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Colour

#33739A

  • #33739A
  • Blue
  • Dark
  • Nearest: Steel blue

#33739A is a blue with RGB values 51, 115, 154 and HSL 203°, 50%, 40%. It is a dark colour, so white text on it reaches 5.2:1 contrast (AA for normal text). The nearest named colour is Steel blue.

Colour values

#33739A#33739A
HEX#33739A
RGBrgb(51, 115, 154)
RGB (0–1)0.2, 0.451, 0.6039
RGB percentages20%, 45.1%, 60.4%
HSLhsl(202.7, 50.2%, 40.2%)
HSV / HSBhsv(202.7, 66.9%, 60.4%)
CMYK66.9%, 25.3%, 0%, 39.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,371,930
CSS custom property--colour: #33739A;

Brightness & contrast

Relative luminance0.15298WCAG 2.x, 0 is black and 1 is white
Perceived brightness106 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.17:1
Contrast with white5.17:1WCAG normal text: AA
Contrast with black4.06:1WCAG normal text: Fail
Greyscale equivalent#686868
Inverted#CC8C65

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#61739Cno red cones; affects about 1% of men; ΔE 12.2 from the original
Deuteranopia#536999no green cones; the most common form, about 1% of men; ΔE 13.1 from the original
Tritanopia#007D80no blue cones; rare, and affects men and women equally; ΔE 26.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text5.17:1WCAG large text: AAA
Contrast with black, large text4.06:1WCAG large text: AA

Named colours

Steel blue · ΔE 8.9Slate grey · ΔE 18.7Light slate grey · ΔE 19.6Cadetblue · ΔE 27.6Dark slate grey · ΔE 28Dim grey · ΔE 28.2
Nearest named CSS colourSteel blue (#4682B4)ΔE 8.93, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#9A5A33
Analogous#339A8E, #333F9A
Triadic#9A3373, #739A33
Split complementary#9A333F, #9A8E33
Tetradic#8E339A, #9A5A33, #3F9A33

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B3D3E6
Lighter +30%#8DBCD9
Lighter +20%#67A6CC
Lighter +10%#408FC0
Darker −10%#265674
Darker −20%#1A3A4D
Darker −30%#0D1D27
Darker −40%#000101
More saturated +25%#1979B4
Less saturated −25%#4D6D80

Channel breakdown

R51
G115
B154
Red51 (20%)
Green115 (45.1%)
Blue154 (60.4%)
Hue202.72°
Saturation (HSL)50.24%
Lightness40.2%
Dominant channelBlue
Hex per channelR 33 · G 73 · B 9A

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Every value on this page was computed from “33739a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.