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Recognised as Colour

#223DDB

  • #223DDB
  • Blue
  • Dark
  • Nearest: Blue violet

#223DDB is a blue with RGB values 34, 61, 219 and HSL 231°, 73%, 50%. It is a dark colour, so white text on it reaches 7.6:1 contrast (AAA for normal text). The nearest named colour is Blue violet.

Colour values

#223DDB#223DDB
HEX#223DDB
RGBrgb(34, 61, 219)
RGB (0–1)0.1333, 0.2392, 0.8588
RGB percentages13.3%, 23.9%, 85.9%
HSLhsl(231.2, 73.1%, 49.6%)
HSV / HSBhsv(231.2, 84.5%, 85.9%)
CMYK84.5%, 72.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,244,059
CSS custom property--colour: #223DDB;

Brightness & contrast

Relative luminance0.08792WCAG 2.x, 0 is black and 1 is white
Perceived brightness89.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.61:1
Contrast with white7.61:1WCAG normal text: AAA
Contrast with black2.76:1WCAG normal text: Fail
Greyscale equivalent#434343
Inverted#DDC224

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#005DE0no red cones; affects about 1% of men; ΔE 22.9 from the original
Deuteranopia#004BD8no green cones; the most common form, about 1% of men; ΔE 12.4 from the original
Tritanopia#006B88no blue cones; rare, and affects men and women equally; ΔE 86.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.61:1WCAG large text: AAA
Contrast with black, large text2.76:1WCAG large text: Fail

Named colours

Blue violet · ΔE 23.4Medium blue · ΔE 23.5Medium slateblue · ΔE 24.6Dark blue · ΔE 24.8Navy · ΔE 28.5Dark orchid · ΔE 28.5
Nearest named CSS colourBlue violet (#8A2BE2)ΔE 23.43, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#DBC022
Analogous#229ADB, #6422DB
Triadic#DB223D, #3DDB22
Split complementary#DB6322, #9ADB22
Tetradic#DB2299, #DBC022, #22DB63

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#D1D7F8
Lighter +30%#A5B0F1
Lighter +20%#7989EA
Lighter +10%#4D63E3
Darker −10%#1B31AF
Darker −20%#142483
Darker −30%#0D1857
Darker −40%#070C2A
More saturated +25%#0227FB
Less saturated −25%#4253BB

Channel breakdown

R34
G61
B219
Red34 (13.3%)
Green61 (23.9%)
Blue219 (85.9%)
Hue231.24°
Saturation (HSL)73.12%
Lightness49.61%
Dominant channelBlue
Hex per channelR 22 · G 3D · B DB

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