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Colour

#03184F

  • #03184F
  • Blue
  • Dark
  • Nearest: Midnight blue

#03184F is a blue with RGB values 3, 24, 79 and HSL 223°, 93%, 16%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#03184F#03184F
HEX#03184F
RGBrgb(3, 24, 79)
RGB (0–1)0.0118, 0.0941, 0.3098
RGB percentages1.2%, 9.4%, 31%
HSLhsl(223.4, 92.7%, 16.1%)
HSV / HSBhsv(223.4, 96.2%, 31%)
CMYK96.2%, 69.6%, 0%, 69%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer202,831
CSS custom property--colour: #03184F;

Brightness & contrast

Relative luminance0.01237WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.83:1
Contrast with white16.83:1WCAG normal text: AAA
Contrast with black1.25:1WCAG normal text: Fail
Greyscale equivalent#181818
Inverted#FCE7B0

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002151no red cones; affects about 1% of men; ΔE 7.8 from the original
Deuteranopia#001A4Eno green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#002730no blue cones; rare, and affects men and women equally; ΔE 37.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.83:1WCAG large text: AAA
Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 20.7Dark slateblue · ΔE 22.8Rebecca purple · ΔE 35.8Indigo · ΔE 40Black · ΔE 41.2Navy · ΔE 42
Nearest named CSS colourMidnight blue (#191970)ΔE 20.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4F3A03
Analogous#033E4F, #14034F
Triadic#4F0318, #184F03
Split complementary#4F1403, #3E4F03
Tetradic#4F033E, #4F3A03, #034F14

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2761F7
Lighter +30%#0945E2
Lighter +20%#0736B1
Lighter +10%#052780
Darker −10%#01091E
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001752
Less saturated −25%#0D1D45

Channel breakdown

R3
G24
B79
Red3 (1.2%)
Green24 (9.4%)
Blue79 (31%)
Hue223.42°
Saturation (HSL)92.68%
Lightness16.08%
Dominant channelBlue
Hex per channelR 03 · G 18 · B 4F

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Every value on this page was computed from “03184f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.