Recognised as Colour

#223F54

#223F54
Blue
Dark
Nearest: Dark slate grey

#223F54 is a blue with RGB values 34, 63, 84 and HSL 205°, 42%, 23%. It is a dark colour, so white text on it reaches 11:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#223F54#223F54

HEX#223F54

RGBrgb(34, 63, 84)

RGB (0–1)0.1333, 0.2471, 0.3294

RGB percentages13.3%, 24.7%, 32.9%

HSLhsl(205.2, 42.4%, 23.1%)

HSV / HSBhsv(205.2, 59.5%, 32.9%)

CMYK59.5%, 25%, 0%, 67.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,244,436

CSS custom property--colour: #223F54;

Brightness & contrast

Relative luminance0.04535WCAG 2.x, 0 is black and 1 is white

Perceived brightness59 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.01:1

Contrast with white11.01:1WCAG normal text: AAA

Contrast with black1.91:1WCAG normal text: Fail

Greyscale equivalent#3A3A3A

Inverted#DDC0AB

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#363F55no red cones; affects about 1% of men; ΔE 6.6 from the original

Deuteranopia#2F3A54no green cones; the most common form, about 1% of men; ΔE 7.2 from the original

Tritanopia#014446no blue cones; rare, and affects men and women equally; ΔE 16.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.01:1WCAG large text: AAA

Contrast with black, large text1.91:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 15.7 Dim grey · ΔE 25.1 Slate grey · ΔE 28 Black · ΔE 30.2 Light slate grey · ΔE 31 Steel blue · ΔE 31.6

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 15.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#543722

Analogous#225450, #222654

Triadic#54223F, #3F5422

Split complementary#542226, #545022

Tetradic#502254, #543722, #265422

Tints, shades & saturation

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

Lighter +40%#79A7C9

Lighter +30%#5590BA

Lighter +20%#3F759D

Lighter +10%#315A78

Darker −10%#132430

Darker −20%#05090B

Darker −30%#000000

Darker −40%#000000

More saturated +25%#134163

Less saturated −25%#313D45

Channel breakdown

R34

G63

B84

Red34 (13.3%)

Green63 (24.7%)

Blue84 (32.9%)

Hue205.2°

Saturation (HSL)42.37%

Lightness23.14%

Dominant channelBlue

Hex per channelR 22 · G 3F · B 54

Keep nerding

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

#223F54

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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