Colour

#1800DD

#1800DD
Blue
Dark
Nearest: Medium blue

#1800DD is a blue with RGB values 24, 0, 221 and HSL 247°, 100%, 43%. It is a dark colour, so white text on it reaches 10.1:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1800DD#1800DD

HEX#1800DD

RGBrgb(24, 0, 221)

RGB (0–1)0.0941, 0, 0.8667

RGB percentages9.4%, 0%, 86.7%

HSLhsl(246.5, 100%, 43.3%)

HSV / HSBhsv(246.5, 100%, 86.7%)

CMYK89.1%, 100%, 0%, 13.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,573,085

CSS custom property--colour: #1800DD;

Brightness & contrast

Relative luminance0.05415WCAG 2.x, 0 is black and 1 is white

Perceived brightness75.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 10.08:1

Contrast with white10.08:1WCAG normal text: AAA

Contrast with black2.08:1WCAG normal text: Fail

Greyscale equivalent#151515

Inverted#E7FF22

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#004CE2no red cones; affects about 1% of men; ΔE 36 from the original

Deuteranopia#0036DAno green cones; the most common form, about 1% of men; ΔE 23.5 from the original

Tritanopia#005C81no blue cones; rare, and affects men and women equally; ΔE 105.9 from the original

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

Contrast with white, large text10.08:1WCAG large text: AAA

Contrast with black, large text2.08:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.7 Blue · ΔE 15 Blue violet · ΔE 25.6 Dark violet · ΔE 28.5 Dark blue · ΔE 36.7 Dark orchid · ΔE 39.5

Nearest named CSS colourMedium blue (#0000CD)ΔE 6.67, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#C5DD00

Analogous#0057DD, #8600DD

Triadic#DD1800, #00DD18

Split complementary#DD8600, #57DD00

Tetradic#DD0057, #C5DD00, #00DD86

Tints, shades & saturation

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

Lighter +40%#B3AAFF

Lighter +30%#8677FF

Lighter +20%#5844FF

Lighter +10%#2B11FF

Darker −10%#1200AA

Darker −20%#0D0077

Darker −30%#070044

Darker −40%#020011

More saturated +25%#1800DD

Less saturated −25%#2E1CC1

Channel breakdown

R24

B221

Red24 (9.4%)

Green0 (0%)

Blue221 (86.7%)

Hue246.52°

Saturation (HSL)100%

Lightness43.33%

Dominant channelBlue

Hex per channelR 18 · G 00 · B DD

Keep nerding

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

#1800DD

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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