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Recognised as Colour

#33447A

  • #33447A
  • Blue
  • Dark
  • Nearest: Dark slateblue

#33447A is a blue with RGB values 51, 68, 122 and HSL 226°, 41%, 34%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#33447A#33447A
HEX#33447A
RGBrgb(51, 68, 122)
RGB (0–1)0.2, 0.2667, 0.4784
RGB percentages20%, 26.7%, 47.8%
HSLhsl(225.6, 41%, 33.9%)
HSV / HSBhsv(225.6, 58.2%, 47.8%)
CMYK58.2%, 44.3%, 0%, 52.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer3,359,866
CSS custom property--colour: #33447A;

Brightness & contrast

Relative luminance0.06243WCAG 2.x, 0 is black and 1 is white
Perceived brightness72 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.34:1
Contrast with white9.34:1WCAG normal text: AAA
Contrast with black2.25:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#CCBB85

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2D4A7Cno red cones; affects about 1% of men; ΔE 5 from the original
Deuteranopia#244479no green cones; the most common form, about 1% of men; ΔE 3.7 from the original
Tritanopia#085059no blue cones; rare, and affects men and women equally; ΔE 35 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.34:1WCAG large text: AAA
Contrast with black, large text2.25:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.9Steel blue · ΔE 26.9Midnight blue · ΔE 30.3Slate grey · ΔE 34.4Rebecca purple · ΔE 35.3Cornflower blue · ΔE 35.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7A6933
Analogous#33687A, #46337A
Triadic#7A3344, #447A33
Split complementary#7A4533, #687A33
Tetradic#7A3368, #7A6933, #337A45

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A1AED8
Lighter +30%#7D8FC9
Lighter +20%#5970BA
Lighter +10%#42589E
Darker −10%#243056
Darker −20%#151C32
Darker −30%#06080E
Darker −40%#000000
More saturated +25%#1D3990
Less saturated −25%#494F64

Channel breakdown

R51
G68
B122
Red51 (20%)
Green68 (26.7%)
Blue122 (47.8%)
Hue225.63°
Saturation (HSL)41.04%
Lightness33.92%
Dominant channelBlue
Hex per channelR 33 · G 44 · B 7A

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Every value on this page was computed from “33447a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.