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Recognised as Colour

#233C6D

  • #233C6D
  • Blue
  • Dark
  • Nearest: Dark slateblue

#233C6D is a blue with RGB values 35, 60, 109 and HSL 220°, 51%, 28%. It is a dark colour, so white text on it reaches 10.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#233C6D#233C6D
HEX#233C6D
RGBrgb(35, 60, 109)
RGB (0–1)0.1373, 0.2353, 0.4275
RGB percentages13.7%, 23.5%, 42.7%
HSLhsl(219.7, 51.4%, 28.2%)
HSV / HSBhsv(219.7, 67.9%, 42.7%)
CMYK67.9%, 45%, 0%, 57.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,309,229
CSS custom property--colour: #233C6D;

Brightness & contrast

Relative luminance0.04693WCAG 2.x, 0 is black and 1 is white
Perceived brightness61.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.83:1
Contrast with white10.83:1WCAG normal text: AAA
Contrast with black1.94:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#DCC392

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25416Fno red cones; affects about 1% of men; ΔE 3.3 from the original
Deuteranopia#1A3A6Cno green cones; the most common form, about 1% of men; ΔE 1.7 from the original
Tritanopia#00474Fno blue cones; rare, and affects men and women equally; ΔE 31.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.83:1WCAG large text: AAA
Contrast with black, large text1.94:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 21.7Steel blue · ΔE 29.2Midnight blue · ΔE 31.6Dark slate grey · ΔE 34.3Slate grey · ΔE 35.5Dim grey · ΔE 37.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 21.69, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#6D5423
Analogous#23616D, #2F236D
Triadic#6D233C, #3C6D23
Split complementary#6D2F23, #616D23
Tetradic#6D2361, #6D5423, #236D2F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#84A0D8
Lighter +30%#5E83CB
Lighter +20%#3C66BA
Lighter +10%#2F5194
Darker −10%#172746
Darker −20%#0A1120
Darker −30%#000000
Darker −40%#000000
More saturated +25%#11367F
Less saturated −25%#35425B

Channel breakdown

R35
G60
B109
Red35 (13.7%)
Green60 (23.5%)
Blue109 (42.7%)
Hue219.73°
Saturation (HSL)51.39%
Lightness28.24%
Dominant channelBlue
Hex per channelR 23 · G 3C · B 6D

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Every value on this page was computed from “233c6d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.