Colour

#003170

#003170
Blue
Dark
Nearest: Dark slateblue

#003170 is a blue with RGB values 0, 49, 112 and HSL 214°, 100%, 22%. It is a dark colour, so white text on it reaches 12.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003170#003170

HEX#003170

RGBrgb(0, 49, 112)

RGB (0–1)0, 0.1922, 0.4392

RGB percentages0%, 19.2%, 43.9%

HSLhsl(213.8, 100%, 22%)

HSV / HSBhsv(213.8, 100%, 43.9%)

CMYK100%, 56.3%, 0%, 56.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,656

CSS custom property--colour: #003170;

Brightness & contrast

Relative luminance0.03366WCAG 2.x, 0 is black and 1 is white

Perceived brightness53.3 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.55:1

Contrast with white12.55:1WCAG normal text: AAA

Contrast with black1.67:1WCAG normal text: Fail

Greyscale equivalent#2B2B2B

Inverted#FFCE8F

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003872no red cones; affects about 1% of men; ΔE 5.4 from the original

Deuteranopia#002F6Fno green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#00414Bno blue cones; rare, and affects men and women equally; ΔE 39.9 from the original

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

Contrast with white, large text12.55:1WCAG large text: AAA

Contrast with black, large text1.67:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 16.3 Midnight blue · ΔE 21.7 Rebecca purple · ΔE 32.9 Steel blue · ΔE 36.3 Slate blue · ΔE 37.6 Royal blue · ΔE 38.6

Nearest named CSS colourDark slateblue (#483D8B)ΔE 16.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#703F00

Analogous#006970, #070070

Triadic#700031, #317000

Split complementary#700700, #697000

Tetradic#700069, #703F00, #007007

Tints, shades & saturation

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

Lighter +40%#3D92FF

Lighter +30%#0A75FF

Lighter +20%#005ED6

Lighter +10%#0047A3

Darker −10%#001B3D

Darker −20%#00040A

Darker −30%#000000

Darker −40%#000000

More saturated +25%#003170

Less saturated −25%#0E3362

Channel breakdown

G49

B112

Red0 (0%)

Green49 (19.2%)

Blue112 (43.9%)

Hue213.75°

Saturation (HSL)100%

Lightness21.96%

Dominant channelBlue

Hex per channelR 00 · G 31 · B 70

Keep nerding

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#003170

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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