Recognised as Colour

#1B63DA

#1B63DA
Blue
Dark
Nearest: Royal blue

#1B63DA is a blue with RGB values 27, 99, 218 and HSL 217°, 78%, 48%. It is a dark colour, so white text on it reaches 5.5:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1B63DA#1B63DA

HEX#1B63DA

RGBrgb(27, 99, 218)

RGB (0–1)0.1059, 0.3882, 0.8549

RGB percentages10.6%, 38.8%, 85.5%

HSLhsl(217.4, 78%, 48%)

HSV / HSBhsv(217.4, 87.6%, 85.5%)

CMYK87.6%, 54.6%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,795,034

CSS custom property--colour: #1B63DA;

Brightness & contrast

Relative luminance0.14219WCAG 2.x, 0 is black and 1 is white

Perceived brightness106.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 5.46:1

Contrast with white5.46:1WCAG normal text: AA

Contrast with black3.84:1WCAG normal text: Fail

Greyscale equivalent#5C5C5C

Inverted#E49C25

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0072DEno red cones; affects about 1% of men; ΔE 10.9 from the original

Deuteranopia#0061D8no green cones; the most common form, about 1% of men; ΔE 1.3 from the original

Tritanopia#008195no blue cones; rare, and affects men and women equally; ΔE 66.3 from the original

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

Contrast with white, large text5.46:1WCAG large text: AAA

Contrast with black, large text3.84:1WCAG large text: AA

Named colours

Royal blue · ΔE 4.3 Slate blue · ΔE 15.1 Medium slateblue · ΔE 18.9 Dodgerblue · ΔE 20.6 Medium purple · ΔE 23.5 Dark slateblue · ΔE 28.3

Nearest named CSS colourRoyal blue (#4169E1)ΔE 4.32, a close match

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DA921B

Analogous#1BC3DA, #321BDA

Triadic#DA1B63, #63DA1B

Split complementary#DA321B, #C3DA1B

Tetradic#DA1BC3, #DA921B, #1BDA32

Tints, shades & saturation

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

Lighter +40%#C9DBF8

Lighter +30%#9BBCF3

Lighter +20%#6E9EED

Lighter +10%#417FE7

Darker −10%#154EAD

Darker −20%#103A7F

Darker −30%#0A2552

Darker −40%#051124

More saturated +25%#005CF5

Less saturated −25%#3A6BBB

Channel breakdown

R27

G99

B218

Red27 (10.6%)

Green99 (38.8%)

Blue218 (85.5%)

Hue217.38°

Saturation (HSL)77.96%

Lightness48.04%

Dominant channelBlue

Hex per channelR 1B · G 63 · B DA

Keep nerding

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

#1B63DA

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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