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Colour

#222F77

  • #222F77
  • Blue
  • Dark
  • Nearest: Dark slateblue

#222F77 is a blue with RGB values 34, 47, 119 and HSL 231°, 56%, 30%. It is a dark colour, so white text on it reaches 12.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#222F77#222F77
HEX#222F77
RGBrgb(34, 47, 119)
RGB (0–1)0.1333, 0.1843, 0.4667
RGB percentages13.3%, 18.4%, 46.7%
HSLhsl(230.8, 55.6%, 30%)
HSV / HSBhsv(230.8, 71.4%, 46.7%)
CMYK71.4%, 60.5%, 0%, 53.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,240,375
CSS custom property--colour: #222F77;

Brightness & contrast

Relative luminance0.03705WCAG 2.x, 0 is black and 1 is white
Perceived brightness57.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.06:1
Contrast with white12.06:1WCAG normal text: AAA
Contrast with black1.74:1WCAG normal text: Fail
Greyscale equivalent#313131
Inverted#DDD088

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003A79no red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#003276no green cones; the most common form, about 1% of men; ΔE 6 from the original
Tritanopia#00414Eno blue cones; rare, and affects men and women equally; ΔE 45.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.06:1WCAG large text: AAA
Contrast with black, large text1.74:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 9.8Midnight blue · ΔE 14.6Rebecca purple · ΔE 24.8Slate blue · ΔE 31.1Indigo · ΔE 32.7Royal blue · ΔE 34.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 9.77, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#776A22
Analogous#225977, #402277
Triadic#77222F, #2F7722
Split complementary#774022, #597722
Tetradic#772259, #776A22, #227740

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8895DD
Lighter +30%#6072D2
Lighter +20%#394EC6
Lighter +10%#2D3F9F
Darker −10%#171F4F
Darker −20%#0B1028
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0F228A
Less saturated −25%#353C64

Channel breakdown

R34
G47
B119
Red34 (13.3%)
Green47 (18.4%)
Blue119 (46.7%)
Hue230.82°
Saturation (HSL)55.56%
Lightness30%
Dominant channelBlue
Hex per channelR 22 · G 2F · B 77

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Every value on this page was computed from “222f77” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.