Recognised as Colour

#373AFF

#373AFF
Blue
Dark
Nearest: Medium blue

#373AFF is a blue with RGB values 55, 58, 255 and HSL 239°, 100%, 61%. It is a dark colour, so white text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#373AFF#373AFF

HEX#373AFF

RGBrgb(55, 58, 255)

RGB (0–1)0.2157, 0.2275, 1

RGB percentages21.6%, 22.7%, 100%

HSLhsl(239.1, 100%, 60.8%)

HSV / HSBhsv(239.1, 78.4%, 100%)

CMYK78.4%, 77.3%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer3,619,583

CSS custom property--colour: #373AFF;

Brightness & contrast

Relative luminance0.11058WCAG 2.x, 0 is black and 1 is white

Perceived brightness101.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.54:1

Contrast with white6.54:1WCAG normal text: AA

Contrast with black3.21:1WCAG normal text: Fail

Greyscale equivalent#484848

Inverted#C8C500

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0067FFno red cones; affects about 1% of men; ΔE 32.7 from the original

Deuteranopia#0053FCno green cones; the most common form, about 1% of men; ΔE 18.8 from the original

Tritanopia#00779Cno blue cones; rare, and affects men and women equally; ΔE 102.9 from the original

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

Contrast with white, large text6.54:1WCAG large text: AAA

Contrast with black, large text3.21:1WCAG large text: AA

Named colours

Medium blue · ΔE 15.8 Blue · ΔE 21.7 Blue violet · ΔE 22 Dark violet · ΔE 28.5 Dark orchid · ΔE 35.7 Dark blue · ΔE 38.7

Nearest named CSS colourMedium blue (#0000CD)ΔE 15.83, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFFC37

Analogous#379EFF, #9837FF

Triadic#FF373A, #3AFF37

Split complementary#FF9837, #9EFF37

Tetradic#FF379E, #FFFC37, #37FF98

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D0D1FF

Lighter +20%#9D9EFF

Lighter +10%#6A6CFF

Darker −10%#0408FF

Darker −20%#0003D0

Darker −30%#00029D

Darker −40%#00026A

More saturated +25%#373AFF

Less saturated −25%#5052E6

Channel breakdown

R55

G58

B255

Red55 (21.6%)

Green58 (22.7%)

Blue255 (100%)

Hue239.1°

Saturation (HSL)100%

Lightness60.78%

Dominant channelBlue

Hex per channelR 37 · G 3A · B FF

Keep nerding

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

#373AFF

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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