Recognised as Colour

#1717F3

#1717F3
Blue
Dark
Nearest: Blue

#1717F3 is a blue with RGB values 23, 23, 243 and HSL 240°, 90%, 52%. It is a dark colour, so white text on it reaches 8.6:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#1717F3#1717F3

HEX#1717F3

RGBrgb(23, 23, 243)

RGB (0–1)0.0902, 0.0902, 0.9529

RGB percentages9%, 9%, 95.3%

HSLhsl(240, 90.2%, 52.2%)

HSV / HSBhsv(240, 90.5%, 95.3%)

CMYK90.5%, 90.5%, 0%, 4.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,513,459

CSS custom property--colour: #1717F3;

Brightness & contrast

Relative luminance0.07266WCAG 2.x, 0 is black and 1 is white

Perceived brightness84.9 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.56:1

Contrast with white8.56:1WCAG normal text: AAA

Contrast with black2.45:1WCAG normal text: Fail

Greyscale equivalent#272727

Inverted#E8E80C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0058F8no red cones; affects about 1% of men; ΔE 36.6 from the original

Deuteranopia#0040F0no green cones; the most common form, about 1% of men; ΔE 22.5 from the original

Tritanopia#006890no blue cones; rare, and affects men and women equally; ΔE 109.6 from the original

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

Contrast with white, large text8.56:1WCAG large text: AAA

Contrast with black, large text2.45:1WCAG large text: Fail

Named colours

Blue · ΔE 9.9 Medium blue · ΔE 13 Blue violet · ΔE 28 Dark violet · ΔE 31.7 Dark blue · ΔE 42.7 Dark orchid · ΔE 42.8

Nearest named CSS colourBlue (#0000FF)ΔE 9.88, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#F3F317

Analogous#1785F3, #8517F3

Triadic#F31717, #17F317

Split complementary#F38517, #85F317

Tetradic#F31785, #F3F317, #17F385

Tints, shades & saturation

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

Lighter +40%#D9D9FD

Lighter +30%#A8A8FB

Lighter +20%#7878F8

Lighter +10%#4747F6

Darker −10%#0B0BCC

Darker −20%#08089C

Darker −30%#06066B

Darker −40%#03033B

More saturated +25%#0B0BFF

Less saturated −25%#3535D4

Channel breakdown

R23

G23

B243

Red23 (9%)

Green23 (9%)

Blue243 (95.3%)

Hue240°

Saturation (HSL)90.16%

Lightness52.16%

Dominant channelBlue

Hex per channelR 17 · G 17 · B F3

Keep nerding

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

#1717F3

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

Nerdulate something else