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Recognised as Colour

#063B66

  • #063B66
  • Blue
  • Dark
  • Nearest: Dark slateblue

#063B66 is a blue with RGB values 6, 59, 102 and HSL 207°, 89%, 21%. It is a dark colour, so white text on it reaches 11.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#063B66#063B66
HEX#063B66
RGBrgb(6, 59, 102)
RGB (0–1)0.0235, 0.2314, 0.4
RGB percentages2.4%, 23.1%, 40%
HSLhsl(206.9, 88.9%, 21.2%)
HSV / HSBhsv(206.9, 94.1%, 40%)
CMYK94.1%, 42.2%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer408,422
CSS custom property--colour: #063B66;

Brightness & contrast

Relative luminance0.04126WCAG 2.x, 0 is black and 1 is white
Perceived brightness56.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.51:1
Contrast with white11.51:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#F9C499

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#263E68no red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#163565no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#00454Bno blue cones; rare, and affects men and women equally; ΔE 27.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.51:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.1Steel blue · ΔE 29.1Dark slate grey · ΔE 30.1Slate grey · ΔE 34.8Dim grey · ΔE 36.1Midnight blue · ΔE 36.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.13, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#663106
Analogous#066661, #060B66
Triadic#66063B, #3B6606
Split complementary#66060B, #666106
Tetradic#610666, #663106, #0B6606

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#44A5F4
Lighter +30%#148EF1
Lighter +20%#0C73C6
Lighter +10%#095796
Darker −10%#031F36
Darker −20%#000306
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003C6C
Less saturated −25%#143A59

Channel breakdown

R6
G59
B102
Red6 (2.4%)
Green59 (23.1%)
Blue102 (40%)
Hue206.88°
Saturation (HSL)88.89%
Lightness21.18%
Dominant channelBlue
Hex per channelR 06 · G 3B · B 66

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Every value on this page was computed from “063b66” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.