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Recognised as Colour

#1D166E

  • #1D166E
  • Blue
  • Dark
  • Nearest: Midnight blue

#1D166E is a blue with RGB values 29, 22, 110 and HSL 245°, 67%, 26%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1D166E#1D166E
HEX#1D166E
RGBrgb(29, 22, 110)
RGB (0–1)0.1137, 0.0863, 0.4314
RGB percentages11.4%, 8.6%, 43.1%
HSLhsl(244.8, 66.7%, 25.9%)
HSV / HSBhsv(244.8, 80%, 43.1%)
CMYK73.6%, 80%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,906,286
CSS custom property--colour: #1D166E;

Brightness & contrast

Relative luminance0.01961WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.08:1
Contrast with white15.08:1WCAG normal text: AAA
Contrast with black1.39:1WCAG normal text: Fail
Greyscale equivalent#1E1E1E
Inverted#E2E991

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A71no red cones; affects about 1% of men; ΔE 16.1 from the original
Deuteranopia#00226Cno green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#003041no blue cones; rare, and affects men and women equally; ΔE 53.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.08:1WCAG large text: AAA
Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 1.6Dark slateblue · ΔE 18.5Indigo · ΔE 19.6Rebecca purple · ΔE 20.2Navy · ΔE 21.2Dark blue · ΔE 26
Nearest named CSS colourMidnight blue (#191970)ΔE 1.64, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#676E16
Analogous#163B6E, #49166E
Triadic#6E1D16, #166E1D
Split complementary#6E4916, #3B6E16
Tetradic#6E163B, #676E16, #166E49

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#776EE2
Lighter +30%#4F44DA
Lighter +20%#3327C3
Lighter +10%#281F99
Darker −10%#120E44
Darker −20%#070519
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F067F
Less saturated −25%#2B275E

Channel breakdown

R29
G22
B110
Red29 (11.4%)
Green22 (8.6%)
Blue110 (43.1%)
Hue244.77°
Saturation (HSL)66.67%
Lightness25.88%
Dominant channelBlue
Hex per channelR 1D · G 16 · B 6E

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Every value on this page was computed from “1d166e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.