Colour

#003975

#003975
Blue
Dark
Nearest: Dark slateblue

#003975 is a blue with RGB values 0, 57, 117 and HSL 211°, 100%, 23%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003975#003975

HEX#003975

RGBrgb(0, 57, 117)

RGB (0–1)0, 0.2235, 0.4588

RGB percentages0%, 22.4%, 45.9%

HSLhsl(210.8, 100%, 22.9%)

HSV / HSBhsv(210.8, 100%, 45.9%)

CMYK100%, 51.3%, 0%, 54.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer14,709

CSS custom property--colour: #003975;

Brightness & contrast

Relative luminance0.04211WCAG 2.x, 0 is black and 1 is white

Perceived brightness58.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.4:1

Contrast with white11.4:1WCAG normal text: AAA

Contrast with black1.84:1WCAG normal text: Fail

Greyscale equivalent#313131

Inverted#FFC68A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#133F77no red cones; affects about 1% of men; ΔE 4.1 from the original

Deuteranopia#003574no green cones; the most common form, about 1% of men; ΔE 3.2 from the original

Tritanopia#004851no blue cones; rare, and affects men and women equally; ΔE 37.7 from the original

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

Contrast with white, large text11.4:1WCAG large text: AAA

Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 18.3 Midnight blue · ΔE 26.3 Steel blue · ΔE 31.8 Rebecca purple · ΔE 35.7 Slate blue · ΔE 38.9 Cornflower blue · ΔE 39

Nearest named CSS colourDark slateblue (#483D8B)ΔE 18.3, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#753C00

Analogous#007475, #010075

Triadic#750039, #397500

Split complementary#750200, #737500

Tetradic#750074, #753C00, #007502

Tints, shades & saturation

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

Lighter +40%#429EFF

Lighter +30%#0F84FF

Lighter +20%#006BDB

Lighter +10%#0052A8

Darker −10%#002042

Darker −20%#00070F

Darker −30%#000000

Darker −40%#000000

More saturated +25%#003975

Less saturated −25%#0F3966

Channel breakdown

G57

B117

Red0 (0%)

Green57 (22.4%)

Blue117 (45.9%)

Hue210.77°

Saturation (HSL)100%

Lightness22.94%

Dominant channelBlue

Hex per channelR 00 · G 39 · B 75

Keep nerding

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#003975

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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