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Recognised as Colour

#1870CA

  • #1870CA
  • Blue
  • Dark
  • Nearest: Cornflower blue

#1870CA is a blue with RGB values 24, 112, 202 and HSL 210°, 79%, 44%. It is a dark colour, so white text on it reaches 5:1 contrast (AA for normal text). The nearest named colour is Cornflower blue.

Colour values

#1870CA#1870CA
HEX#1870CA
RGBrgb(24, 112, 202)
RGB (0–1)0.0941, 0.4392, 0.7922
RGB percentages9.4%, 43.9%, 79.2%
HSLhsl(210.3, 78.8%, 44.3%)
HSV / HSBhsv(210.3, 88.1%, 79.2%)
CMYK88.1%, 44.6%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,601,738
CSS custom property--colour: #1870CA;

Brightness & contrast

Relative luminance0.16047WCAG 2.x, 0 is black and 1 is white
Perceived brightness110.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 4.99:1
Contrast with white4.99:1WCAG normal text: AA
Contrast with black4.21:1WCAG normal text: Fail
Greyscale equivalent#646464
Inverted#E78F35

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#4078CDno red cones; affects about 1% of men; ΔE 5.4 from the original
Deuteranopia#1668C8no green cones; the most common form, about 1% of men; ΔE 5.6 from the original
Tritanopia#008693no blue cones; rare, and affects men and women equally; ΔE 51.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text4.99:1WCAG large text: AAA
Contrast with black, large text4.21:1WCAG large text: AA

Named colours

Cornflower blue · ΔE 15.5Dodgerblue · ΔE 15.8Royal blue · ΔE 20.8Steel blue · ΔE 25.6Dark slateblue · ΔE 26.1Slate blue · ΔE 27.4
Nearest named CSS colourCornflower blue (#6495ED)ΔE 15.48, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CA7218
Analogous#18C9CA, #1918CA
Triadic#CA1870, #70CA18
Split complementary#CA1918, #C9CA18
Tetradic#CA18C9, #CA7218, #18CA19

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B7D7F7
Lighter +30%#8ABDF1
Lighter +20%#5CA3EC
Lighter +10%#2F89E6
Darker −10%#13579C
Darker −20%#0D3D6F
Darker −30%#082441
Darker −40%#020B14
More saturated +25%#0070E2
Less saturated −25%#3470AE

Channel breakdown

R24
G112
B202
Red24 (9.4%)
Green112 (43.9%)
Blue202 (79.2%)
Hue210.34°
Saturation (HSL)78.76%
Lightness44.31%
Dominant channelBlue
Hex per channelR 18 · G 70 · B CA

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Every value on this page was computed from “1870ca” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.