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Colour

#042C79

  • #042C79
  • Blue
  • Dark
  • Nearest: Midnight blue

#042C79 is a blue with RGB values 4, 44, 121 and HSL 219°, 94%, 25%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#042C79#042C79
HEX#042C79
RGBrgb(4, 44, 121)
RGB (0–1)0.0157, 0.1725, 0.4745
RGB percentages1.6%, 17.3%, 47.5%
HSLhsl(219.5, 93.6%, 24.5%)
HSV / HSBhsv(219.5, 96.7%, 47.5%)
CMYK96.7%, 63.6%, 0%, 52.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer273,529
CSS custom property--colour: #042C79;

Brightness & contrast

Relative luminance0.03208WCAG 2.x, 0 is black and 1 is white
Perceived brightness53 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 12.79:1
Contrast with white12.79:1WCAG normal text: AAA
Contrast with black1.64:1WCAG normal text: Fail
Greyscale equivalent#292929
Inverted#FBD386

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00387Cno red cones; affects about 1% of men; ΔE 9.5 from the original
Deuteranopia#002D78no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#00404Eno blue cones; rare, and affects men and women equally; ΔE 47.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text12.79:1WCAG large text: AAA
Contrast with black, large text1.64:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 12.3Dark slateblue · ΔE 12.4Rebecca purple · ΔE 25.3Slate blue · ΔE 30.8Indigo · ΔE 31.6Royal blue · ΔE 33
Nearest named CSS colourMidnight blue (#191970)ΔE 12.34, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#795104
Analogous#046779, #160479
Triadic#79042C, #2C7904
Split complementary#791604, #677904
Tetradic#790467, #795104, #047916

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#508AF9
Lighter +30%#1E69F8
Lighter +20%#0750DC
Lighter +10%#063EAA
Darker −10%#021A48
Darker −20%#010816
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002B7D
Less saturated −25%#143169

Channel breakdown

R4
G44
B121
Red4 (1.6%)
Green44 (17.3%)
Blue121 (47.5%)
Hue219.49°
Saturation (HSL)93.6%
Lightness24.51%
Dominant channelBlue
Hex per channelR 04 · G 2C · B 79

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Every value on this page was computed from “042c79” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.