Recognised as Colour

#428EF9

#428EF9
Blue
Dark
Nearest: Dodgerblue

#428EF9 is a blue with RGB values 66, 142, 249 and HSL 215°, 94%, 62%. It is a dark colour, so black text on it reaches 6.5:1 contrast (AA for normal text). The nearest named colour is Dodgerblue.

Colour values

#428EF9#428EF9

HEX#428EF9

RGBrgb(66, 142, 249)

RGB (0–1)0.2588, 0.5569, 0.9765

RGB percentages25.9%, 55.7%, 97.6%

HSLhsl(215.1, 93.8%, 61.8%)

HSV / HSBhsv(215.1, 73.5%, 97.6%)

CMYK73.5%, 43%, 0%, 2.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,361,977

CSS custom property--colour: #428EF9;

Brightness & contrast

Relative luminance0.27344WCAG 2.x, 0 is black and 1 is white

Perceived brightness142.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 6.47:1

Contrast with white3.25:1WCAG normal text: Fail

Contrast with black6.47:1WCAG normal text: AA

Greyscale equivalent#868686

Inverted#BD7106

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5998FDno red cones; affects about 1% of men; ΔE 5.6 from the original

Deuteranopia#3687F7no green cones; the most common form, about 1% of men; ΔE 4.2 from the original

Tritanopia#00A7B7no blue cones; rare, and affects men and women equally; ΔE 59.3 from the original

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

Contrast with white, large text3.25:1WCAG large text: AA

Contrast with black, large text6.47:1WCAG large text: AAA

Named colours

Dodgerblue · ΔE 3.9 Cornflower blue · ΔE 11.6 Royal blue · ΔE 18.9 Medium purple · ΔE 27 Slate blue · ΔE 27.8 Medium slateblue · ΔE 30.2

Nearest named CSS colourDodgerblue (#1E90FF)ΔE 3.87, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#F9AD42

Analogous#42EAF9, #5142F9

Triadic#F9428E, #8EF942

Split complementary#F95242, #EAF942

Tetradic#F942EA, #F9AD42, #42F952

Tints, shades & saturation

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

Lighter +40%#FFFFFF

Lighter +30%#D6E7FE

Lighter +20%#A5C9FC

Lighter +10%#73ACFB

Darker −10%#1170F7

Darker −20%#075ACE

Darker −30%#05449D

Darker −40%#032F6C

More saturated +25%#3C8DFF

Less saturated −25%#5A92E1

Channel breakdown

R66

G142

B249

Red66 (25.9%)

Green142 (55.7%)

Blue249 (97.6%)

Hue215.08°

Saturation (HSL)93.85%

Lightness61.76%

Dominant channelBlue

Hex per channelR 42 · G 8E · B F9

Keep nerding

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

#428EF9

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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