Colour

#03186F

#03186F
Blue
Dark
Nearest: Midnight blue

#03186F is a blue with RGB values 3, 24, 111 and HSL 228°, 95%, 22%. It is a dark colour, so white text on it reaches 15.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#03186F#03186F

HEX#03186F

RGBrgb(3, 24, 111)

RGB (0–1)0.0118, 0.0941, 0.4353

RGB percentages1.2%, 9.4%, 43.5%

HSLhsl(228.3, 94.7%, 22.4%)

HSV / HSBhsv(228.3, 97.3%, 43.5%)

CMYK97.3%, 78.4%, 0%, 56.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer202,863

CSS custom property--colour: #03186F;

Brightness & contrast

Relative luminance0.0182WCAG 2.x, 0 is black and 1 is white

Perceived brightness41.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.4:1

Contrast with white15.4:1WCAG normal text: AAA

Contrast with black1.36:1WCAG normal text: Fail

Greyscale equivalent#1A1A1A

Inverted#FCE790

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002A72no red cones; affects about 1% of men; ΔE 14.1 from the original

Deuteranopia#001F6Dno green cones; the most common form, about 1% of men; ΔE 7 from the original

Tritanopia#003242no blue cones; rare, and affects men and women equally; ΔE 53.9 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text15.4:1WCAG large text: AAA

Contrast with black, large text1.36:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 2.4 Dark slateblue · ΔE 19.2 Navy · ΔE 21.8 Indigo · ΔE 22.1 Rebecca purple · ΔE 22.5 Dark blue · ΔE 26.5

Nearest named CSS colourMidnight blue (#191970)ΔE 2.43, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#6F5A03

Analogous#034E6F, #24036F

Triadic#6F0318, #186F03

Split complementary#6F2403, #4E6F03

Tetradic#6F034E, #6F5A03, #036F24

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#4467FA

Lighter +30%#123FF9

Lighter +20%#062DD2

Lighter +10%#0423A1

Darker −10%#020D3D

Darker −20%#00030C

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001672

Less saturated −25%#112161

Channel breakdown

G24

B111

Red3 (1.2%)

Green24 (9.4%)

Blue111 (43.5%)

Hue228.33°

Saturation (HSL)94.74%

Lightness22.35%

Dominant channelBlue

Hex per channelR 03 · G 18 · B 6F

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#03186F

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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