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Recognised as Colour

#1D4AA0

  • #1D4AA0
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1D4AA0 is a blue with RGB values 29, 74, 160 and HSL 219°, 69%, 37%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1D4AA0#1D4AA0
HEX#1D4AA0
RGBrgb(29, 74, 160)
RGB (0–1)0.1137, 0.2902, 0.6275
RGB percentages11.4%, 29%, 62.7%
HSLhsl(219.4, 69.3%, 37.1%)
HSV / HSBhsv(219.4, 81.9%, 62.7%)
CMYK81.9%, 53.7%, 0%, 37.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,919,648
CSS custom property--colour: #1D4AA0;

Brightness & contrast

Relative luminance0.07697WCAG 2.x, 0 is black and 1 is white
Perceived brightness79.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.27:1
Contrast with white8.27:1WCAG normal text: AAA
Contrast with black2.54:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#E2B55F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0655A3no red cones; affects about 1% of men; ΔE 8.8 from the original
Deuteranopia#00499Eno green cones; the most common form, about 1% of men; ΔE 2.3 from the original
Tritanopia#005F6Dno blue cones; rare, and affects men and women equally; ΔE 51.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.27:1WCAG large text: AAA
Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.4Royal blue · ΔE 22.1Midnight blue · ΔE 22.4Slate blue · ΔE 22.9Rebecca purple · ΔE 25.5Medium purple · ΔE 28.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.42, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#A0731D
Analogous#1D8BA0, #321DA0
Triadic#A01D4A, #4AA01D
Split complementary#A0311D, #8CA01D
Tetradic#A01D8B, #A0731D, #1DA032

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9CB8ED
Lighter +30%#7199E5
Lighter +20%#467ADD
Lighter +10%#255ECB
Darker −10%#153675
Darker −20%#0D224A
Darker −30%#060E1E
Darker −40%#000000
More saturated +25%#0543B8
Less saturated −25%#355188

Channel breakdown

R29
G74
B160
Red29 (11.4%)
Green74 (29%)
Blue160 (62.7%)
Hue219.39°
Saturation (HSL)69.31%
Lightness37.06%
Dominant channelBlue
Hex per channelR 1D · G 4A · B A0

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Every value on this page was computed from “1d4aa0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.