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Colour

#222F4A

  • #222F4A
  • Blue
  • Dark
  • Nearest: Dark slate grey

#222F4A is a blue with RGB values 34, 47, 74 and HSL 221°, 37%, 21%. It is a dark colour, so white text on it reaches 13.3:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#222F4A#222F4A
HEX#222F4A
RGBrgb(34, 47, 74)
RGB (0–1)0.1333, 0.1843, 0.2902
RGB percentages13.3%, 18.4%, 29%
HSLhsl(220.5, 37%, 21.2%)
HSV / HSBhsv(220.5, 54.1%, 29%)
CMYK54.1%, 36.5%, 0%, 71%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,240,330
CSS custom property--colour: #222F4A;

Brightness & contrast

Relative luminance0.02868WCAG 2.x, 0 is black and 1 is white
Perceived brightness47.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.35:1
Contrast with white13.35:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#DDD0B5

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25314Bno red cones; affects about 1% of men; ΔE 1.2 from the original
Deuteranopia#202E49no green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#113539no blue cones; rare, and affects men and women equally; ΔE 19 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.35:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 24.2Black · ΔE 27.1Dim grey · ΔE 31.2Dark slateblue · ΔE 34.6Slate grey · ΔE 34.7Steel blue · ΔE 36.5
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 24.16, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A3D22
Analogous#22434A, #29224A
Triadic#4A222F, #2F4A22
Split complementary#4A2922, #434A22
Tetradic#4A2243, #4A3D22, #224A29

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#778FC1
Lighter +30%#5472B1
Lighter +20%#425B90
Lighter +10%#32456D
Darker −10%#121927
Darker −20%#020304
Darker −30%#000000
Darker −40%#000000
More saturated +25%#152A58
Less saturated −25%#30343D

Channel breakdown

R34
G47
B74
Red34 (13.3%)
Green47 (18.4%)
Blue74 (29%)
Hue220.5°
Saturation (HSL)37.04%
Lightness21.18%
Dominant channelBlue
Hex per channelR 22 · G 2F · B 4A

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Every value on this page was computed from “222f4a” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.