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Colour

#1F3465

  • #1F3465
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1F3465 is a blue with RGB values 31, 52, 101 and HSL 222°, 53%, 26%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1F3465#1F3465
HEX#1F3465
RGBrgb(31, 52, 101)
RGB (0–1)0.1216, 0.2039, 0.3961
RGB percentages12.2%, 20.4%, 39.6%
HSLhsl(222, 53%, 25.9%)
HSV / HSBhsv(222, 69.3%, 39.6%)
CMYK69.3%, 48.5%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,045,029
CSS custom property--colour: #1F3465;

Brightness & contrast

Relative luminance0.03687WCAG 2.x, 0 is black and 1 is white
Perceived brightness55.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.09:1
Contrast with white12.09:1WCAG normal text: AAA
Contrast with black1.74:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#E0CB9A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C3967no red cones; affects about 1% of men; ΔE 3.8 from the original
Deuteranopia#0F3364no green cones; the most common form, about 1% of men; ΔE 2.7 from the original
Tritanopia#003F47no blue cones; rare, and affects men and women equally; ΔE 32.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.09:1WCAG large text: AAA
Contrast with black, large text1.74:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.3Midnight blue · ΔE 29.4Steel blue · ΔE 32.8Dark slate grey · ΔE 36Rebecca purple · ΔE 38.3Slate grey · ΔE 38.5
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.31, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#65501F
Analogous#1F5765, #2D1F65
Triadic#651F34, #34651F
Split complementary#652D1F, #57651F
Tetradic#651F57, #65501F, #1F652D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7A96D6
Lighter +30%#5377CA
Lighter +20%#375CB3
Lighter +10%#2B488C
Darker −10%#13203E
Darker −20%#070C17
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0E2D75
Less saturated −25%#2F3B54

Channel breakdown

R31
G52
B101
Red31 (12.2%)
Green52 (20.4%)
Blue101 (39.6%)
Hue222°
Saturation (HSL)53.03%
Lightness25.88%
Dominant channelBlue
Hex per channelR 1F · G 34 · B 65

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Every value on this page was computed from “1f3465” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.