Colour

#001B50

#001B50
Blue
Dark
Nearest: Midnight blue

#001B50 is a blue with RGB values 0, 27, 80 and HSL 220°, 100%, 16%. It is a dark colour, so white text on it reaches 16.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001B50#001B50

HEX#001B50

RGBrgb(0, 27, 80)

RGB (0–1)0, 0.1059, 0.3137

RGB percentages0%, 10.6%, 31.4%

HSLhsl(219.8, 100%, 15.7%)

HSV / HSBhsv(219.8, 100%, 31.4%)

CMYK100%, 66.3%, 0%, 68.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer6,992

CSS custom property--colour: #001B50;

Brightness & contrast

Relative luminance0.01363WCAG 2.x, 0 is black and 1 is white

Perceived brightness34 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.5:1

Contrast with white16.5:1WCAG normal text: AAA

Contrast with black1.27:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#FFE4AF

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002352no red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#001B4Fno green cones; the most common form, about 1% of men; ΔE 0.7 from the original

Tritanopia#002932no blue cones; rare, and affects men and women equally; ΔE 35.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.5:1WCAG large text: AAA

Contrast with black, large text1.27:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 22.6 Dark slateblue · ΔE 23.2 Rebecca purple · ΔE 37.2 Black · ΔE 39.9 Indigo · ΔE 42 Navy · ΔE 44.1

Nearest named CSS colourMidnight blue (#191970)ΔE 22.62, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#503500

Analogous#004350, #0D0050

Triadic#50001B, #1B5000

Split complementary#500D00, #435000

Tetradic#500043, #503500, #00500D

Tints, shades & saturation

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

Lighter +40%#1D69FF

Lighter +30%#004FE9

Lighter +20%#003DB6

Lighter +10%#002C83

Darker −10%#000A1D

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#001B50

Less saturated −25%#0A1E46

Channel breakdown

G27

B80

Red0 (0%)

Green27 (10.6%)

Blue80 (31.4%)

Hue219.75°

Saturation (HSL)100%

Lightness15.69%

Dominant channelBlue

Hex per channelR 00 · G 1B · B 50

Keep nerding

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

#001B50

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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