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Recognised as Colour

#0B306B

  • #0B306B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0B306B is a blue with RGB values 11, 48, 107 and HSL 217°, 81%, 23%. It is a dark colour, so white text on it reaches 12.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0B306B#0B306B
HEX#0B306B
RGBrgb(11, 48, 107)
RGB (0–1)0.0431, 0.1882, 0.4196
RGB percentages4.3%, 18.8%, 42%
HSLhsl(216.9, 81.4%, 23.1%)
HSV / HSBhsv(216.9, 89.7%, 42%)
CMYK89.7%, 55.1%, 0%, 58%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer733,291
CSS custom property--colour: #0B306B;

Brightness & contrast

Relative luminance0.03247WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.73:1
Contrast with white12.73:1WCAG normal text: AAA
Contrast with black1.65:1WCAG normal text: Fail
Greyscale equivalent#2C2C2C
Inverted#F4CF94

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#05376Dno red cones; affects about 1% of men; ΔE 5.7 from the original
Deuteranopia#002E6Ano green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#003F48no blue cones; rare, and affects men and women equally; ΔE 38.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.73:1WCAG large text: AAA
Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.5Midnight blue · ΔE 23.3Rebecca purple · ΔE 34.2Steel blue · ΔE 35.9Slate blue · ΔE 39.4Royal blue · ΔE 40.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.49, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6B460B
Analogous#0B606B, #160B6B
Triadic#6B0B30, #306B0B
Split complementary#6B160B, #606B0B
Tetradic#6B0B60, #6B460B, #0B6B16

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#558FED
Lighter +30%#2671E9
Lighter +20%#1559C7
Lighter +10%#104599
Darker −10%#061B3D
Darker −20%#01070F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002D76
Less saturated −25%#1A335C

Channel breakdown

R11
G48
B107
Red11 (4.3%)
Green48 (18.8%)
Blue107 (42%)
Hue216.88°
Saturation (HSL)81.36%
Lightness23.14%
Dominant channelBlue
Hex per channelR 0B · G 30 · B 6B

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Every value on this page was computed from “0b306b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.