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Recognised as Colour

#0B2347

  • #0B2347
  • Blue
  • Dark
  • Nearest: Black

#0B2347 is a blue with RGB values 11, 35, 71 and HSL 216°, 73%, 16%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0B2347#0B2347
HEX#0B2347
RGBrgb(11, 35, 71)
RGB (0–1)0.0431, 0.1373, 0.2784
RGB percentages4.3%, 13.7%, 27.8%
HSLhsl(216, 73.2%, 16.1%)
HSV / HSBhsv(216, 84.5%, 27.8%)
CMYK84.5%, 50.7%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer729,927
CSS custom property--colour: #0B2347;

Brightness & contrast

Relative luminance0.01728WCAG 2.x, 0 is black and 1 is white
Perceived brightness36.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.61:1
Contrast with white15.61:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#F4DCB8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#102748no red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#042146no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#002C31no blue cones; rare, and affects men and women equally; ΔE 25.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.61:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Black · ΔE 29.4Dark slateblue · ΔE 31.2Dark slate grey · ΔE 32.7Midnight blue · ΔE 35.6Dim grey · ΔE 39.9Steel blue · ΔE 40.3
Nearest named CSS colourBlack (#000000)ΔE 29.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#472F0B
Analogous#0B4147, #110B47
Triadic#470B23, #23470B
Split complementary#47110B, #41470B
Tetradic#470B41, #472F0B, #0B4711

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3D7FE1
Lighter +30%#2064CB
Lighter +20%#194F9F
Lighter +10%#123973
Darker −10%#040D1B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#012151
Less saturated −25%#15253D

Channel breakdown

R11
G35
B71
Red11 (4.3%)
Green35 (13.7%)
Blue71 (27.8%)
Hue216°
Saturation (HSL)73.17%
Lightness16.08%
Dominant channelBlue
Hex per channelR 0B · G 23 · B 47

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Every value on this page was computed from “0b2347” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.