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Colour

#002188

  • #002188
  • Blue
  • Dark
  • Nearest: Midnight blue

#002188 is a blue with RGB values 0, 33, 136 and HSL 225°, 100%, 27%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#002188#002188
HEX#002188
RGBrgb(0, 33, 136)
RGB (0–1)0, 0.1294, 0.5333
RGB percentages0%, 12.9%, 53.3%
HSLhsl(225.4, 100%, 26.7%)
HSV / HSBhsv(225.4, 100%, 53.3%)
CMYK100%, 75.7%, 0%, 46.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer8,584
CSS custom property--colour: #002188;

Brightness & contrast

Relative luminance0.02865WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.35:1
Contrast with white13.35:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#212121
Inverted#FFDE77

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00368Bno red cones; affects about 1% of men; ΔE 16.3 from the original
Deuteranopia#002986no green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#004052no blue cones; rare, and affects men and women equally; ΔE 62.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.35:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.3Navy · ΔE 15.9Indigo · ΔE 18.4Dark blue · ΔE 19.5Rebecca purple · ΔE 19.8Dark slateblue · ΔE 21.9
Nearest named CSS colourMidnight blue (#191970)ΔE 10.31, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#886700
Analogous#006588, #230088
Triadic#880021, #218800
Split complementary#882300, #658800
Tetradic#880065, #886700, #008823

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#557EFF
Lighter +30%#2258FF
Lighter +20%#003AEE
Lighter +10%#002DBB
Darker −10%#001555
Darker −20%#000822
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002188
Less saturated −25%#112A77

Channel breakdown

R0
G33
B136
Red0 (0%)
Green33 (12.9%)
Blue136 (53.3%)
Hue225.44°
Saturation (HSL)100%
Lightness26.67%
Dominant channelBlue
Hex per channelR 00 · G 21 · B 88

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Every value on this page was computed from “hex 002188” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.