Recognised as Colour

#001DB1

#001DB1
Blue
Dark
Nearest: Dark blue

#001DB1 is a blue with RGB values 0, 29, 177 and HSL 230°, 100%, 35%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#001DB1#001DB1

HEX#001DB1

RGBrgb(0, 29, 177)

RGB (0–1)0, 0.1137, 0.6941

RGB percentages0%, 11.4%, 69.4%

HSLhsl(230.2, 100%, 34.7%)

HSV / HSBhsv(230.2, 100%, 69.4%)

CMYK100%, 83.6%, 0%, 30.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,601

CSS custom property--colour: #001DB1;

Brightness & contrast

Relative luminance0.04053WCAG 2.x, 0 is black and 1 is white

Perceived brightness63.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.6:1

Contrast with white11.6:1WCAG normal text: AAA

Contrast with black1.81:1WCAG normal text: Fail

Greyscale equivalent#222222

Inverted#FFE24E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0041B5no red cones; affects about 1% of men; ΔE 24.4 from the original

Deuteranopia#0030AFno green cones; the most common form, about 1% of men; ΔE 13.7 from the original

Tritanopia#004E69no blue cones; rare, and affects men and women equally; ΔE 82.5 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text11.6:1WCAG large text: AAA

Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark blue · ΔE 12.2 Navy · ΔE 16.6 Medium blue · ΔE 22.1 Indigo · ΔE 23.8 Blue violet · ΔE 26.6 Dark orchid · ΔE 29.5

Nearest named CSS colourDark blue (#00008B)ΔE 12.2, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B19400

Analogous#0076B1, #3B00B1

Triadic#B1001D, #1DB100

Split complementary#B13B00, #76B100

Tetradic#B10076, #B19400, #00B13B

Tints, shades & saturation

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

Lighter +40%#7E93FF

Lighter +30%#4B68FF

Lighter +20%#183EFF

Lighter +10%#0025E4

Darker −10%#00157E

Darker −20%#000C4B

Darker −30%#000418

Darker −40%#000000

More saturated +25%#001DB1

Less saturated −25%#162C9B

Channel breakdown

G29

B177

Red0 (0%)

Green29 (11.4%)

Blue177 (69.4%)

Hue230.17°

Saturation (HSL)100%

Lightness34.71%

Dominant channelBlue

Hex per channelR 00 · G 1D · B B1

Keep nerding

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

#001DB1

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

Nerdulate something else