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Recognised as Colour

#3B566E

  • #3B566E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#3B566E is a blue with RGB values 59, 86, 110 and HSL 208°, 30%, 33%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#3B566E#3B566E
HEX#3B566E
RGBrgb(59, 86, 110)
RGB (0–1)0.2314, 0.3373, 0.4314
RGB percentages23.1%, 33.7%, 43.1%
HSLhsl(208.2, 30.2%, 33.1%)
HSV / HSBhsv(208.2, 46.4%, 43.1%)
CMYK46.4%, 21.8%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,888,750
CSS custom property--colour: #3B566E;

Brightness & contrast

Relative luminance0.08711WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.66:1
Contrast with white7.66:1WCAG normal text: AAA
Contrast with black2.74:1WCAG normal text: Fail
Greyscale equivalent#525252
Inverted#C4A991

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4C566Fno red cones; affects about 1% of men; ΔE 5.8 from the original
Deuteranopia#46516Eno green cones; the most common form, about 1% of men; ΔE 6.6 from the original
Tritanopia#275C5Eno blue cones; rare, and affects men and women equally; ΔE 17.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text7.66:1WCAG large text: AAA
Contrast with black, large text2.74:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 16.3Slate grey · ΔE 18.6Dim grey · ΔE 19.4Light slate grey · ΔE 21.3Steel blue · ΔE 22.9Gray · ΔE 25
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 16.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6E533B
Analogous#3B6E6D, #3B3D6E
Triadic#6E3B56, #566E3B
Split complementary#6E3B3D, #6E6D3B
Tetradic#6D3B6E, #6E533B, #3C6E3B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6BCCF
Lighter +30%#85A3BD
Lighter +20%#638AAC
Lighter +10%#4D708F
Darker −10%#293C4D
Darker −20%#17222C
Darker −30%#06080A
Darker −40%#000000
More saturated +25%#265783
Less saturated −25%#505559

Channel breakdown

R59
G86
B110
Red59 (23.1%)
Green86 (33.7%)
Blue110 (43.1%)
Hue208.24°
Saturation (HSL)30.18%
Lightness33.14%
Dominant channelBlue
Hex per channelR 3B · G 56 · B 6E

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Every value on this page was computed from “3b566e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.