Colour

#223A75

#223A75
Blue
Dark
Nearest: Dark slateblue

#223A75 is a blue with RGB values 34, 58, 117 and HSL 223°, 55%, 30%. It is a dark colour, so white text on it reaches 10.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#223A75#223A75

HEX#223A75

RGBrgb(34, 58, 117)

RGB (0–1)0.1333, 0.2275, 0.4588

RGB percentages13.3%, 22.7%, 45.9%

HSLhsl(222.7, 55%, 29.6%)

HSV / HSBhsv(222.7, 70.9%, 45.9%)

CMYK70.9%, 50.4%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,243,189

CSS custom property--colour: #223A75;

Brightness & contrast

Relative luminance0.04651WCAG 2.x, 0 is black and 1 is white

Perceived brightness62.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.88:1

Contrast with white10.88:1WCAG normal text: AAA

Contrast with black1.93:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#DDC58A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1A4177no red cones; affects about 1% of men; ΔE 6 from the original

Deuteranopia#063974no green cones; the most common form, about 1% of men; ΔE 3.6 from the original

Tritanopia#004852no blue cones; rare, and affects men and women equally; ΔE 37.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text10.88:1WCAG large text: AAA

Contrast with black, large text1.93:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.7 Midnight blue · ΔE 25.4 Steel blue · ΔE 31.6 Rebecca purple · ΔE 33.2 Slate blue · ΔE 37.4 Cornflower blue · ΔE 38.5

Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.71, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#755D22

Analogous#226375, #342275

Triadic#75223A, #3A7522

Split complementary#753422, #637522

Tetradic#752263, #755D22, #227534

Tints, shades & saturation

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

Lighter +40%#87A0DC

Lighter +30%#5F80D1

Lighter +20%#3961C4

Lighter +10%#2D4E9D

Darker −10%#17264D

Darker −20%#0B1326

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0F3288

Less saturated −25%#354262

Channel breakdown

R34

G58

B117

Red34 (13.3%)

Green58 (22.7%)

Blue117 (45.9%)

Hue222.65°

Saturation (HSL)54.97%

Lightness29.61%

Dominant channelBlue

Hex per channelR 22 · G 3A · B 75

Keep nerding

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

#223A75

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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