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Colour

#22447B

  • #22447B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#22447B is a blue with RGB values 34, 68, 123 and HSL 217°, 57%, 31%. It is a dark colour, so white text on it reaches 9.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#22447B#22447B
HEX#22447B
RGBrgb(34, 68, 123)
RGB (0–1)0.1333, 0.2667, 0.4824
RGB percentages13.3%, 26.7%, 48.2%
HSLhsl(217.1, 56.7%, 30.8%)
HSV / HSBhsv(217.1, 72.4%, 48.2%)
CMYK72.4%, 44.7%, 0%, 51.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,245,755
CSS custom property--colour: #22447B;

Brightness & contrast

Relative luminance0.05904WCAG 2.x, 0 is black and 1 is white
Perceived brightness69.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.63:1
Contrast with white9.63:1WCAG normal text: AAA
Contrast with black2.18:1WCAG normal text: Fail
Greyscale equivalent#414141
Inverted#DDBB84

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2A497Dno red cones; affects about 1% of men; ΔE 3.1 from the original
Deuteranopia#1A417Ano green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#005159no blue cones; rare, and affects men and women equally; ΔE 35.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.63:1WCAG large text: AAA
Contrast with black, large text2.18:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19.8Steel blue · ΔE 26.2Midnight blue · ΔE 31.1Slate grey · ΔE 35.4Cornflower blue · ΔE 35.8Dark slate grey · ΔE 36.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7B5922
Analogous#22717B, #2C227B
Triadic#7B2244, #447B22
Split complementary#7B2D22, #717B22
Tetradic#7B2271, #7B5922, #227B2D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8AABDF
Lighter +30%#628ED4
Lighter +20%#3A71C9
Lighter +10%#2D5AA3
Darker −10%#172E53
Darker −20%#0C182B
Darker −30%#010203
Darker −40%#000000
More saturated +25%#0E3F8F
Less saturated −25%#364967

Channel breakdown

R34
G68
B123
Red34 (13.3%)
Green68 (26.7%)
Blue123 (48.2%)
Hue217.08°
Saturation (HSL)56.69%
Lightness30.78%
Dominant channelBlue
Hex per channelR 22 · G 44 · B 7B

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Every value on this page was computed from “22447b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.