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Colour

#003774

  • #003774
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003774 is a blue with RGB values 0, 55, 116 and HSL 212°, 100%, 23%. It is a dark colour, so white text on it reaches 11.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003774#003774
HEX#003774
RGBrgb(0, 55, 116)
RGB (0–1)0, 0.2157, 0.4549
RGB percentages0%, 21.6%, 45.5%
HSLhsl(211.6, 100%, 22.7%)
HSV / HSBhsv(211.6, 100%, 45.5%)
CMYK100%, 52.6%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,196
CSS custom property--colour: #003774;

Brightness & contrast

Relative luminance0.03993WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.68:1
Contrast with white11.68:1WCAG normal text: AAA
Contrast with black1.8:1WCAG normal text: Fail
Greyscale equivalent#303030
Inverted#FFC88B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0E3D76no red cones; affects about 1% of men; ΔE 4.1 from the original
Deuteranopia#003473no green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#004650no blue cones; rare, and affects men and women equally; ΔE 37.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.68:1WCAG large text: AAA
Contrast with black, large text1.8:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.6Midnight blue · ΔE 25Steel blue · ΔE 33Rebecca purple · ΔE 34.8Slate blue · ΔE 38.4Royal blue · ΔE 38.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.58, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#743D00
Analogous#007174, #030074
Triadic#740037, #377400
Split complementary#740300, #717400
Tetradic#740071, #743D00, #007403

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#419BFF
Lighter +30%#0E80FF
Lighter +20%#0067DA
Lighter +10%#004FA7
Darker −10%#001F41
Darker −20%#00070E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003774
Less saturated −25%#0E3866

Channel breakdown

R0
G55
B116
Red0 (0%)
Green55 (21.6%)
Blue116 (45.5%)
Hue211.55°
Saturation (HSL)100%
Lightness22.75%
Dominant channelBlue
Hex per channelR 00 · G 37 · B 74

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Every value on this page was computed from “hex 003774” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.