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Colour

#04040D

  • #04040D
  • Blue
  • Dark
  • Nearest: Black

#04040D is a blue with RGB values 4, 4, 13 and HSL 240°, 53%, 3%. It is a dark colour, so white text on it reaches 20.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#04040D#04040D
HEX#04040D
RGBrgb(4, 4, 13)
RGB (0–1)0.0157, 0.0157, 0.051
RGB percentages1.6%, 1.6%, 5.1%
HSLhsl(240, 52.9%, 3.3%)
HSV / HSBhsv(240, 69.2%, 5.1%)
CMYK69.2%, 69.2%, 0%, 94.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer263,181
CSS custom property--colour: #04040D;

Brightness & contrast

Relative luminance0.00142WCAG 2.x, 0 is black and 1 is white
Perceived brightness5.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.42:1
Contrast with white20.42:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#050505
Inverted#FBFBF2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#02050Dno red cones; affects about 1% of men; ΔE 0.9 from the original
Deuteranopia#02040Dno green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#020507no blue cones; rare, and affects men and women equally; ΔE 3.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.42:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail

Named colours

Black · ΔE 3.9Dark slate grey · ΔE 32.7Dim grey · ΔE 43.3Slate grey · ΔE 52.2Gray · ΔE 52.4Dark slateblue · ΔE 54.5
Nearest named CSS colourBlack (#000000)ΔE 3.95, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D0D04
Analogous#04090D, #09040D
Triadic#0D0404, #040D04
Split complementary#0D0904, #090D04
Tetradic#0D0409, #0D0D04, #040D09

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3434A9
Lighter +30%#282882
Lighter +20%#1C1C5B
Lighter +10%#101034
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#02020F
Less saturated −25%#06060B

Channel breakdown

R4
G4
B13
Red4 (1.6%)
Green4 (1.6%)
Blue13 (5.1%)
Hue240°
Saturation (HSL)52.94%
Lightness3.33%
Dominant channelBlue
Hex per channelR 04 · G 04 · B 0D

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Every value on this page was computed from “04040d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.