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Recognised as Colour

#17199A

  • #17199A
  • Blue
  • Dark
  • Nearest: Dark blue

#17199A is a blue with RGB values 23, 25, 154 and HSL 239°, 74%, 35%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#17199A#17199A
HEX#17199A
RGBrgb(23, 25, 154)
RGB (0–1)0.0902, 0.098, 0.6039
RGB percentages9%, 9.8%, 60.4%
HSLhsl(239.1, 74%, 34.7%)
HSV / HSBhsv(239.1, 85.1%, 60.4%)
CMYK85.1%, 83.8%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,513,882
CSS custom property--colour: #17199A;

Brightness & contrast

Relative luminance0.03211WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.79:1
Contrast with white12.79:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#222222
Inverted#E8E665

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00399Dno red cones; affects about 1% of men; ΔE 22.8 from the original
Deuteranopia#002B98no green cones; the most common form, about 1% of men; ΔE 13.7 from the original
Tritanopia#00435Bno blue cones; rare, and affects men and women equally; ΔE 73.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.79:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark blue · ΔE 7.7Navy · ΔE 8.6Indigo · ΔE 15.6Midnight blue · ΔE 23.6Rebecca purple · ΔE 24.1Slate blue · ΔE 28.2
Nearest named CSS colourDark blue (#00008B)ΔE 7.66, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A9817
Analogous#175B9A, #56179A
Triadic#9A1719, #199A17
Split complementary#9A5717, #5A9A17
Tetradic#9A175B, #9A9817, #179A57

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8F90EE
Lighter +30%#6264E8
Lighter +20%#3639E1
Lighter +10%#1E20C6
Darker −10%#10126E
Darker −20%#0A0B41
Darker −30%#030315
Darker −40%#000000
More saturated +25%#0104B0
Less saturated −25%#2D2E84

Channel breakdown

R23
G25
B154
Red23 (9%)
Green25 (9.8%)
Blue154 (60.4%)
Hue239.08°
Saturation (HSL)74.01%
Lightness34.71%
Dominant channelBlue
Hex per channelR 17 · G 19 · B 9A

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Every value on this page was computed from “17199a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.