Colour

#0030CB

#0030CB
Blue
Dark
Nearest: Dark blue

#0030CB is a blue with RGB values 0, 48, 203 and HSL 226°, 100%, 40%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0030CB#0030CB

HEX#0030CB

RGBrgb(0, 48, 203)

RGB (0–1)0, 0.1882, 0.7961

RGB percentages0%, 18.8%, 79.6%

HSLhsl(225.8, 100%, 39.8%)

HSV / HSBhsv(225.8, 100%, 79.6%)

CMYK100%, 76.4%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,491

CSS custom property--colour: #0030CB;

Brightness & contrast

Relative luminance0.06426WCAG 2.x, 0 is black and 1 is white

Perceived brightness77.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.19:1

Contrast with white9.19:1WCAG normal text: AAA

Contrast with black2.29:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#FFCF34

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0051CFno red cones; affects about 1% of men; ΔE 23.5 from the original

Deuteranopia#003EC8no green cones; the most common form, about 1% of men; ΔE 11.7 from the original

Tritanopia#005F7Cno blue cones; rare, and affects men and women equally; ΔE 85.3 from the original

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

Contrast with white, large text9.19:1WCAG large text: AAA

Contrast with black, large text2.29:1WCAG large text: Fail

Named colours

Dark blue · ΔE 20.1 Medium blue · ΔE 21.3 Navy · ΔE 24.1 Blue violet · ΔE 24.4 Medium slateblue · ΔE 28.1 Dark orchid · ΔE 29.3

Nearest named CSS colourDark blue (#00008B)ΔE 20.1, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CB9B00

Analogous#0096CB, #3500CB

Triadic#CB0030, #30CB00

Split complementary#CB3500, #96CB00

Tetradic#CB0096, #CB9B00, #00CB35

Tints, shades & saturation

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

Lighter +40%#98B0FF

Lighter +30%#6589FF

Lighter +20%#3262FF

Lighter +10%#003CFE

Darker −10%#002498

Darker −20%#001865

Darker −30%#000C32

Darker −40%#000000

More saturated +25%#0030CB

Less saturated −25%#193DB2

Channel breakdown

G48

B203

Red0 (0%)

Green48 (18.8%)

Blue203 (79.6%)

Hue225.81°

Saturation (HSL)100%

Lightness39.8%

Dominant channelBlue

Hex per channelR 00 · G 30 · B CB

Keep nerding

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

#0030CB

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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