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Recognised as Colour

#22355B

  • #22355B
  • Blue
  • Dark
  • Nearest: Dark slateblue

#22355B is a blue with RGB values 34, 53, 91 and HSL 220°, 46%, 25%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#22355B#22355B
HEX#22355B
RGBrgb(34, 53, 91)
RGB (0–1)0.1333, 0.2078, 0.3569
RGB percentages13.3%, 20.8%, 35.7%
HSLhsl(220, 45.6%, 24.5%)
HSV / HSBhsv(220, 62.6%, 35.7%)
CMYK62.6%, 41.8%, 0%, 64.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,241,883
CSS custom property--colour: #22355B;

Brightness & contrast

Relative luminance0.03642WCAG 2.x, 0 is black and 1 is white
Perceived brightness54.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.15:1
Contrast with white12.15:1WCAG normal text: AAA
Contrast with black1.73:1WCAG normal text: Fail
Greyscale equivalent#343434
Inverted#DDCAA4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#25385Dno red cones; affects about 1% of men; ΔE 1.6 from the original
Deuteranopia#1E335Ano green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#003D43no blue cones; rare, and affects men and women equally; ΔE 26.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text12.15:1WCAG large text: AAA
Contrast with black, large text1.73:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 27.9Dark slate grey · ΔE 28.9Steel blue · ΔE 32.3Dim grey · ΔE 33.8Black · ΔE 34.1Slate grey · ΔE 34.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 27.89, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#5B4822
Analogous#22525B, #2C225B
Triadic#5B2235, #355B22
Split complementary#5B2C22, #525B22
Tetradic#5B2252, #5B4822, #225B2C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7B97CE
Lighter +30%#5679C0
Lighter +20%#3E60A5
Lighter +10%#304B80
Darker −10%#141F36
Darker −20%#060A11
Darker −30%#000000
Darker −40%#000000
More saturated +25%#12306B
Less saturated −25%#323A4B

Channel breakdown

R34
G53
B91
Red34 (13.3%)
Green53 (20.8%)
Blue91 (35.7%)
Hue220°
Saturation (HSL)45.6%
Lightness24.51%
Dominant channelBlue
Hex per channelR 22 · G 35 · B 5B

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Every value on this page was computed from “22355b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.