Colour

#1C73FF

#1C73FF
Blue
Dark
Nearest: Royal blue

#1C73FF is a blue with RGB values 28, 115, 255 and HSL 217°, 100%, 55%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1C73FF#1C73FF

HEX#1C73FF

RGBrgb(28, 115, 255)

RGB (0–1)0.1098, 0.451, 1

RGB percentages11%, 45.1%, 100%

HSLhsl(217, 100%, 55.5%)

HSV / HSBhsv(217, 89%, 100%)

CMYK89%, 54.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,864,703

CSS custom property--colour: #1C73FF;

Brightness & contrast

Relative luminance0.19728WCAG 2.x, 0 is black and 1 is white

Perceived brightness124.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.95:1

Contrast with white4.25:1WCAG normal text: Fail

Contrast with black4.95:1WCAG normal text: AA

Greyscale equivalent#6B6B6B

Inverted#E38C00

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0085FFno red cones; affects about 1% of men; ΔE 14.9 from the original

Deuteranopia#0071FCno green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#0096AEno blue cones; rare, and affects men and women equally; ΔE 75.4 from the original

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

Contrast with white, large text4.25:1WCAG large text: AA

Contrast with black, large text4.95:1WCAG large text: AAA

Named colours

Royal blue · ΔE 11.5 Medium slateblue · ΔE 17 Slate blue · ΔE 21 Dodgerblue · ΔE 23.3 Medium purple · ΔE 27.7 Cornflower blue · ΔE 34.2

Nearest named CSS colourRoyal blue (#4169E1)ΔE 11.54, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFA81C

Analogous#1CE4FF, #371CFF

Triadic#FF1C73, #73FF1C

Split complementary#FF371C, #E4FF1C

Tetradic#FF1CE4, #FFA81C, #1CFF37

Tints, shades & saturation

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

Lighter +40%#E8F1FF

Lighter +30%#B5D1FF

Lighter +20%#82B2FF

Lighter +10%#4F92FF

Darker −10%#0059E8

Darker −20%#0045B5

Darker −30%#003282

Darker −40%#001E4F

More saturated +25%#1C73FF

Less saturated −25%#387AE3

Channel breakdown

R28

G115

B255

Red28 (11%)

Green115 (45.1%)

Blue255 (100%)

Hue217°

Saturation (HSL)100%

Lightness55.49%

Dominant channelBlue

Hex per channelR 1C · G 73 · B FF

Keep nerding

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

#1C73FF

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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