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Colour

#18169D

  • #18169D
  • Blue
  • Dark
  • Nearest: Dark blue

#18169D is a blue with RGB values 24, 22, 157 and HSL 241°, 75%, 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

#18169D#18169D
HEX#18169D
RGBrgb(24, 22, 157)
RGB (0–1)0.0941, 0.0863, 0.6157
RGB percentages9.4%, 8.6%, 61.6%
HSLhsl(240.9, 75.4%, 35.1%)
HSV / HSBhsv(240.9, 86%, 61.6%)
CMYK84.7%, 86%, 0%, 38.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,578,653
CSS custom property--colour: #18169D;

Brightness & contrast

Relative luminance0.03202WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.8:1
Contrast with white12.8:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#E7E962

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0039A1no red cones; affects about 1% of men; ΔE 23.5 from the original
Deuteranopia#002B9Bno green cones; the most common form, about 1% of men; ΔE 15 from the original
Tritanopia#00435Cno blue cones; rare, and affects men and women equally; ΔE 75.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.8:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Dark blue · ΔE 6.5Navy · ΔE 9.3Indigo · ΔE 16.7Rebecca purple · ΔE 26.1Midnight blue · ΔE 26.5Medium blue · ΔE 29.2
Nearest named CSS colourDark blue (#00008B)ΔE 6.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9B9D16
Analogous#16579D, #5C169D
Triadic#9D1816, #169D18
Split complementary#9D5C16, #579D16
Tetradic#9D1657, #9B9D16, #169D5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9190EF
Lighter +30%#6563E9
Lighter +20%#3936E3
Lighter +10%#1F1CCA
Darker −10%#111070
Darker −20%#0A0944
Darker −30%#030317
Darker −40%#000000
More saturated +25%#0300B3
Less saturated −25%#2E2C87

Channel breakdown

R24
G22
B157
Red24 (9.4%)
Green22 (8.6%)
Blue157 (61.6%)
Hue240.89°
Saturation (HSL)75.42%
Lightness35.1%
Dominant channelBlue
Hex per channelR 18 · G 16 · B 9D

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Every value on this page was computed from “18169d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.