Colour

#001C63

#001C63
Blue
Dark
Nearest: Midnight blue

#001C63 is a blue with RGB values 0, 28, 99 and HSL 223°, 100%, 19%. It is a dark colour, so white text on it reaches 15.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001C63#001C63

HEX#001C63

RGBrgb(0, 28, 99)

RGB (0–1)0, 0.1098, 0.3882

RGB percentages0%, 11%, 38.8%

HSLhsl(223, 100%, 19.4%)

HSV / HSBhsv(223, 100%, 38.8%)

CMYK100%, 71.7%, 0%, 61.2%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer7,267

CSS custom property--colour: #001C63;

Brightness & contrast

Relative luminance0.01731WCAG 2.x, 0 is black and 1 is white

Perceived brightness39.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.6:1

Contrast with white15.6:1WCAG normal text: AAA

Contrast with black1.35:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#FFE39C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002865no red cones; affects about 1% of men; ΔE 10.1 from the original

Deuteranopia#001F62no green cones; the most common form, about 1% of men; ΔE 3.3 from the original

Tritanopia#00303Dno blue cones; rare, and affects men and women equally; ΔE 45.3 from the original

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

Contrast with white, large text15.6:1WCAG large text: AAA

Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 10.8 Dark slateblue · ΔE 17.3 Rebecca purple · ΔE 27.9 Indigo · ΔE 31.2 Navy · ΔE 32.3 Slate blue · ΔE 36.7

Nearest named CSS colourMidnight blue (#191970)ΔE 10.78, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#634700

Analogous#004E63, #150063

Triadic#63001C, #1C6300

Split complementary#631500, #4E6300

Tetradic#63004E, #634700, #006315

Tints, shades & saturation

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

Lighter +40%#306BFF

Lighter +30%#0047FC

Lighter +20%#0039C9

Lighter +10%#002A96

Darker −10%#000E30

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001C63

Less saturated −25%#0C2157

Channel breakdown

G28

B99

Red0 (0%)

Green28 (11%)

Blue99 (38.8%)

Hue223.03°

Saturation (HSL)100%

Lightness19.41%

Dominant channelBlue

Hex per channelR 00 · G 1C · B 63

Keep nerding

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

#001C63

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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