Recognised as Colour

#170DFF

#170DFF
Blue
Dark
Nearest: Blue

#170DFF is a blue with RGB values 23, 13, 255 and HSL 242°, 100%, 53%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#170DFF#170DFF

HEX#170DFF

RGBrgb(23, 13, 255)

RGB (0–1)0.0902, 0.051, 1

RGB percentages9%, 5.1%, 100%

HSLhsl(242.5, 100%, 52.5%)

HSV / HSBhsv(242.5, 94.9%, 100%)

CMYK91%, 94.9%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,510,911

CSS custom property--colour: #170DFF;

Brightness & contrast

Relative luminance0.0769WCAG 2.x, 0 is black and 1 is white

Perceived brightness87.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 8.27:1

Contrast with white8.27:1WCAG normal text: AAA

Contrast with black2.54:1WCAG normal text: Fail

Greyscale equivalent#212121

Inverted#E8F200

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#005AFFno red cones; affects about 1% of men; ΔE 41.4 from the original

Deuteranopia#0041FBno green cones; the most common form, about 1% of men; ΔE 25 from the original

Tritanopia#006C96no blue cones; rare, and affects men and women equally; ΔE 116.3 from the original

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

Contrast with white, large text8.27:1WCAG large text: AAA

Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Blue · ΔE 2.7 Medium blue · ΔE 19.7 Blue violet · ΔE 33.5 Dark violet · ΔE 36.3 Dark orchid · ΔE 48.7 Dark blue · ΔE 49.7

Nearest named CSS colourBlue (#0000FF)ΔE 2.7, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#F5FF0D

Analogous#0D7CFF, #900DFF

Triadic#FF170D, #0DFF17

Split complementary#FF900D, #7CFF0D

Tetradic#FF0D7C, #F5FF0D, #0DFF90

Tints, shades & saturation

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

Lighter +40%#DBD9FF

Lighter +30%#AAA6FF

Lighter +20%#7973FF

Lighter +10%#4840FF

Darker −10%#0900D9

Darker −20%#0700A6

Darker −30%#050073

Darker −40%#030040

More saturated +25%#170DFF

Less saturated −25%#332BE1

Channel breakdown

R23

G13

B255

Red23 (9%)

Green13 (5.1%)

Blue255 (100%)

Hue242.48°

Saturation (HSL)100%

Lightness52.55%

Dominant channelBlue

Hex per channelR 17 · G 0D · B FF

Keep nerding

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

#170DFF

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