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Recognised as Colour

#223AD1

  • #223AD1
  • Blue
  • Dark
  • Nearest: Dark blue

#223AD1 is a blue with RGB values 34, 58, 209 and HSL 232°, 72%, 48%. It is a dark colour, so white text on it reaches 8.1:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#223AD1#223AD1
HEX#223AD1
RGBrgb(34, 58, 209)
RGB (0–1)0.1333, 0.2275, 0.8196
RGB percentages13.3%, 22.7%, 82%
HSLhsl(231.8, 72%, 47.6%)
HSV / HSBhsv(231.8, 83.7%, 82%)
CMYK83.7%, 72.2%, 0%, 18%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,243,281
CSS custom property--colour: #223AD1;

Brightness & contrast

Relative luminance0.0797WCAG 2.x, 0 is black and 1 is white
Perceived brightness85.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.1:1
Contrast with white8.1:1WCAG normal text: AAA
Contrast with black2.59:1WCAG normal text: Fail
Greyscale equivalent#404040
Inverted#DDC52E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058D5no red cones; affects about 1% of men; ΔE 22 from the original
Deuteranopia#0047CEno green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#006682no blue cones; rare, and affects men and women equally; ΔE 83.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.1:1WCAG large text: AAA
Contrast with black, large text2.59:1WCAG large text: Fail

Named colours

Dark blue · ΔE 22Medium slateblue · ΔE 23.4Blue violet · ΔE 24.8Navy · ΔE 25.3Medium blue · ΔE 25.5Slate blue · ΔE 26.4
Nearest named CSS colourDark blue (#00008B)ΔE 22.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D1B922
Analogous#2291D1, #6222D1
Triadic#D1223A, #3AD122
Split complementary#D16222, #91D122
Tetradic#D12291, #D1B922, #22D162

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C9CFF6
Lighter +30%#9DA8EF
Lighter +20%#7181E8
Lighter +10%#455BE1
Darker −10%#1B2EA5
Darker −20%#142279
Darker −30%#0D154D
Darker −40%#050922
More saturated +25%#0424EF
Less saturated −25%#4050B3

Channel breakdown

R34
G58
B209
Red34 (13.3%)
Green58 (22.7%)
Blue209 (82%)
Hue231.77°
Saturation (HSL)72.02%
Lightness47.65%
Dominant channelBlue
Hex per channelR 22 · G 3A · B D1

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Every value on this page was computed from “223ad1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.