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Colour

#0031CD

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

#0031CD is a blue with RGB values 0, 49, 205 and HSL 226°, 100%, 40%. It is a dark colour, so white text on it reaches 9:1 contrast (AAA for normal text). The nearest named colour is Dark blue.

Colour values

#0031CD#0031CD
HEX#0031CD
RGBrgb(0, 49, 205)
RGB (0–1)0, 0.1922, 0.8039
RGB percentages0%, 19.2%, 80.4%
HSLhsl(225.7, 100%, 40.2%)
HSV / HSBhsv(225.7, 100%, 80.4%)
CMYK100%, 76.1%, 0%, 19.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer12,749
CSS custom property--colour: #0031CD;

Brightness & contrast

Relative luminance0.06604WCAG 2.x, 0 is black and 1 is white
Perceived brightness78.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.05:1
Contrast with white9.05:1WCAG normal text: AAA
Contrast with black2.32:1WCAG normal text: Fail
Greyscale equivalent#323232
Inverted#FFCE32

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0052D1no red cones; affects about 1% of men; ΔE 23.5 from the original
Deuteranopia#003FCAno green cones; the most common form, about 1% of men; ΔE 11.7 from the original
Tritanopia#00617Dno blue cones; rare, and affects men and women equally; ΔE 86.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.05:1WCAG large text: AAA
Contrast with black, large text2.32:1WCAG large text: Fail

Named colours

Dark blue · ΔE 20.7Medium blue · ΔE 21.1Blue violet · ΔE 24.2Navy · ΔE 24.7Medium slateblue · ΔE 28.1Dark orchid · ΔE 29.4
Nearest named CSS colourDark blue (#00008B)ΔE 20.71, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#CD9C00
Analogous#0098CD, #3500CD
Triadic#CD0031, #31CD00
Split complementary#CD3500, #98CD00
Tetradic#CD0098, #CD9C00, #00CD35

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#9AB2FF
Lighter +30%#678BFF
Lighter +20%#3465FF
Lighter +10%#013EFF
Darker −10%#00259A
Darker −20%#001967
Darker −30%#000C34
Darker −40%#000001
More saturated +25%#0031CD
Less saturated −25%#1A3EB3

Channel breakdown

R0
G49
B205
Red0 (0%)
Green49 (19.2%)
Blue205 (80.4%)
Hue225.66°
Saturation (HSL)100%
Lightness40.2%
Dominant channelBlue
Hex per channelR 00 · G 31 · B CD

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