Colour

#01003A

#01003A
Blue
Dark
Nearest: Midnight blue

#01003A is a blue with RGB values 1, 0, 58 and HSL 241°, 100%, 11%. It is a dark colour, so white text on it reaches 19.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#01003A#01003A

HEX#01003A

RGBrgb(1, 0, 58)

RGB (0–1)0.0039, 0, 0.2275

RGB percentages0.4%, 0%, 22.7%

HSLhsl(241, 100%, 11.4%)

HSV / HSBhsv(241, 100%, 22.7%)

CMYK98.3%, 100%, 0%, 77.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer65,594

CSS custom property--colour: #01003A;

Brightness & contrast

Relative luminance0.00312WCAG 2.x, 0 is black and 1 is white

Perceived brightness19.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 19.77:1

Contrast with white19.77:1WCAG normal text: AAA

Contrast with black1.06:1WCAG normal text: Fail

Greyscale equivalent#040404

Inverted#FEFFC5

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#000E3Cno red cones; affects about 1% of men; ΔE 6.7 from the original

Deuteranopia#000739no green cones; the most common form, about 1% of men; ΔE 4.8 from the original

Tritanopia#00121Eno blue cones; rare, and affects men and women equally; ΔE 32.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text19.77:1WCAG large text: AAA

Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 23.5 Dark slateblue · ΔE 29.8 Black · ΔE 39.5 Rebecca purple · ΔE 40.2 Indigo · ΔE 41.3 Navy · ΔE 42.6

Nearest named CSS colourMidnight blue (#191970)ΔE 23.52, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#393A00

Analogous#001C3A, #1E003A

Triadic#3A0100, #003A01

Split complementary#3A1E00, #1C3A00

Tetradic#3A001C, #393A00, #003A1E

Tints, shades & saturation

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

Lighter +40%#0B07FF

Lighter +30%#0400D3

Lighter +20%#0300A0

Lighter +10%#02006D

Darker −10%#000007

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#01003A

Less saturated −25%#080733

Channel breakdown

B58

Red1 (0.4%)

Green0 (0%)

Blue58 (22.7%)

Hue241.03°

Saturation (HSL)100%

Lightness11.37%

Dominant channelBlue

Hex per channelR 01 · G 00 · B 3A

Keep nerding

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#01003A

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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