Colour

#00458B

#00458B
Blue
Dark
Nearest: Dark slateblue

#00458B is a blue with RGB values 0, 69, 139 and HSL 210°, 100%, 27%. It is a dark colour, so white text on it reaches 9.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#00458B#00458B

HEX#00458B

RGBrgb(0, 69, 139)

RGB (0–1)0, 0.2706, 0.5451

RGB percentages0%, 27.1%, 54.5%

HSLhsl(210.2, 100%, 27.3%)

HSV / HSBhsv(210.2, 100%, 54.5%)

CMYK100%, 50.4%, 0%, 45.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer17,803

CSS custom property--colour: #00458B;

Brightness & contrast

Relative luminance0.0612WCAG 2.x, 0 is black and 1 is white

Perceived brightness70.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.44:1

Contrast with white9.44:1WCAG normal text: AAA

Contrast with black2.22:1WCAG normal text: Fail

Greyscale equivalent#3B3B3B

Inverted#FFBA74

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#194C8Eno red cones; affects about 1% of men; ΔE 4.3 from the original

Deuteranopia#00418Ano green cones; the most common form, about 1% of men; ΔE 3.1 from the original

Tritanopia#005661no blue cones; rare, and affects men and women equally; ΔE 42.3 from the original

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

Contrast with white, large text9.44:1WCAG large text: AAA

Contrast with black, large text2.22:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15.8 Midnight blue · ΔE 26 Steel blue · ΔE 29.5 Royal blue · ΔE 32.1 Cornflower blue · ΔE 32.7 Rebecca purple · ΔE 32.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 15.82, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8B4600

Analogous#008B8B, #00008B

Triadic#8B0045, #458B00

Split complementary#8B0000, #8B8B00

Tetradic#8B008B, #8B4600, #008B00

Tints, shades & saturation

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

Lighter +40%#58ABFF

Lighter +30%#2591FF

Lighter +20%#0078F1

Lighter +10%#005EBE

Darker −10%#002C58

Darker −20%#001225

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00458B

Less saturated −25%#11457A

Channel breakdown

G69

B139

Red0 (0%)

Green69 (27.1%)

Blue139 (54.5%)

Hue210.22°

Saturation (HSL)100%

Lightness27.25%

Dominant channelBlue

Hex per channelR 00 · G 45 · B 8B

Keep nerding

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#00458B

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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