Colour

#284EA6

#284EA6
Blue
Dark
Nearest: Dark slateblue

#284EA6 is a blue with RGB values 40, 78, 166 and HSL 222°, 61%, 40%. It is a dark colour, so white text on it reaches 7.7:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#284EA6#284EA6

HEX#284EA6

RGBrgb(40, 78, 166)

RGB (0–1)0.1569, 0.3059, 0.651

RGB percentages15.7%, 30.6%, 65.1%

HSLhsl(221.9, 61.2%, 40.4%)

HSV / HSBhsv(221.9, 75.9%, 65.1%)

CMYK75.9%, 53%, 0%, 34.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,641,574

CSS custom property--colour: #284EA6;

Brightness & contrast

Relative luminance0.08653WCAG 2.x, 0 is black and 1 is white

Perceived brightness84.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.69:1

Contrast with white7.69:1WCAG normal text: AAA

Contrast with black2.73:1WCAG normal text: Fail

Greyscale equivalent#4C4C4C

Inverted#D7B159

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1059A9no red cones; affects about 1% of men; ΔE 9.2 from the original

Deuteranopia#004EA4no green cones; the most common form, about 1% of men; ΔE 4 from the original

Tritanopia#006372no blue cones; rare, and affects men and women equally; ΔE 51.9 from the original

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

Contrast with white, large text7.69:1WCAG large text: AAA

Contrast with black, large text2.73:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.7 Royal blue · ΔE 20.2 Slate blue · ΔE 21.1 Midnight blue · ΔE 23.5 Rebecca purple · ΔE 24.7 Medium purple · ΔE 26.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.69, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#A68028

Analogous#288DA6, #4128A6

Triadic#A6284E, #4EA628

Split complementary#A64128, #8DA628

Tetradic#A6288D, #A68028, #28A641

Tints, shades & saturation

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

Lighter +40%#AEC1EC

Lighter +30%#85A1E2

Lighter +20%#5C81D8

Lighter +10%#3362CE

Darker −10%#1E3B7D

Darker −20%#142754

Darker −30%#0A142B

Darker −40%#000102

More saturated +25%#0E44C0

Less saturated −25%#42588C

Channel breakdown

R40

G78

B166

Red40 (15.7%)

Green78 (30.6%)

Blue166 (65.1%)

Hue221.9°

Saturation (HSL)61.17%

Lightness40.39%

Dominant channelBlue

Hex per channelR 28 · G 4E · B A6

Keep nerding

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

#284EA6

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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