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Recognised as Colour

#222F48

  • #222F48
  • Blue
  • Dark
  • Nearest: Dark slate grey

#222F48 is a blue with RGB values 34, 47, 72 and HSL 219°, 36%, 21%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#222F48#222F48
HEX#222F48
RGBrgb(34, 47, 72)
RGB (0–1)0.1333, 0.1843, 0.2824
RGB percentages13.3%, 18.4%, 28.2%
HSLhsl(219.5, 35.8%, 20.8%)
HSV / HSBhsv(219.5, 52.8%, 28.2%)
CMYK52.8%, 34.7%, 0%, 71.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,240,328
CSS custom property--colour: #222F48;

Brightness & contrast

Relative luminance0.02841WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.39:1
Contrast with white13.39:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#DDD0B7

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#263149no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#212D47no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#133438no blue cones; rare, and affects men and women equally; ΔE 17.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.39:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 23.1Black · ΔE 26.1Dim grey · ΔE 30.5Slate grey · ΔE 34.4Dark slateblue · ΔE 36Steel blue · ΔE 36.9
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 23.05, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#483B22
Analogous#224248, #282248
Triadic#48222F, #2F4822
Split complementary#482822, #424822
Tetradic#482242, #483B22, #224828

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7790BF
Lighter +30%#5573AE
Lighter +20%#435C8D
Lighter +10%#32466B
Darker −10%#121825
Darker −20%#010203
Darker −30%#000000
Darker −40%#000000
More saturated +25%#152B55
Less saturated −25%#2F333B

Channel breakdown

R34
G47
B72
Red34 (13.3%)
Green47 (18.4%)
Blue72 (28.2%)
Hue219.47°
Saturation (HSL)35.85%
Lightness20.78%
Dominant channelBlue
Hex per channelR 22 · G 2F · B 48

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Every value on this page was computed from “222f48” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.