Colour

#1966B3

#1966B3
Blue
Dark
Nearest: Cornflower blue

#1966B3 is a blue with RGB values 25, 102, 179 and HSL 210°, 75%, 40%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1966B3#1966B3

HEX#1966B3

RGBrgb(25, 102, 179)

RGB (0–1)0.098, 0.4, 0.702

RGB percentages9.8%, 40%, 70.2%

HSLhsl(210, 75.5%, 40%)

HSV / HSBhsv(210, 86%, 70.2%)

CMYK86%, 43%, 0%, 29.8%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,664,691

CSS custom property--colour: #1966B3;

Brightness & contrast

Relative luminance0.12964WCAG 2.x, 0 is black and 1 is white

Perceived brightness99.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.84:1

Contrast with white5.84:1WCAG normal text: AA

Contrast with black3.59:1WCAG normal text: Fail

Greyscale equivalent#5B5B5B

Inverted#E6994C

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#3F6CB6no red cones; affects about 1% of men; ΔE 5.1 from the original

Deuteranopia#215FB1no green cones; the most common form, about 1% of men; ΔE 5.3 from the original

Tritanopia#007884no blue cones; rare, and affects men and women equally; ΔE 44.3 from the original

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

Contrast with white, large text5.84:1WCAG large text: AAA

Contrast with black, large text3.59:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 19.6 Steel blue · ΔE 20.7 Dark slateblue · ΔE 23.5 Dodgerblue · ΔE 23.5 Royal blue · ΔE 27.3 Slate blue · ΔE 31.6

Nearest named CSS colourCornflower blue (#6495ED)ΔE 19.55, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#B36619

Analogous#19B3B3, #1919B3

Triadic#B31966, #66B319

Split complementary#B31919, #B3B319

Tetradic#B319B3, #B36619, #19B319

Tints, shades & saturation

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

Lighter +40%#A6CCF3

Lighter +30%#79B3EC

Lighter +20%#4C99E6

Lighter +10%#1F80E0

Darker −10%#134D86

Darker −20%#0C335A

Darker −30%#061A2D

Darker −40%#000000

More saturated +25%#0066CC

Less saturated −25%#33669A

Channel breakdown

R25

G102

B179

Red25 (9.8%)

Green102 (40%)

Blue179 (70.2%)

Hue210°

Saturation (HSL)75.49%

Lightness40%

Dominant channelBlue

Hex per channelR 19 · G 66 · B B3

Keep nerding

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#1966B3

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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