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Recognised as Colour

#0B3288

  • #0B3288
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0B3288 is a blue with RGB values 11, 50, 136 and HSL 221°, 85%, 29%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0B3288#0B3288
HEX#0B3288
RGBrgb(11, 50, 136)
RGB (0–1)0.0431, 0.1961, 0.5333
RGB percentages4.3%, 19.6%, 53.3%
HSLhsl(221.3, 85%, 28.8%)
HSV / HSBhsv(221.3, 91.9%, 53.3%)
CMYK91.9%, 63.2%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer733,832
CSS custom property--colour: #0B3288;

Brightness & contrast

Relative luminance0.0413WCAG 2.x, 0 is black and 1 is white
Perceived brightness60.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.5:1
Contrast with white11.5:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#F4CD77

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003F8Bno red cones; affects about 1% of men; ΔE 10.3 from the original
Deuteranopia#003486no green cones; the most common form, about 1% of men; ΔE 3.2 from the original
Tritanopia#004958no blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.5:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.8Midnight blue · ΔE 12Rebecca purple · ΔE 22Slate blue · ΔE 25.7Royal blue · ΔE 27.7Indigo · ΔE 28.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.8, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#88610B
Analogous#0B7188, #220B88
Triadic#880B32, #32880B
Split complementary#88220B, #71880B
Tetradic#880B71, #88610B, #0B8822

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6C96F3
Lighter +30%#3D74EF
Lighter +20%#1355E6
Lighter +10%#0F43B7
Darker −10%#072159
Darker −20%#030F2A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002E93
Less saturated −25%#1D3976

Channel breakdown

R11
G50
B136
Red11 (4.3%)
Green50 (19.6%)
Blue136 (53.3%)
Hue221.28°
Saturation (HSL)85.03%
Lightness28.82%
Dominant channelBlue
Hex per channelR 0B · G 32 · B 88

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Every value on this page was computed from “0b3288” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.