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Colour

#333B52

  • #333B52
  • Blue
  • Dark
  • Nearest: Dark slate grey

#333B52 is a blue with RGB values 51, 59, 82 and HSL 225°, 23%, 26%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#333B52#333B52
HEX#333B52
RGBrgb(51, 59, 82)
RGB (0–1)0.2, 0.2314, 0.3216
RGB percentages20%, 23.1%, 32.2%
HSLhsl(224.5, 23.3%, 26.1%)
HSV / HSBhsv(224.5, 37.8%, 32.2%)
CMYK37.8%, 28%, 0%, 67.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,357,522
CSS custom property--colour: #333B52;

Brightness & contrast

Relative luminance0.04441WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.12:1
Contrast with white11.12:1WCAG normal text: AAA
Contrast with black1.89:1WCAG normal text: Fail
Greyscale equivalent#3B3B3B
Inverted#CCC4AD

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#343D53no red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#313A51no green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#2A4043no blue cones; rare, and affects men and women equally; ΔE 15.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text11.12:1WCAG large text: AAA
Contrast with black, large text1.89:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 19.7Dim grey · ΔE 24.7Slate grey · ΔE 28.6Black · ΔE 29.4Light slate grey · ΔE 31.6Gray · ΔE 32.4
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 19.67, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#524A33
Analogous#334B52, #3A3352
Triadic#52333B, #3B5233
Split complementary#523B33, #4B5233
Tetradic#52334B, #524A33, #33523B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#949FBD
Lighter +30%#7582A9
Lighter +20%#5A6891
Lighter +10%#475271
Darker −10%#1F2433
Darker −20%#0C0E13
Darker −30%#000000
Darker −40%#000000
More saturated +25%#223363
Less saturated −25%#434343

Channel breakdown

R51
G59
B82
Red51 (20%)
Green59 (23.1%)
Blue82 (32.2%)
Hue224.52°
Saturation (HSL)23.31%
Lightness26.08%
Dominant channelBlue
Hex per channelR 33 · G 3B · B 52

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Every value on this page was computed from “333b52” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.