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Colour

#222A55

  • #222A55
  • Blue
  • Dark
  • Nearest: Dark slateblue

#222A55 is a blue with RGB values 34, 42, 85 and HSL 231°, 43%, 23%. It is a dark colour, so white text on it reaches 13.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#222A55#222A55
HEX#222A55
RGBrgb(34, 42, 85)
RGB (0–1)0.1333, 0.1647, 0.3333
RGB percentages13.3%, 16.5%, 33.3%
HSLhsl(230.6, 42.9%, 23.3%)
HSV / HSBhsv(230.6, 60%, 33.3%)
CMYK60%, 50.6%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,239,061
CSS custom property--colour: #222A55;

Brightness & contrast

Relative luminance0.02652WCAG 2.x, 0 is black and 1 is white
Perceived brightness47 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.72:1
Contrast with white13.72:1WCAG normal text: AAA
Contrast with black1.53:1WCAG normal text: Fail
Greyscale equivalent#2B2B2B
Inverted#DDD5AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#163057no red cones; affects about 1% of men; ΔE 6.3 from the original
Deuteranopia#102B54no green cones; the most common form, about 1% of men; ΔE 4.8 from the original
Tritanopia#07333Bno blue cones; rare, and affects men and women equally; ΔE 28.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.72:1WCAG large text: AAA
Contrast with black, large text1.53:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.3Midnight blue · ΔE 30.5Black · ΔE 34.8Dark slate grey · ΔE 35.2Steel blue · ΔE 37.4Dim grey · ΔE 39.2
Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.33, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#554D22
Analogous#224355, #342255
Triadic#55222A, #2A5522
Split complementary#553422, #435522
Tetradic#552243, #554D22, #225534

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7986CA
Lighter +30%#5565BB
Lighter +20%#3F4E9E
Lighter +10%#313C79
Darker −10%#131831
Darker −20%#05060C
Darker −30%#000000
Darker −40%#000000
More saturated +25%#132064
Less saturated −25%#313446

Channel breakdown

R34
G42
B85
Red34 (13.3%)
Green42 (16.5%)
Blue85 (33.3%)
Hue230.59°
Saturation (HSL)42.86%
Lightness23.33%
Dominant channelBlue
Hex per channelR 22 · G 2A · B 55

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Every value on this page was computed from “222a55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.