Colour

#2548DB

#2548DB
Blue
Dark
Nearest: Medium slateblue

#2548DB is a blue with RGB values 37, 72, 219 and HSL 228°, 72%, 50%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#2548DB#2548DB

HEX#2548DB

RGBrgb(37, 72, 219)

RGB (0–1)0.1451, 0.2824, 0.8588

RGB percentages14.5%, 28.2%, 85.9%

HSLhsl(228.5, 71.7%, 50.2%)

HSV / HSBhsv(228.5, 83.1%, 85.9%)

CMYK83.1%, 67.1%, 0%, 14.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,443,483

CSS custom property--colour: #2548DB;

Brightness & contrast

Relative luminance0.10143WCAG 2.x, 0 is black and 1 is white

Perceived brightness94.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 6.93:1

Contrast with white6.93:1WCAG normal text: AA

Contrast with black3.03:1WCAG normal text: Fail

Greyscale equivalent#4B4B4B

Inverted#DAB724

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0062E0no red cones; affects about 1% of men; ΔE 19 from the original

Deuteranopia#0051D8no green cones; the most common form, about 1% of men; ΔE 9.2 from the original

Tritanopia#00708Bno blue cones; rare, and affects men and women equally; ΔE 81 from the original

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

Contrast with white, large text6.93:1WCAG large text: AAA

Contrast with black, large text3.03:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 18.8 Slate blue · ΔE 22.1 Royal blue · ΔE 22.4 Dark blue · ΔE 26.4 Blue violet · ΔE 28.2 Navy · ΔE 28.8

Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 18.78, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DBB825

Analogous#25A3DB, #5D25DB

Triadic#DB2548, #48DB25

Split complementary#DB5D25, #A3DB25

Tetradic#DB25A3, #DBB825, #25DB5D

Tints, shades & saturation

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

Lighter +40%#D4DBF8

Lighter +30%#A8B6F1

Lighter +20%#7D91E9

Lighter +10%#516DE2

Darker −10%#1D39B0

Darker −20%#162B84

Darker −30%#0F1D58

Darker −40%#070F2D

More saturated +25%#0534FB

Less saturated −25%#455CBB

Channel breakdown

R37

G72

B219

Red37 (14.5%)

Green72 (28.2%)

Blue219 (85.9%)

Hue228.46°

Saturation (HSL)71.65%

Lightness50.2%

Dominant channelBlue

Hex per channelR 25 · G 48 · B DB

Keep nerding

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#2548DB

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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