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Colour

#003B68

  • #003B68
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003B68 is a blue with RGB values 0, 59, 104 and HSL 206°, 100%, 20%. 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

#003B68#003B68
HEX#003B68
RGBrgb(0, 59, 104)
RGB (0–1)0, 0.2314, 0.4078
RGB percentages0%, 23.1%, 40.8%
HSLhsl(206, 100%, 20.4%)
HSV / HSBhsv(206, 100%, 40.8%)
CMYK100%, 43.3%, 0%, 59.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,208
CSS custom property--colour: #003B68;

Brightness & contrast

Relative luminance0.04127WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.5:1
Contrast with white11.5:1WCAG normal text: AAA
Contrast with black1.83:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFC497

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#243E6Ano red cones; affects about 1% of men; ΔE 4.8 from the original
Deuteranopia#123567no green cones; the most common form, about 1% of men; ΔE 6.1 from the original
Tritanopia#00464Cno blue cones; rare, and affects men and women equally; ΔE 28.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.5:1WCAG large text: AAA
Contrast with black, large text1.83:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.3Steel blue · ΔE 29Dark slate grey · ΔE 31.4Slate grey · ΔE 35.5Midnight blue · ΔE 36Dim grey · ΔE 37.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.29, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#682D00
Analogous#006861, #000768
Triadic#68003B, #3B6800
Split complementary#680007, #686100
Tetradic#610068, #682D00, #076800

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#35A8FF
Lighter +30%#0292FF
Lighter +20%#0075CE
Lighter +10%#00589B
Darker −10%#001E35
Darker −20%#000102
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003B68
Less saturated −25%#0D395B

Channel breakdown

R0
G59
B104
Red0 (0%)
Green59 (23.1%)
Blue104 (40.8%)
Hue205.96°
Saturation (HSL)100%
Lightness20.39%
Dominant channelBlue
Hex per channelR 00 · G 3B · B 68

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Every value on this page was computed from “003b68” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.