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Recognised as Colour

#00379B

  • #00379B
  • Blue
  • Dark
  • Nearest: Midnight blue

#00379B is a blue with RGB values 0, 55, 155 and HSL 219°, 100%, 30%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00379B#00379B
HEX#00379B
RGBrgb(0, 55, 155)
RGB (0–1)0, 0.2157, 0.6078
RGB percentages0%, 21.6%, 60.8%
HSLhsl(218.7, 100%, 30.4%)
HSV / HSBhsv(218.7, 100%, 60.8%)
CMYK100%, 64.5%, 0%, 39.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,235
CSS custom property--colour: #00379B;

Brightness & contrast

Relative luminance0.05099WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.4:1
Contrast with white10.4:1WCAG normal text: AAA
Contrast with black2.02:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FFC864

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00479Eno red cones; affects about 1% of men; ΔE 12.4 from the original
Deuteranopia#003999no green cones; the most common form, about 1% of men; ΔE 2.9 from the original
Tritanopia#005263no blue cones; rare, and affects men and women equally; ΔE 59.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.4:1WCAG large text: AAA
Contrast with black, large text2.02:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 14.9Dark slateblue · ΔE 16.6Rebecca purple · ΔE 20.3Slate blue · ΔE 20.5Royal blue · ΔE 22Navy · ΔE 25.7
Nearest named CSS colourMidnight blue (#191970)ΔE 14.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B6400
Analogous#00849B, #17009B
Triadic#9B0037, #379B00
Split complementary#9B1600, #859B00
Tetradic#9B0084, #9B6400, #009B16

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#689EFF
Lighter +30%#357DFF
Lighter +20%#025CFF
Lighter +10%#0049CE
Darker −10%#002568
Darker −20%#001335
Darker −30%#000102
Darker −40%#000000
More saturated +25%#00379B
Less saturated −25%#133D88

Channel breakdown

R0
G55
B155
Red0 (0%)
Green55 (21.6%)
Blue155 (60.8%)
Hue218.71°
Saturation (HSL)100%
Lightness30.39%
Dominant channelBlue
Hex per channelR 00 · G 37 · B 9B

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Every value on this page was computed from “00379b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.