is a dark colour, so white text on it reaches 8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0B4CA9#0B4CA9
HEX#0B4CA9
RGBrgb(11, 76, 169)
RGB (0–1)0.0431, 0.298, 0.6627
RGB percentages4.3%, 29.8%, 66.3%
HSLhsl(215.3, 87.8%, 35.3%)
HSV / HSBhsv(215.3, 93.5%, 66.3%)
CMYK93.5%, 55%, 0%, 33.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer740,521
CSS custom property--colour: #0B4CA9;

Brightness & contrast

Relative luminance0.08105WCAG 2.x, 0 is black and 1 is white
Perceived brightness81.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.01:1
Contrast with white8.01:1WCAG normal text: AAA
Contrast with black2.62:1WCAG normal text: Fail
Greyscale equivalent#454545
Inverted#F4B356

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058ACno red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#004AA7no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#006373no blue cones; rare, and affects men and women equally; ΔE 53.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.01:1WCAG large text: AAA
Contrast with black, large text2.62:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.2Royal blue · ΔE 18.7Slate blue · ΔE 20.8Midnight blue · ΔE 23.1Rebecca purple · ΔE 25.4Medium purple · ΔE 28
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.19, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A9680B
Analogous#0B9BA9, #190BA9
Triadic#A90B4C, #4CA90B
Split complementary#A9190B, #9BA90B
Tetradic#A90B9B, #A9680B, #0BA919

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#89B6F7
Lighter +30%#5999F4
Lighter +20%#297BF1
Lighter +10%#0E62D9
Darker −10%#083679
Darker −20%#052149
Darker −30%#020B19
Darker −40%#000000
More saturated +25%#004AB4
Less saturated −25%#215093

Channel breakdown

R11
G76
B169
Red11 (4.3%)
Green76 (29.8%)
Blue169 (66.3%)
Hue215.32°
Saturation (HSL)87.78%
Lightness35.29%
Dominant channelBlue
Hex per channelR 0B · G 4C · B A9

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Every value on this page was computed from “0b4ca9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.