Recognised as Colour

#2F00CB

#2F00CB
Blue
Dark
Nearest: Medium blue

#2F00CB is a blue with RGB values 47, 0, 203 and HSL 254°, 100%, 40%. It is a dark colour, so white text on it reaches 10.6:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#2F00CB#2F00CB

HEX#2F00CB

RGBrgb(47, 0, 203)

RGB (0–1)0.1843, 0, 0.7961

RGB percentages18.4%, 0%, 79.6%

HSLhsl(253.9, 100%, 39.8%)

HSV / HSBhsv(253.9, 100%, 79.6%)

CMYK76.8%, 100%, 0%, 20.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,080,395

CSS custom property--colour: #2F00CB;

Brightness & contrast

Relative luminance0.04916WCAG 2.x, 0 is black and 1 is white

Perceived brightness73.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.59:1

Contrast with white10.59:1WCAG normal text: AAA

Contrast with black1.98:1WCAG normal text: Fail

Greyscale equivalent#191919

Inverted#D0FF34

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0047D0no red cones; affects about 1% of men; ΔE 34.2 from the original

Deuteranopia#0036C8no green cones; the most common form, about 1% of men; ΔE 25 from the original

Tritanopia#005376no blue cones; rare, and affects men and women equally; ΔE 97.5 from the original

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

Contrast with white, large text10.59:1WCAG large text: AAA

Contrast with black, large text1.98:1WCAG large text: Fail

Named colours

Medium blue · ΔE 4.1 Blue violet · ΔE 20.5 Dark violet · ΔE 23.5 Blue · ΔE 24.1 Dark blue · ΔE 28.1 Dark orchid · ΔE 32.5

Nearest named CSS colourMedium blue (#0000CD)ΔE 4.05, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#9CCB00

Analogous#0036CB, #9500CB

Triadic#CB2F00, #00CB2F

Split complementary#CB9400, #37CB00

Tetradic#CB0036, #9CCB00, #00CB95

Tints, shades & saturation

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

Lighter +40%#B098FF

Lighter +30%#8965FF

Lighter +20%#6132FF

Lighter +10%#3B00FE

Darker −10%#230098

Darker −20%#170065

Darker −30%#0C0032

Darker −40%#000000

More saturated +25%#2F00CB

Less saturated −25%#3D19B2

Channel breakdown

R47

B203

Red47 (18.4%)

Green0 (0%)

Blue203 (79.6%)

Hue253.89°

Saturation (HSL)100%

Lightness39.8%

Dominant channelBlue

Hex per channelR 2F · G 00 · B CB

Keep nerding

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

#2F00CB

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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