Colour

#223F66

#223F66
Blue
Dark
Nearest: Dark slate grey

#223F66 is a blue with RGB values 34, 63, 102 and HSL 214°, 50%, 27%. It is a dark colour, so white text on it reaches 10.7:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#223F66#223F66

HEX#223F66

RGBrgb(34, 63, 102)

RGB (0–1)0.1333, 0.2471, 0.4

RGB percentages13.3%, 24.7%, 40%

HSLhsl(214.4, 50%, 26.7%)

HSV / HSBhsv(214.4, 66.7%, 40%)

CMYK66.7%, 38.2%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,244,454

CSS custom property--colour: #223F66;

Brightness & contrast

Relative luminance0.04854WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.66:1

Contrast with white10.66:1WCAG normal text: AAA

Contrast with black1.97:1WCAG normal text: Fail

Greyscale equivalent#3C3C3C

Inverted#DDC099

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#2E4268no red cones; affects about 1% of men; ΔE 2.7 from the original

Deuteranopia#253B65no green cones; the most common form, about 1% of men; ΔE 3.4 from the original

Tritanopia#00484Dno blue cones; rare, and affects men and women equally; ΔE 26.9 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.66:1WCAG large text: AAA

Contrast with black, large text1.97:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 27.2 Steel blue · ΔE 27.7 Dark slateblue · ΔE 28.5 Slate grey · ΔE 31.2 Dim grey · ΔE 31.9 Light slate grey · ΔE 33.6

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 27.21, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#664922

Analogous#226166, #272266

Triadic#66223F, #3F6622

Split complementary#662722, #616622

Tetradic#662261, #664922, #226627

Tints, shades & saturation

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

Lighter +40%#80A4D5

Lighter +30%#5988C8

Lighter +20%#3B6EB3

Lighter +10%#2F578C

Darker −10%#152740

Darker −20%#09101A

Darker −30%#000000

Darker −40%#000000

More saturated +25%#113C77

Less saturated −25%#334155

Channel breakdown

R34

G63

B102

Red34 (13.3%)

Green63 (24.7%)

Blue102 (40%)

Hue214.41°

Saturation (HSL)50%

Lightness26.67%

Dominant channelBlue

Hex per channelR 22 · G 3F · B 66

Keep nerding

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

#223F66

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

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