Colour

#222B55

#222B55
Blue
Dark
Nearest: Dark slateblue

#222B55 is a blue with RGB values 34, 43, 85 and HSL 229°, 43%, 23%. It is a dark colour, so white text on it reaches 13.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#222B55#222B55

HEX#222B55

RGBrgb(34, 43, 85)

RGB (0–1)0.1333, 0.1686, 0.3333

RGB percentages13.3%, 16.9%, 33.3%

HSLhsl(229.4, 42.9%, 23.3%)

HSV / HSBhsv(229.4, 60%, 33.3%)

CMYK60%, 49.4%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,239,317

CSS custom property--colour: #222B55;

Brightness & contrast

Relative luminance0.02724WCAG 2.x, 0 is black and 1 is white

Perceived brightness47.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.59:1

Contrast with white13.59:1WCAG normal text: AAA

Contrast with black1.54:1WCAG normal text: Fail

Greyscale equivalent#2C2C2C

Inverted#DDD4AA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#183057no red cones; affects about 1% of men; ΔE 5.2 from the original

Deuteranopia#122C54no green cones; the most common form, about 1% of men; ΔE 4.5 from the original

Tritanopia#07343Bno 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 text13.59:1WCAG large text: AAA

Contrast with black, large text1.54:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.9 Midnight blue · ΔE 31.4 Dark slate grey · ΔE 34.3 Black · ΔE 34.4 Steel blue · ΔE 36.9 Dim grey · ΔE 38.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.93, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#554C22

Analogous#224555, #322255

Triadic#55222B, #2B5522

Split complementary#553222, #455522

Tetradic#552245, #554C22, #225532

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#7988CA

Lighter +30%#5567BB

Lighter +20%#3F509E

Lighter +10%#313D79

Darker −10%#131931

Darker −20%#05060C

Darker −30%#000000

Darker −40%#000000

More saturated +25%#132164

Less saturated −25%#313546

Channel breakdown

R34

G43

B85

Red34 (13.3%)

Green43 (16.9%)

Blue85 (33.3%)

Hue229.41°

Saturation (HSL)42.86%

Lightness23.33%

Dominant channelBlue

Hex per channelR 22 · G 2B · B 55

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#222B55

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

Nerdulate something else