Colour

#12223B

#12223B
Blue
Dark
Nearest: Black

#12223B is a blue with RGB values 18, 34, 59 and HSL 217°, 53%, 15%. It is a dark colour, so white text on it reaches 15.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#12223B#12223B

HEX#12223B

RGBrgb(18, 34, 59)

RGB (0–1)0.0706, 0.1333, 0.2314

RGB percentages7.1%, 13.3%, 23.1%

HSLhsl(216.6, 53.2%, 15.1%)

HSV / HSBhsv(216.6, 69.5%, 23.1%)

CMYK69.5%, 42.4%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,188,411

CSS custom property--colour: #12223B;

Brightness & contrast

Relative luminance0.01588WCAG 2.x, 0 is black and 1 is white

Perceived brightness34.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.94:1

Contrast with white15.94:1WCAG normal text: AAA

Contrast with black1.32:1WCAG normal text: Fail

Greyscale equivalent#202020

Inverted#EDDDC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#17243Cno red cones; affects about 1% of men; ΔE 1.5 from the original

Deuteranopia#12203Ano green cones; the most common form, about 1% of men; ΔE 1.4 from the original

Tritanopia#00282Bno blue cones; rare, and affects men and women equally; ΔE 19.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.94:1WCAG large text: AAA

Contrast with black, large text1.32:1WCAG large text: Fail

Named colours

Black · ΔE 22.6 Dark slate grey · ΔE 27.3 Dim grey · ΔE 36.2 Dark slateblue · ΔE 37.8 Slate grey · ΔE 40.7 Steel blue · ΔE 42.3

Nearest named CSS colourBlack (#000000)ΔE 22.58, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B2B12

Analogous#12363B, #17123B

Triadic#3B1222, #223B12

Split complementary#3B1712, #363B12

Tetradic#3B1236, #3B2B12, #123B17

Tints, shades & saturation

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

Lighter +40%#507FC9

Lighter +30%#3666B0

Lighter +20%#2A4F89

Lighter +10%#1E3962

Darker −10%#060B14

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#082045

Less saturated −25%#1C2431

Channel breakdown

R18

G34

B59

Red18 (7.1%)

Green34 (13.3%)

Blue59 (23.1%)

Hue216.59°

Saturation (HSL)53.25%

Lightness15.1%

Dominant channelBlue

Hex per channelR 12 · G 22 · B 3B

Keep nerding

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

#12223B

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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