Colour

#0400CB

#0400CB
Blue
Dark
Nearest: Medium blue

#0400CB is a blue with RGB values 4, 0, 203 and HSL 241°, 100%, 40%. It is a dark colour, so white text on it reaches 11.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#0400CB#0400CB

HEX#0400CB

RGBrgb(4, 0, 203)

RGB (0–1)0.0157, 0, 0.7961

RGB percentages1.6%, 0%, 79.6%

HSLhsl(241.2, 100%, 39.8%)

HSV / HSBhsv(241.2, 100%, 79.6%)

CMYK98%, 100%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer262,347

CSS custom property--colour: #0400CB;

Brightness & contrast

Relative luminance0.04338WCAG 2.x, 0 is black and 1 is white

Perceived brightness68.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.24:1

Contrast with white11.24:1WCAG normal text: AAA

Contrast with black1.87:1WCAG normal text: Fail

Greyscale equivalent#101010

Inverted#FBFF34

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0045D0no red cones; affects about 1% of men; ΔE 33.8 from the original

Deuteranopia#002FC8no green cones; the most common form, about 1% of men; ΔE 21.2 from the original

Tritanopia#005476no blue cones; rare, and affects men and women equally; ΔE 99.9 from the original

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

Contrast with white, large text11.24:1WCAG large text: AAA

Contrast with black, large text1.87:1WCAG large text: Fail

Named colours

Medium blue · ΔE 1 Blue · ΔE 22.5 Blue violet · ΔE 23.8 Dark violet · ΔE 26.9 Dark blue · ΔE 29.2 Navy · ΔE 34.4

Nearest named CSS colourMedium blue (#0000CD)ΔE 0.96, indistinguishable to the eye

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C7CB00

Analogous#0061CB, #6A00CB

Triadic#CB0400, #00CB04

Split complementary#CB6A00, #61CB00

Tetradic#CB0061, #C7CB00, #00CB6A

Tints, shades & saturation

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

Lighter +40%#9A98FF

Lighter +30%#6865FF

Lighter +20%#3632FF

Lighter +10%#0500FE

Darker −10%#030098

Darker −20%#020065

Darker −30%#010032

Darker −40%#000000

More saturated +25%#0400CB

Less saturated −25%#1C19B2

Channel breakdown

B203

Red4 (1.6%)

Green0 (0%)

Blue203 (79.6%)

Hue241.18°

Saturation (HSL)100%

Lightness39.8%

Dominant channelBlue

Hex per channelR 04 · G 00 · B CB

Keep nerding

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

#0400CB

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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