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Colour

#15396F

  • #15396F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#15396F is a blue with RGB values 21, 57, 111 and HSL 216°, 68%, 26%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#15396F#15396F
HEX#15396F
RGBrgb(21, 57, 111)
RGB (0–1)0.0824, 0.2235, 0.4353
RGB percentages8.2%, 22.4%, 43.5%
HSLhsl(216, 68.2%, 25.9%)
HSV / HSBhsv(216, 81.1%, 43.5%)
CMYK81.1%, 48.6%, 0%, 56.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,390,959
CSS custom property--colour: #15396F;

Brightness & contrast

Relative luminance0.04233WCAG 2.x, 0 is black and 1 is white
Perceived brightness58.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.37:1
Contrast with white11.37:1WCAG normal text: AAA
Contrast with black1.85:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#EAC690

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1C3E71no red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#06366Eno green cones; the most common form, about 1% of men; ΔE 2.2 from the original
Tritanopia#00464Eno blue cones; rare, and affects men and women equally; ΔE 34.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.37:1WCAG large text: AAA
Contrast with black, large text1.85:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20Midnight blue · ΔE 28.7Steel blue · ΔE 30.9Rebecca purple · ΔE 37.5Dark slate grey · ΔE 37.8Slate grey · ΔE 38.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6F4B15
Analogous#15666F, #1E156F
Triadic#6F1539, #396F15
Split complementary#6F1E15, #666F15
Tetradic#6F1566, #6F4B15, #156F1E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6D9CE3
Lighter +30%#427FDB
Lighter +20%#2565C5
Lighter +10%#1D4F9A
Darker −10%#0D2344
Darker −20%#050D19
Darker −30%#000000
Darker −40%#000000
More saturated +25%#053680
Less saturated −25%#263C5F

Channel breakdown

R21
G57
B111
Red21 (8.2%)
Green57 (22.4%)
Blue111 (43.5%)
Hue216°
Saturation (HSL)68.18%
Lightness25.88%
Dominant channelBlue
Hex per channelR 15 · G 39 · B 6F

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Every value on this page was computed from “15396f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.