Colour

#4280D4

#4280D4
Blue
Dark
Nearest: Cornflower blue

#4280D4 is a blue with RGB values 66, 128, 212 and HSL 215°, 63%, 55%. It is a dark colour, so black text on it reaches 5.3:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#4280D4#4280D4

HEX#4280D4

RGBrgb(66, 128, 212)

RGB (0–1)0.2588, 0.502, 0.8314

RGB percentages25.9%, 50.2%, 83.1%

HSLhsl(214.5, 62.9%, 54.5%)

HSV / HSBhsv(214.5, 68.9%, 83.1%)

CMYK68.9%, 39.6%, 0%, 16.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer4,358,356

CSS custom property--colour: #4280D4;

Brightness & contrast

Relative luminance0.2135WCAG 2.x, 0 is black and 1 is white

Perceived brightness126.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 5.27:1

Contrast with white3.98:1WCAG normal text: Fail

Contrast with black5.27:1WCAG normal text: AA

Greyscale equivalent#797979

Inverted#BD7F2B

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5987D7no red cones; affects about 1% of men; ΔE 4.6 from the original

Deuteranopia#4379D2no green cones; the most common form, about 1% of men; ΔE 4.7 from the original

Tritanopia#0093A0no blue cones; rare, and affects men and women equally; ΔE 48.2 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text3.98:1WCAG large text: AA

Contrast with black, large text5.27:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 8.8 Dodgerblue · ΔE 15.7 Steel blue · ΔE 20.5 Royal blue · ΔE 25.4 Medium purple · ΔE 29.4 Dark slateblue · ΔE 30

Nearest named CSS colourCornflower blue (#6495ED)ΔE 8.81, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#D49642

Analogous#42C9D4, #4D42D4

Triadic#D44280, #80D442

Split complementary#D44D42, #C9D442

Tetradic#D442C9, #D49642, #42D44D

Tints, shades & saturation

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

Lighter +40%#E8F0FA

Lighter +30%#BFD4F0

Lighter +20%#95B8E7

Lighter +10%#6C9CDD

Darker −10%#2A67B9

Darker −20%#21508F

Darker −30%#173966

Darker −40%#0E213C

More saturated +25%#257CF1

Less saturated −25%#5F84B7

Channel breakdown

R66

G128

B212

Red66 (25.9%)

Green128 (50.2%)

Blue212 (83.1%)

Hue214.52°

Saturation (HSL)62.93%

Lightness54.51%

Dominant channelBlue

Hex per channelR 42 · G 80 · B D4

Keep nerding

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

#4280D4

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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