Colour

#00308E

#00308E
Blue
Dark
Nearest: Midnight blue

#00308E is a blue with RGB values 0, 48, 142 and HSL 220°, 100%, 28%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#00308E#00308E

HEX#00308E

RGBrgb(0, 48, 142)

RGB (0–1)0, 0.1882, 0.5569

RGB percentages0%, 18.8%, 55.7%

HSLhsl(219.7, 100%, 27.8%)

HSV / HSBhsv(219.7, 100%, 55.7%)

CMYK100%, 66.2%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer12,430

CSS custom property--colour: #00308E;

Brightness & contrast

Relative luminance0.04067WCAG 2.x, 0 is black and 1 is white

Perceived brightness60.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.58:1

Contrast with white11.58:1WCAG normal text: AAA

Contrast with black1.81:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#FFCF71

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#003F91no red cones; affects about 1% of men; ΔE 11.7 from the original

Deuteranopia#00338Cno green cones; the most common form, about 1% of men; ΔE 3.8 from the original

Tritanopia#00495Ano blue cones; rare, and affects men and women equally; ΔE 56.2 from the original

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

Contrast with white, large text11.58:1WCAG large text: AAA

Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11.2 Dark slateblue · ΔE 15 Rebecca purple · ΔE 20.5 Slate blue · ΔE 23.6 Navy · ΔE 25.5 Indigo · ΔE 25.5

Nearest named CSS colourMidnight blue (#191970)ΔE 11.23, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#8E5E00

Analogous#00778E, #17008E

Triadic#8E0030, #308E00

Split complementary#8E1700, #778E00

Tetradic#8E0077, #8E5E00, #008E17

Tints, shades & saturation

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

Lighter +40%#5B92FF

Lighter +30%#2871FF

Lighter +20%#0052F4

Lighter +10%#0041C1

Darker −10%#001F5B

Darker −20%#000E28

Darker −30%#000000

Darker −40%#000000

More saturated +25%#00308E

Less saturated −25%#12367C

Channel breakdown

G48

B142

Red0 (0%)

Green48 (18.8%)

Blue142 (55.7%)

Hue219.72°

Saturation (HSL)100%

Lightness27.84%

Dominant channelBlue

Hex per channelR 00 · G 30 · B 8E

Keep nerding

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#00308E

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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