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Colour

#0440C4

  • #0440C4
  • Blue
  • Dark
  • Nearest: Slate blue

#0440C4 is a blue with RGB values 4, 64, 196 and HSL 221°, 96%, 39%. It is a dark colour, so white text on it reaches 8.3:1 contrast (AAA for normal text). The nearest named colour is Slate blue.

Colour values

#0440C4#0440C4
HEX#0440C4
RGBrgb(4, 64, 196)
RGB (0–1)0.0157, 0.251, 0.7686
RGB percentages1.6%, 25.1%, 76.9%
HSLhsl(221.3, 96%, 39.2%)
HSV / HSBhsv(221.3, 98%, 76.9%)
CMYK98%, 67.3%, 0%, 23.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer278,724
CSS custom property--colour: #0440C4;

Brightness & contrast

Relative luminance0.07678WCAG 2.x, 0 is black and 1 is white
Perceived brightness82.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.28:1
Contrast with white8.28:1WCAG normal text: AAA
Contrast with black2.54:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#FBBF3B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0057C8no red cones; affects about 1% of men; ΔE 17 from the original
Deuteranopia#0046C2no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#00657Cno blue cones; rare, and affects men and women equally; ΔE 75.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.28:1WCAG large text: AAA
Contrast with black, large text2.54:1WCAG large text: Fail

Named colours

Slate blue · ΔE 19Royal blue · ΔE 19.6Medium slateblue · ΔE 20.5Dark blue · ΔE 23.1Navy · ΔE 24Rebecca purple · ΔE 25.9
Nearest named CSS colourSlate blue (#6A5ACD)ΔE 18.98, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C48804
Analogous#04A0C4, #2804C4
Triadic#C40440, #40C404
Split complementary#C42804, #A0C404
Tetradic#C404A0, #C48804, #04C428

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#97B7FD
Lighter +30%#6594FC
Lighter +20%#3372FB
Lighter +10%#0550F6
Darker −10%#033092
Darker −20%#021F60
Darker −30%#010F2E
Darker −40%#000000
More saturated +25%#003FC8
Less saturated −25%#1D49AB

Channel breakdown

R4
G64
B196
Red4 (1.6%)
Green64 (25.1%)
Blue196 (76.9%)
Hue221.25°
Saturation (HSL)96%
Lightness39.22%
Dominant channelBlue
Hex per channelR 04 · G 40 · B C4

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Every value on this page was computed from “0440c4” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.