Colour

#217ECD

#217ECD
Blue
Dark
Nearest: Cornflower blue

#217ECD is a blue with RGB values 33, 126, 205 and HSL 208°, 72%, 47%. It is a dark colour, so black text on it reaches 4.9:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#217ECD#217ECD

HEX#217ECD

RGBrgb(33, 126, 205)

RGB (0–1)0.1294, 0.4941, 0.8039

RGB percentages12.9%, 49.4%, 80.4%

HSLhsl(207.6, 72.3%, 46.7%)

HSV / HSBhsv(207.6, 83.9%, 80.4%)

CMYK83.9%, 38.5%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,195,149

CSS custom property--colour: #217ECD;

Brightness & contrast

Relative luminance0.19653WCAG 2.x, 0 is black and 1 is white

Perceived brightness120.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundBlackcontrast 4.93:1

Contrast with white4.26:1WCAG normal text: Fail

Contrast with black4.93:1WCAG normal text: AA

Greyscale equivalent#707070

Inverted#DE8132

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#5883D0no red cones; affects about 1% of men; ΔE 8 from the original

Deuteranopia#3D74CBno green cones; the most common form, about 1% of men; ΔE 9.2 from the original

Tritanopia#00919Bno blue cones; rare, and affects men and women equally; ΔE 45.5 from the original

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

Contrast with white, large text4.26:1WCAG large text: AA

Contrast with black, large text4.93:1WCAG large text: AAA

Named colours

Cornflower blue · ΔE 12.7 Steel blue · ΔE 17.2 Dodgerblue · ΔE 18.8 Deep skyblue · ΔE 29.5 Royal blue · ΔE 29.7 Dark slateblue · ΔE 32.1

Nearest named CSS colourCornflower blue (#6495ED)ΔE 12.74, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#CD7021

Analogous#21CDC6, #2128CD

Triadic#CD217E, #7ECD21

Split complementary#CD2128, #CDC621

Tetradic#C621CD, #CD7021, #28CD21

Tints, shades & saturation

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

Lighter +40%#C4DFF6

Lighter +30%#98C7EF

Lighter +20%#6DAFE7

Lighter +10%#4197E0

Darker −10%#1A63A1

Darker −20%#134875

Darker −30%#0C2D49

Darker −40%#05121D

More saturated +25%#0380EB

Less saturated −25%#3F7CAF

Channel breakdown

R33

G126

B205

Red33 (12.9%)

Green126 (49.4%)

Blue205 (80.4%)

Hue207.56°

Saturation (HSL)72.27%

Lightness46.67%

Dominant channelBlue

Hex per channelR 21 · G 7E · B CD

Keep nerding

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#217ECD

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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