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Recognised as Colour

#0B1440

  • #0B1440
  • Blue
  • Dark
  • Nearest: Midnight blue

#0B1440 is a blue with RGB values 11, 20, 64 and HSL 230°, 71%, 15%. It is a dark colour, so white text on it reaches 17.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#0B1440#0B1440
HEX#0B1440
RGBrgb(11, 20, 64)
RGB (0–1)0.0431, 0.0784, 0.251
RGB percentages4.3%, 7.8%, 25.1%
HSLhsl(229.8, 70.7%, 14.7%)
HSV / HSBhsv(229.8, 82.8%, 25.1%)
CMYK82.8%, 68.8%, 0%, 74.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer726,080
CSS custom property--colour: #0B1440;

Brightness & contrast

Relative luminance0.00942WCAG 2.x, 0 is black and 1 is white
Perceived brightness27.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.67:1
Contrast with white17.67:1WCAG normal text: AAA
Contrast with black1.19:1WCAG normal text: Fail
Greyscale equivalent#151515
Inverted#F4EBBF

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001B41no red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#00163Fno green cones; the most common form, about 1% of men; ΔE 3.8 from the original
Tritanopia#001F27no blue cones; rare, and affects men and women equally; ΔE 30.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.67:1WCAG large text: AAA
Contrast with black, large text1.19:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 27.7Dark slateblue · ΔE 28.3Black · ΔE 33.7Rebecca purple · ΔE 41.6Dark slate grey · ΔE 43Indigo · ΔE 46
Nearest named CSS colourMidnight blue (#191970)ΔE 27.73, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#40370B
Analogous#0B2F40, #1C0B40
Triadic#400B14, #14400B
Split complementary#401C0B, #2F400B
Tetradic#400B2F, #40370B, #0B401C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3A56DD
Lighter +30%#213DC3
Lighter +20%#1A2F97
Lighter +10%#12226C
Darker −10%#040614
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#020E49
Less saturated −25%#141A37

Channel breakdown

R11
G20
B64
Red11 (4.3%)
Green20 (7.8%)
Blue64 (25.1%)
Hue229.81°
Saturation (HSL)70.67%
Lightness14.71%
Dominant channelBlue
Hex per channelR 0B · G 14 · B 40

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Every value on this page was computed from “0b1440” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.