Colour

#00003B

#00003B
Blue
Dark
Nearest: Midnight blue

#00003B is a blue with RGB values 0, 0, 59 and HSL 240°, 100%, 12%. It is a dark colour, so white text on it reaches 19.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00003B#00003B

HEX#00003B

RGBrgb(0, 0, 59)

RGB (0–1)0, 0, 0.2314

RGB percentages0%, 0%, 23.1%

HSLhsl(240, 100%, 11.6%)

HSV / HSBhsv(240, 100%, 23.1%)

CMYK100%, 100%, 0%, 76.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer59

CSS custom property--colour: #00003B;

Brightness & contrast

Relative luminance0.00316WCAG 2.x, 0 is black and 1 is white

Perceived brightness19.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.75:1

Contrast with white19.75:1WCAG normal text: AAA

Contrast with black1.06:1WCAG normal text: Fail

Greyscale equivalent#040404

Inverted#FFFFC4

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000E3Dno red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#00073Ano green cones; the most common form, about 1% of men; ΔE 4.6 from the original

Tritanopia#00131Eno blue cones; rare, and affects men and women equally; ΔE 34 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.75:1WCAG large text: AAA

Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 22.9 Dark slateblue · ΔE 29.5 Rebecca purple · ΔE 39.7 Black · ΔE 40.3 Indigo · ΔE 40.7 Navy · ΔE 41.8

Nearest named CSS colourMidnight blue (#191970)ΔE 22.86, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3B3B00

Analogous#001D3B, #1D003B

Triadic#3B0000, #003B00

Split complementary#3B1D00, #1D3B00

Tetradic#3B001D, #3B3B00, #003B1D

Tints, shades & saturation

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

Lighter +40%#0808FF

Lighter +30%#0000D4

Lighter +20%#0000A1

Lighter +10%#00006E

Darker −10%#000008

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00003B

Less saturated −25%#070734

Channel breakdown

B59

Red0 (0%)

Green0 (0%)

Blue59 (23.1%)

Hue240°

Saturation (HSL)100%

Lightness11.57%

Dominant channelBlue

Hex per channelR 00 · G 00 · B 3B

Keep nerding

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#00003B

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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