Colour

#003CBF

#003CBF
Blue
Dark
Nearest: Slate blue

#003CBF is a blue with RGB values 0, 60, 191 and HSL 221°, 100%, 37%. It is a dark colour, so white text on it reaches 8.8:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#003CBF#003CBF

HEX#003CBF

RGBrgb(0, 60, 191)

RGB (0–1)0, 0.2353, 0.749

RGB percentages0%, 23.5%, 74.9%

HSLhsl(221.2, 100%, 37.5%)

HSV / HSBhsv(221.2, 100%, 74.9%)

CMYK100%, 68.6%, 0%, 25.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer15,551

CSS custom property--colour: #003CBF;

Brightness & contrast

Relative luminance0.06993WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.75:1

Contrast with white8.75:1WCAG normal text: AAA

Contrast with black2.4:1WCAG normal text: Fail

Greyscale equivalent#393939

Inverted#FFC340

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0053C3no red cones; affects about 1% of men; ΔE 17 from the original

Deuteranopia#0042BDno green cones; the most common form, about 1% of men; ΔE 5.9 from the original

Tritanopia#006179no blue cones; rare, and affects men and women equally; ΔE 74.1 from the original

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

Contrast with white, large text8.75:1WCAG large text: AAA

Contrast with black, large text2.4:1WCAG large text: Fail

Named colours

Slate blue · ΔE 19.7 Royal blue · ΔE 20.9 Dark blue · ΔE 21.5 Medium slateblue · ΔE 21.6 Navy · ΔE 22.4 Rebecca purple · ΔE 25.3

Nearest named CSS colourSlate blue (#6A5ACD)ΔE 19.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#BF8300

Analogous#009CBF, #2300BF

Triadic#BF003C, #3CBF00

Split complementary#BF2300, #9CBF00

Tetradic#BF009C, #BF8300, #00BF23

Tints, shades & saturation

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

Lighter +40%#8CB0FF

Lighter +30%#598DFF

Lighter +20%#266AFF

Lighter +10%#004CF2

Darker −10%#002C8C

Darker −20%#001C59

Darker −30%#000C26

Darker −40%#000000

More saturated +25%#003CBF

Less saturated −25%#1845A7

Channel breakdown

G60

B191

Red0 (0%)

Green60 (23.5%)

Blue191 (74.9%)

Hue221.15°

Saturation (HSL)100%

Lightness37.45%

Dominant channelBlue

Hex per channelR 00 · G 3C · B BF

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#003CBF

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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