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Recognised as Colour

#0B3BAA

  • #0B3BAA
  • Blue
  • Dark
  • Nearest: Slate blue

#0B3BAA is a blue with RGB values 11, 59, 170 and HSL 222°, 88%, 35%. It is a dark colour, so white text on it reaches 9.5:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#0B3BAA#0B3BAA
HEX#0B3BAA
RGBrgb(11, 59, 170)
RGB (0–1)0.0431, 0.2314, 0.6667
RGB percentages4.3%, 23.1%, 66.7%
HSLhsl(221.9, 87.8%, 35.5%)
HSV / HSBhsv(221.9, 93.5%, 66.7%)
CMYK93.5%, 65.3%, 0%, 33.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer736,170
CSS custom property--colour: #0B3BAA;

Brightness & contrast

Relative luminance0.06101WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.46:1
Contrast with white9.46:1WCAG normal text: AAA
Contrast with black2.22:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#F4C455

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004DAEno red cones; affects about 1% of men; ΔE 13.5 from the original
Deuteranopia#003FA8no green cones; the most common form, about 1% of men; ΔE 4.6 from the original
Tritanopia#00596Dno blue cones; rare, and affects men and women equally; ΔE 64.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.46:1WCAG large text: AAA
Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Slate blue · ΔE 17.4Royal blue · ΔE 18.8Midnight blue · ΔE 19.3Rebecca purple · ΔE 20.2Dark slateblue · ΔE 21.4Navy · ΔE 23.8
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 17.36, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AA7A0B
Analogous#0B8BAA, #2A0BAA
Triadic#AA0B3B, #3BAA0B
Split complementary#AA2B0B, #8AAA0B
Tetradic#AA0B8B, #AA7A0B, #0BAA2B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8AABF7
Lighter +30%#5A88F4
Lighter +20%#2A66F1
Lighter +10%#0E4CDA
Darker −10%#082A7A
Darker −20%#051A4A
Darker −30%#02091A
Darker −40%#000000
More saturated +25%#0037B5
Less saturated −25%#224493

Channel breakdown

R11
G59
B170
Red11 (4.3%)
Green59 (23.1%)
Blue170 (66.7%)
Hue221.89°
Saturation (HSL)87.85%
Lightness35.49%
Dominant channelBlue
Hex per channelR 0B · G 3B · B AA

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Every value on this page was computed from “0b3baa” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.