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Recognised as Colour

#003187

  • #003187
  • Blue
  • Dark
  • Nearest: Midnight blue

#003187 is a blue with RGB values 0, 49, 135 and HSL 218°, 100%, 26%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#003187#003187
HEX#003187
RGBrgb(0, 49, 135)
RGB (0–1)0, 0.1922, 0.5294
RGB percentages0%, 19.2%, 52.9%
HSLhsl(218.2, 100%, 26.5%)
HSV / HSBhsv(218.2, 100%, 52.9%)
CMYK100%, 63.7%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,679
CSS custom property--colour: #003187;

Brightness & contrast

Relative luminance0.03946WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.74:1
Contrast with white11.74:1WCAG normal text: AAA
Contrast with black1.79:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#FFCE78

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003E8Ano red cones; affects about 1% of men; ΔE 10.1 from the original
Deuteranopia#003285no green cones; the most common form, about 1% of men; ΔE 2.1 from the original
Tritanopia#004857no blue cones; rare, and affects men and women equally; ΔE 52.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.74:1WCAG large text: AAA
Contrast with black, large text1.79:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.9Dark slateblue · ΔE 12.5Rebecca purple · ΔE 22.6Slate blue · ΔE 26.2Royal blue · ΔE 28.1Indigo · ΔE 29.1
Nearest named CSS colourMidnight blue (#191970)ΔE 11.9, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#875600
Analogous#007587, #120087
Triadic#870031, #318700
Split complementary#871200, #758700
Tetradic#870075, #875600, #008712

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5492FF
Lighter +30%#2172FF
Lighter +20%#0056ED
Lighter +10%#0044BA
Darker −10%#001E54
Darker −20%#000C21
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003187
Less saturated −25%#113676

Channel breakdown

R0
G49
B135
Red0 (0%)
Green49 (19.2%)
Blue135 (52.9%)
Hue218.22°
Saturation (HSL)100%
Lightness26.47%
Dominant channelBlue
Hex per channelR 00 · G 31 · B 87

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Every value on this page was computed from “hex 003187” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.