Colour

#222C51

#222C51
Blue
Dark
Nearest: Dark slateblue

#222C51 is a blue with RGB values 34, 44, 81 and HSL 227°, 41%, 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

#222C51#222C51

HEX#222C51

RGBrgb(34, 44, 81)

RGB (0–1)0.1333, 0.1725, 0.3176

RGB percentages13.3%, 17.3%, 31.8%

HSLhsl(227.2, 40.9%, 22.5%)

HSV / HSBhsv(227.2, 58%, 31.8%)

CMYK58%, 45.7%, 0%, 68.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,239,569

CSS custom property--colour: #222C51;

Brightness & contrast

Relative luminance0.02736WCAG 2.x, 0 is black and 1 is white

Perceived brightness47.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 13.57:1

Contrast with white13.57:1WCAG normal text: AAA

Contrast with black1.55:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#DDD3AE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1D3052no red cones; affects about 1% of men; ΔE 4 from the original

Deuteranopia#172C50no green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#0B343Ano blue cones; rare, and affects men and women equally; ΔE 25.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text13.57:1WCAG large text: AAA

Contrast with black, large text1.55:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.1 Dark slate grey · ΔE 31 Black · ΔE 31.7 Midnight blue · ΔE 34.9 Dim grey · ΔE 35.9 Steel blue · ΔE 36.6

Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.06, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#514722

Analogous#224451, #2F2251

Triadic#51222C, #2C5122

Split complementary#512F22, #445122

Tetradic#512244, #514722, #22512F

Tints, shades & saturation

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

Lighter +40%#7889C7

Lighter +30%#556AB7

Lighter +20%#405399

Lighter +10%#314075

Darker −10%#13182D

Darker −20%#040509

Darker −30%#000000

Darker −40%#000000

More saturated +25%#14245F

Less saturated −25%#303443

Channel breakdown

R34

G44

B81

Red34 (13.3%)

Green44 (17.3%)

Blue81 (31.8%)

Hue227.23°

Saturation (HSL)40.87%

Lightness22.55%

Dominant channelBlue

Hex per channelR 22 · G 2C · B 51

Keep nerding

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

#222C51

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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