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Recognised as Colour

#1723D1

  • #1723D1
  • Blue
  • Dark
  • Nearest: Medium blue

#1723D1 is a blue with RGB values 23, 35, 209 and HSL 236°, 80%, 45%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1723D1#1723D1
HEX#1723D1
RGBrgb(23, 35, 209)
RGB (0–1)0.0902, 0.1373, 0.8196
RGB percentages9%, 13.7%, 82%
HSLhsl(236.1, 80.2%, 45.5%)
HSV / HSBhsv(236.1, 89%, 82%)
CMYK89%, 83.3%, 0%, 18%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,516,497
CSS custom property--colour: #1723D1;

Brightness & contrast

Relative luminance0.05988WCAG 2.x, 0 is black and 1 is white
Perceived brightness76.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.56:1
Contrast with white9.56:1WCAG normal text: AAA
Contrast with black2.2:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#E8DC2E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004FD6no red cones; affects about 1% of men; ΔE 28.6 from the original
Deuteranopia#003BCEno green cones; the most common form, about 1% of men; ΔE 16.8 from the original
Tritanopia#005D7Dno blue cones; rare, and affects men and women equally; ΔE 93.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.56:1WCAG large text: AAA
Contrast with black, large text2.2:1WCAG large text: Fail

Named colours

Medium blue · ΔE 11Blue violet · ΔE 20.8Dark blue · ΔE 24.4Dark violet · ΔE 26.2Navy · ΔE 29.4Blue · ΔE 30
Nearest named CSS colourMedium blue (#0000CD)ΔE 11.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D1C517
Analogous#1780D1, #6817D1
Triadic#D11723, #23D117
Split complementary#D16817, #80D117
Tetradic#D11780, #D1C517, #17D168

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#BCC0F8
Lighter +30%#8E95F3
Lighter +20%#606AEE
Lighter +10%#333EE8
Darker −10%#121BA3
Darker −20%#0D1475
Darker −30%#080C47
Darker −40%#030419
More saturated +25%#000FE8
Less saturated −25%#343CB4

Channel breakdown

R23
G35
B209
Red23 (9%)
Green35 (13.7%)
Blue209 (82%)
Hue236.13°
Saturation (HSL)80.17%
Lightness45.49%
Dominant channelBlue
Hex per channelR 17 · G 23 · B D1

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Every value on this page was computed from “1723d1” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.