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Colour

#40386D

  • #40386D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#40386D is a blue with RGB values 64, 56, 109 and HSL 249°, 32%, 32%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#40386D#40386D
HEX#40386D
RGBrgb(64, 56, 109)
RGB (0–1)0.251, 0.2196, 0.4275
RGB percentages25.1%, 22%, 42.7%
HSLhsl(249.1, 32.1%, 32.4%)
HSV / HSBhsv(249.1, 48.6%, 42.7%)
CMYK41.3%, 48.6%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer4,208,749
CSS custom property--colour: #40386D;

Brightness & contrast

Relative luminance0.05022WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.48:1
Contrast with white10.48:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#3E3E3E
Inverted#BFC792

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25416Fno red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#243E6Cno green cones; the most common form, about 1% of men; ΔE 11.5 from the original
Tritanopia#34434Dno blue cones; rare, and affects men and women equally; ΔE 30.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.48:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.4Midnight blue · ΔE 26.6Rebecca purple · ΔE 31.2Steel blue · ΔE 33.8Slate grey · ΔE 38Slate blue · ΔE 38.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#656D38
Analogous#384A6D, #5A386D
Triadic#6D4038, #386D40
Split complementary#6D5B38, #4A6D38
Tetradic#6D384A, #656D38, #386D5B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A9A2CF
Lighter +30%#8980BE
Lighter +20%#6A5EAD
Lighter +10%#54498F
Darker −10%#2C274B
Darker −20%#18152A
Darker −30%#050408
Darker −40%#000000
More saturated +25%#322382
Less saturated −25%#4E4D58

Channel breakdown

R64
G56
B109
Red64 (25.1%)
Green56 (22%)
Blue109 (42.7%)
Hue249.06°
Saturation (HSL)32.12%
Lightness32.35%
Dominant channelBlue
Hex per channelR 40 · G 38 · B 6D

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Every value on this page was computed from “40386d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.