Nerdulator> put something in

Recognised as Colour

#1B166D

  • #1B166D
  • Blue
  • Dark
  • Nearest: Midnight blue

#1B166D is a blue with RGB values 27, 22, 109 and HSL 243°, 66%, 26%. It is a dark colour, so white text on it reaches 15.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B166D#1B166D
HEX#1B166D
RGBrgb(27, 22, 109)
RGB (0–1)0.1059, 0.0863, 0.4275
RGB percentages10.6%, 8.6%, 42.7%
HSLhsl(243.4, 66.4%, 25.7%)
HSV / HSBhsv(243.4, 79.8%, 42.7%)
CMYK75.2%, 79.8%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,775,213
CSS custom property--colour: #1B166D;

Brightness & contrast

Relative luminance0.01911WCAG 2.x, 0 is black and 1 is white
Perceived brightness43.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.19:1
Contrast with white15.19:1WCAG normal text: AAA
Contrast with black1.38:1WCAG normal text: Fail
Greyscale equivalent#1D1D1D
Inverted#E4E992

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002A6Fno red cones; affects about 1% of men; ΔE 16.7 from the original
Deuteranopia#00226Bno 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 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.19:1WCAG large text: AAA
Contrast with black, large text1.38:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 1.4Dark slateblue · ΔE 18.5Indigo · ΔE 20.3Rebecca purple · ΔE 20.7Navy · ΔE 21.7Dark blue · ΔE 26.5
Nearest named CSS colourMidnight blue (#191970)ΔE 1.38, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#686D16
Analogous#163D6D, #47166D
Triadic#6D1B16, #166D1B
Split complementary#6D4616, #3D6D16
Tetradic#6D163C, #686D16, #166D46

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#746DE2
Lighter +30%#4C43D9
Lighter +20%#3027C2
Lighter +10%#261F97
Darker −10%#100D43
Darker −20%#060518
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0D067D
Less saturated −25%#29265D

Channel breakdown

R27
G22
B109
Red27 (10.6%)
Green22 (8.6%)
Blue109 (42.7%)
Hue243.45°
Saturation (HSL)66.41%
Lightness25.69%
Dominant channelBlue
Hex per channelR 1B · G 16 · B 6D

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “1b166d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.