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Recognised as Colour

#333C5E

  • #333C5E
  • Blue
  • Dark
  • Nearest: Dark slate grey

#333C5E is a blue with RGB values 51, 60, 94 and HSL 227°, 30%, 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 slate grey.

Colour values

#333C5E#333C5E
HEX#333C5E
RGBrgb(51, 60, 94)
RGB (0–1)0.2, 0.2353, 0.3686
RGB percentages20%, 23.5%, 36.9%
HSLhsl(227.4, 29.7%, 28.4%)
HSV / HSBhsv(227.4, 45.7%, 36.9%)
CMYK45.7%, 36.2%, 0%, 63.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,357,790
CSS custom property--colour: #333C5E;

Brightness & contrast

Relative luminance0.04744WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.78:1
Contrast with white10.78:1WCAG normal text: AAA
Contrast with black1.95:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#CCC3A1

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#303F5Fno red cones; affects about 1% of men; ΔE 2.7 from the original
Deuteranopia#2C3C5Dno green cones; the most common form, about 1% of men; ΔE 2.4 from the original
Tritanopia#254348no blue cones; rare, and affects men and women equally; ΔE 21.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text10.78:1WCAG large text: AAA
Contrast with black, large text1.95:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 25.8Dark slateblue · ΔE 28.9Dim grey · ΔE 29Slate grey · ΔE 30.2Steel blue · ΔE 30.4Light slate grey · ΔE 32.8
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 25.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5E5533
Analogous#33525E, #40335E
Triadic#5E333C, #3C5E33
Split complementary#5E4033, #525E33
Tetradic#5E3351, #5E5533, #335E40

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97A1C6
Lighter +30%#7683B4
Lighter +20%#5766A0
Lighter +10%#45517F
Darker −10%#21273D
Darker −20%#0F121C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#213170
Less saturated −25%#45474C

Channel breakdown

R51
G60
B94
Red51 (20%)
Green60 (23.5%)
Blue94 (36.9%)
Hue227.44°
Saturation (HSL)29.66%
Lightness28.43%
Dominant channelBlue
Hex per channelR 33 · G 3C · B 5E

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Every value on this page was computed from “333c5e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.