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Recognised as Colour

#1F164A

  • #1F164A
  • Blue
  • Dark
  • Nearest: Midnight blue

#1F164A is a blue with RGB values 31, 22, 74 and HSL 250°, 54%, 19%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1F164A#1F164A
HEX#1F164A
RGBrgb(31, 22, 74)
RGB (0–1)0.1216, 0.0863, 0.2902
RGB percentages12.2%, 8.6%, 29%
HSLhsl(250.4, 54.2%, 18.8%)
HSV / HSBhsv(250.4, 70.3%, 29%)
CMYK58.1%, 70.3%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,037,322
CSS custom property--colour: #1F164A;

Brightness & contrast

Relative luminance0.0136WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.51:1
Contrast with white16.51:1WCAG normal text: AAA
Contrast with black1.27:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#E0E9B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00204Cno red cones; affects about 1% of men; ΔE 11.8 from the original
Deuteranopia#001D49no green cones; the most common form, about 1% of men; ΔE 10.8 from the original
Tritanopia#0E232Dno blue cones; rare, and affects men and women equally; ΔE 33.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.51:1WCAG large text: AAA
Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 22Dark slateblue · ΔE 22.8Rebecca purple · ΔE 34.7Black · ΔE 39Indigo · ΔE 39.2Purple · ΔE 42.7
Nearest named CSS colourMidnight blue (#191970)ΔE 22.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#414A16
Analogous#16274A, #39164A
Triadic#4A1F16, #164A1F
Split complementary#4A3916, #274A16
Tetradic#4A1627, #414A16, #164A39

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#715DCF
Lighter +30%#5039C0
Lighter +20%#402D99
Lighter +10%#2F2271
Darker −10%#0F0A23
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#170A56
Less saturated −25%#27223E

Channel breakdown

R31
G22
B74
Red31 (12.2%)
Green22 (8.6%)
Blue74 (29%)
Hue250.38°
Saturation (HSL)54.17%
Lightness18.82%
Dominant channelBlue
Hex per channelR 1F · G 16 · B 4A

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Every value on this page was computed from “1f164a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.