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Recognised as Colour

#1F25AC

  • #1F25AC
  • Blue
  • Dark
  • Nearest: Dark blue

#1F25AC is a blue with RGB values 31, 37, 172 and HSL 237°, 69%, 40%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#1F25AC#1F25AC
HEX#1F25AC
RGBrgb(31, 37, 172)
RGB (0–1)0.1216, 0.1451, 0.6745
RGB percentages12.2%, 14.5%, 67.5%
HSLhsl(237.4, 69.5%, 39.8%)
HSV / HSBhsv(237.4, 82%, 67.5%)
CMYK82%, 78.5%, 0%, 32.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,041,260
CSS custom property--colour: #1F25AC;

Brightness & contrast

Relative luminance0.04593WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.95:1
Contrast with white10.95:1WCAG normal text: AAA
Contrast with black1.92:1WCAG normal text: Fail
Greyscale equivalent#2D2D2D
Inverted#E0DA53

Colour vision & accessibility

Protanopia#0044B0no red cones; affects about 1% of men; ΔE 22.4 from the original
Deuteranopia#0035AAno green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#004E68no 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 text10.95:1WCAG large text: AAA
Contrast with black, large text1.92:1WCAG large text: Fail

Named colours

Nearest named CSS colourDark blue (#00008B)ΔE 11.87, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#ACA61F
Analogous#1F6BAC, #601FAC
Triadic#AC1F25, #25AC1F
Split complementary#AC601F, #6BAC1F
Tetradic#AC1F6B, #ACA61F, #1FAC60

Tints, shades & saturation

Lighter +40%#A8ABEF
Lighter +30%#7D81E7
Lighter +20%#5157E0
Lighter +10%#272ED7
Darker −10%#171C81
Darker −20%#0F1256
Darker −30%#08092A
Darker −40%#000000
More saturated +25%#060EC5
Less saturated −25%#383C93

Channel breakdown

R31
G37
B172
Red31 (12.2%)
Green37 (14.5%)
Blue172 (67.5%)
Hue237.45°
Saturation (HSL)69.46%
Lightness39.8%
Dominant channelBlue
Hex per channelR 1F · G 25 · B AC

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Every value on this page was computed from “1f25ac” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.