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Recognised as Colour

#1F145C

  • #1F145C
  • Blue
  • Dark
  • Nearest: Midnight blue

#1F145C is a blue with RGB values 31, 20, 92 and HSL 249°, 64%, 22%. It is a dark colour, so white text on it reaches 16:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1F145C#1F145C
HEX#1F145C
RGBrgb(31, 20, 92)
RGB (0–1)0.1216, 0.0784, 0.3608
RGB percentages12.2%, 7.8%, 36.1%
HSLhsl(249.2, 64.3%, 22%)
HSV / HSBhsv(249.2, 78.3%, 36.1%)
CMYK66.3%, 78.3%, 0%, 63.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,036,828
CSS custom property--colour: #1F145C;

Brightness & contrast

Relative luminance0.01564WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16:1
Contrast with white16:1WCAG normal text: AAA
Contrast with black1.31:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#E0EBA3

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00245Eno red cones; affects about 1% of men; ΔE 14.7 from the original
Deuteranopia#001F5Bno green cones; the most common form, about 1% of men; ΔE 11.9 from the original
Tritanopia#002836no blue cones; rare, and affects men and women equally; ΔE 45.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16:1WCAG large text: AAA
Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.6Dark slateblue · ΔE 18Rebecca purple · ΔE 25.4Indigo · ΔE 27.4Navy · ΔE 30.4Purple · ΔE 35.1
Nearest named CSS colourMidnight blue (#191970)ΔE 9.58, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#515C14
Analogous#142D5C, #43145C
Triadic#5C1F14, #145C1F
Split complementary#5C4314, #2D5C14
Tetradic#5C142D, #515C14, #145C43

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7360DC
Lighter +30%#4E36D3
Lighter +20%#3B26B0
Lighter +10%#2D1D86
Darker −10%#110B32
Darker −20%#030208
Darker −30%#000000
Darker −40%#000000
More saturated +25%#15066A
Less saturated −25%#29224E

Channel breakdown

R31
G20
B92
Red31 (12.2%)
Green20 (7.8%)
Blue92 (36.1%)
Hue249.17°
Saturation (HSL)64.29%
Lightness21.96%
Dominant channelBlue
Hex per channelR 1F · G 14 · B 5C

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Every value on this page was computed from “1f145c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.