Recognised as Colour

#12203B

#12203B
Blue
Dark
Nearest: Black

#12203B is a blue with RGB values 18, 32, 59 and HSL 220°, 53%, 15%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#12203B#12203B

HEX#12203B

RGBrgb(18, 32, 59)

RGB (0–1)0.0706, 0.1255, 0.2314

RGB percentages7.1%, 12.5%, 23.1%

HSLhsl(219.5, 53.2%, 15.1%)

HSV / HSBhsv(219.5, 69.5%, 23.1%)

CMYK69.5%, 45.8%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,187,899

CSS custom property--colour: #12203B;

Brightness & contrast

Relative luminance0.01477WCAG 2.x, 0 is black and 1 is white

Perceived brightness33.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.21:1

Contrast with white16.21:1WCAG normal text: AAA

Contrast with black1.3:1WCAG normal text: Fail

Greyscale equivalent#1F1F1F

Inverted#EDDFC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#14223Cno red cones; affects about 1% of men; ΔE 1.3 from the original

Deuteranopia#0F1F3Ano green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#00262Ano blue cones; rare, and affects men and women equally; ΔE 20.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.21:1WCAG large text: AAA

Contrast with black, large text1.3:1WCAG large text: Fail

Named colours

Black · ΔE 23.3 Dark slate grey · ΔE 29.1 Dark slateblue · ΔE 36.5 Dim grey · ΔE 37.5 Midnight blue · ΔE 41.1 Slate grey · ΔE 41.8

Nearest named CSS colourBlack (#000000)ΔE 23.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B2D12

Analogous#12353B, #18123B

Triadic#3B1220, #203B12

Split complementary#3B1812, #353B12

Tetradic#3B1235, #3B2D12, #123B18

Tints, shades & saturation

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

Lighter +40%#5079C9

Lighter +30%#3660B0

Lighter +20%#2A4A89

Lighter +10%#1E3562

Darker −10%#060B14

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#081D45

Less saturated −25%#1C2331

Channel breakdown

R18

G32

B59

Red18 (7.1%)

Green32 (12.5%)

Blue59 (23.1%)

Hue219.51°

Saturation (HSL)53.25%

Lightness15.1%

Dominant channelBlue

Hex per channelR 12 · G 20 · B 3B

Keep nerding

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

#12203B

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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