Colour

#001C71

#001C71
Blue
Dark
Nearest: Midnight blue

#001C71 is a blue with RGB values 0, 28, 113 and HSL 225°, 100%, 22%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001C71#001C71

HEX#001C71

RGBrgb(0, 28, 113)

RGB (0–1)0, 0.1098, 0.4431

RGB percentages0%, 11%, 44.3%

HSLhsl(225.1, 100%, 22.2%)

HSV / HSBhsv(225.1, 100%, 44.3%)

CMYK100%, 75.2%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,281

CSS custom property--colour: #001C71;

Brightness & contrast

Relative luminance0.02023WCAG 2.x, 0 is black and 1 is white

Perceived brightness43.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 14.95:1

Contrast with white14.95:1WCAG normal text: AAA

Contrast with black1.4:1WCAG normal text: Fail

Greyscale equivalent#1C1C1C

Inverted#FFE38E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002C74no red cones; affects about 1% of men; ΔE 12.6 from the original

Deuteranopia#002270no green cones; the most common form, about 1% of men; ΔE 5.7 from the original

Tritanopia#003544no blue cones; rare, and affects men and women equally; ΔE 53.2 from the original

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

Contrast with white, large text14.95:1WCAG large text: AAA

Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 3.5 Dark slateblue · ΔE 17.6 Rebecca purple · ΔE 22.8 Navy · ΔE 23.8 Indigo · ΔE 23.9 Dark blue · ΔE 28.4

Nearest named CSS colourMidnight blue (#191970)ΔE 3.46, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#715500

Analogous#005471, #1D0071

Triadic#71001C, #1C7100

Split complementary#711D00, #547100

Tetradic#710054, #715500, #00711D

Tints, shades & saturation

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

Lighter +40%#3E6EFF

Lighter +30%#0B47FF

Lighter +20%#0035D7

Lighter +10%#0029A4

Darker −10%#000F3E

Darker −20%#00030B

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001C71

Less saturated −25%#0E2363

Channel breakdown

G28

B113

Red0 (0%)

Green28 (11%)

Blue113 (44.3%)

Hue225.13°

Saturation (HSL)100%

Lightness22.16%

Dominant channelBlue

Hex per channelR 00 · G 1C · B 71

Keep nerding

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#001C71

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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