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Recognised as Colour

#0031CA

  • #0031CA
  • Blue
  • Dark
  • Nearest: Dark blue

#0031CA is a blue with RGB values 0, 49, 202 and HSL 225°, 100%, 40%. It is a dark colour, so white text on it reaches 9.2:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0031CA#0031CA
HEX#0031CA
RGBrgb(0, 49, 202)
RGB (0–1)0, 0.1922, 0.7922
RGB percentages0%, 19.2%, 79.2%
HSLhsl(225.4, 100%, 39.6%)
HSV / HSBhsv(225.4, 100%, 79.2%)
CMYK100%, 75.7%, 0%, 20.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,746
CSS custom property--colour: #0031CA;

Brightness & contrast

Relative luminance0.06461WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.16:1
Contrast with white9.16:1WCAG normal text: AAA
Contrast with black2.29:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFCE35

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0051CEno red cones; affects about 1% of men; ΔE 22.9 from the original
Deuteranopia#003EC7no green cones; the most common form, about 1% of men; ΔE 11 from the original
Tritanopia#00607Cno blue cones; rare, and affects men and women equally; ΔE 85 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.16:1WCAG large text: AAA
Contrast with black, large text2.29:1WCAG large text: Fail

Named colours

Dark blue · ΔE 19.8Medium blue · ΔE 22.4Navy · ΔE 23.6Blue violet · ΔE 25Medium slateblue · ΔE 27.4Indigo · ΔE 29.1
Nearest named CSS colourDark blue (#00008B)ΔE 19.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CA9900
Analogous#0096CA, #3400CA
Triadic#CA0031, #31CA00
Split complementary#CA3400, #96CA00
Tetradic#CA0096, #CA9900, #00CA34

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97B0FF
Lighter +30%#648AFF
Lighter +20%#3163FF
Lighter +10%#003DFD
Darker −10%#002597
Darker −20%#001864
Darker −30%#000C31
Darker −40%#000000
More saturated +25%#0031CA
Less saturated −25%#193EB1

Channel breakdown

R0
G49
B202
Red0 (0%)
Green49 (19.2%)
Blue202 (79.2%)
Hue225.45°
Saturation (HSL)100%
Lightness39.61%
Dominant channelBlue
Hex per channelR 00 · G 31 · B CA

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Every value on this page was computed from “0031ca” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.