Colour

#002F81

#002F81
Blue
Dark
Nearest: Midnight blue

#002F81 is a blue with RGB values 0, 47, 129 and HSL 218°, 100%, 25%. It is a dark colour, so white text on it reaches 12.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#002F81#002F81

HEX#002F81

RGBrgb(0, 47, 129)

RGB (0–1)0, 0.1843, 0.5059

RGB percentages0%, 18.4%, 50.6%

HSLhsl(218.1, 100%, 25.3%)

HSV / HSBhsv(218.1, 100%, 50.6%)

CMYK100%, 63.6%, 0%, 49.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,161

CSS custom property--colour: #002F81;

Brightness & contrast

Relative luminance0.03618WCAG 2.x, 0 is black and 1 is white

Perceived brightness56.5 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.18:1

Contrast with white12.18:1WCAG normal text: AAA

Contrast with black1.72:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#FFD07E

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003B84no red cones; affects about 1% of men; ΔE 9.3 from the original

Deuteranopia#00307Fno green cones; the most common form, about 1% of men; ΔE 2.1 from the original

Tritanopia#004553no blue cones; rare, and affects men and women equally; ΔE 50.4 from the original

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

Contrast with white, large text12.18:1WCAG large text: AAA

Contrast with black, large text1.72:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.9 Dark slateblue · ΔE 12.2 Rebecca purple · ΔE 23.8 Slate blue · ΔE 28.2 Royal blue · ΔE 30.2 Indigo · ΔE 30.2

Nearest named CSS colourMidnight blue (#191970)ΔE 11.94, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#815200

Analogous#007081, #110081

Triadic#81002F, #2F8100

Split complementary#811100, #708100

Tetradic#810070, #815200, #008111

Tints, shades & saturation

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

Lighter +40%#4E8EFF

Lighter +30%#1B6EFF

Lighter +20%#0054E7

Lighter +10%#0042B4

Darker −10%#001C4E

Darker −20%#000A1B

Darker −30%#000000

Darker −40%#000000

More saturated +25%#002F81

Less saturated −25%#103371

Channel breakdown

G47

B129

Red0 (0%)

Green47 (18.4%)

Blue129 (50.6%)

Hue218.14°

Saturation (HSL)100%

Lightness25.29%

Dominant channelBlue

Hex per channelR 00 · G 2F · B 81

Keep nerding

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#002F81

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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