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Recognised as Colour

#1819CC

  • #1819CC
  • Blue
  • Dark
  • Nearest: Medium blue

#1819CC is a blue with RGB values 24, 25, 204 and HSL 240°, 79%, 45%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1819CC#1819CC
HEX#1819CC
RGBrgb(24, 25, 204)
RGB (0–1)0.0941, 0.098, 0.8
RGB percentages9.4%, 9.8%, 80%
HSLhsl(239.7, 78.9%, 44.7%)
HSV / HSBhsv(239.7, 88.2%, 80%)
CMYK88.2%, 87.7%, 0%, 20%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,579,468
CSS custom property--colour: #1819CC;

Brightness & contrast

Relative luminance0.05249WCAG 2.x, 0 is black and 1 is white
Perceived brightness72.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.24:1
Contrast with white10.24:1WCAG normal text: AAA
Contrast with black2.05:1WCAG normal text: Fail
Greyscale equivalent#262626
Inverted#E7E633

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004AD1no red cones; affects about 1% of men; ΔE 29.9 from the original
Deuteranopia#0037C9no green cones; the most common form, about 1% of men; ΔE 19 from the original
Tritanopia#005879no blue cones; rare, and affects men and women equally; ΔE 94.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.24:1WCAG large text: AAA
Contrast with black, large text2.05:1WCAG large text: Fail

Named colours

Medium blue · ΔE 8.2Blue violet · ΔE 21Dark blue · ΔE 24.5Dark violet · ΔE 25.6Blue · ΔE 28.3Navy · ΔE 29.6
Nearest named CSS colourMedium blue (#0000CD)ΔE 8.17, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CCCB18
Analogous#1873CC, #7118CC
Triadic#CC1819, #19CC18
Split complementary#CC7118, #73CC18
Tetradic#CC1873, #CCCB18, #18CC71

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B9BAF7
Lighter +30%#8C8CF1
Lighter +20%#5E5FEC
Lighter +10%#3031E7
Darker −10%#13139E
Darker −20%#0D0E71
Darker −30%#080843
Darker −40%#030315
More saturated +25%#0001E4
Less saturated −25%#3535B0

Channel breakdown

R24
G25
B204
Red24 (9.4%)
Green25 (9.8%)
Blue204 (80%)
Hue239.67°
Saturation (HSL)78.95%
Lightness44.71%
Dominant channelBlue
Hex per channelR 18 · G 19 · B CC

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Every value on this page was computed from “1819cc” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.