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Recognised as Colour

#012184

  • #012184
  • Blue
  • Dark
  • Nearest: Midnight blue

#012184 is a blue with RGB values 1, 33, 132 and HSL 225°, 98%, 26%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#012184#012184
HEX#012184
RGBrgb(1, 33, 132)
RGB (0–1)0.0039, 0.1294, 0.5176
RGB percentages0.4%, 12.9%, 51.8%
HSLhsl(225.3, 98.5%, 26.1%)
HSV / HSBhsv(225.3, 99.2%, 51.8%)
CMYK99.2%, 75%, 0%, 48.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer74,116
CSS custom property--colour: #012184;

Brightness & contrast

Relative luminance0.0276WCAG 2.x, 0 is black and 1 is white
Perceived brightness51.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.53:1
Contrast with white13.53:1WCAG normal text: AAA
Contrast with black1.55:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FEDE7B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003487no red cones; affects about 1% of men; ΔE 14.8 from the original
Deuteranopia#002882no green cones; the most common form, about 1% of men; ΔE 6.9 from the original
Tritanopia#003E50no blue cones; rare, and affects men and women equally; ΔE 59.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.53:1WCAG large text: AAA
Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 8.2Navy · ΔE 17.7Indigo · ΔE 19.4Rebecca purple · ΔE 19.9Dark slateblue · ΔE 20.2Dark blue · ΔE 21.6
Nearest named CSS colourMidnight blue (#191970)ΔE 8.25, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#846401
Analogous#016284, #230184
Triadic#840121, #218401
Split complementary#842301, #628401
Tetradic#840162, #846401, #018423

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#537DFE
Lighter +30%#2157FD
Lighter +20%#023AE9
Lighter +10%#012EB7
Darker −10%#011451
Darker −20%#00081F
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002085
Less saturated −25%#122A73

Channel breakdown

R1
G33
B132
Red1 (0.4%)
Green33 (12.9%)
Blue132 (51.8%)
Hue225.34°
Saturation (HSL)98.5%
Lightness26.08%
Dominant channelBlue
Hex per channelR 01 · G 21 · B 84

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Every value on this page was computed from “hex 012184” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.