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Recognised as Colour

#040407

  • #040407
  • Blue
  • Dark
  • Nearest: Black

#040407 is a blue with RGB values 4, 4, 7 and HSL 240°, 27%, 2%. It is a dark colour, so white text on it reaches 20.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#040407#040407
HEX#040407
RGBrgb(4, 4, 7)
RGB (0–1)0.0157, 0.0157, 0.0275
RGB percentages1.6%, 1.6%, 2.7%
HSLhsl(240, 27.3%, 2.2%)
HSV / HSBhsv(240, 42.9%, 2.7%)
CMYK42.9%, 42.9%, 0%, 97.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer263,175
CSS custom property--colour: #040407;

Brightness & contrast

Relative luminance0.00128WCAG 2.x, 0 is black and 1 is white
Perceived brightness4.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.48:1
Contrast with white20.48:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#040404
Inverted#FBFBF8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#030407no red cones; affects about 1% of men; ΔE 0.3 from the original
Deuteranopia#030407no green cones; the most common form, about 1% of men; ΔE 0.3 from the original
Tritanopia#030405no blue cones; rare, and affects men and women equally; ΔE 0.9 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.48:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail

Named colours

Black · ΔE 1.7Dark slate grey · ΔE 32.6Dim grey · ΔE 43.3Gray · ΔE 52.4Slate grey · ΔE 52.6Dark olivegreen · ΔE 55.4
Nearest named CSS colourBlack (#000000)ΔE 1.67, below the just-noticeable difference
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#070704
Analogous#040607, #060407
Triadic#070404, #040704
Split complementary#070604, #060704
Tetradic#070406, #070704, #040706

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4E4E89
Lighter +30%#3C3C68
Lighter +20%#292948
Lighter +10%#171727
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#030308
Less saturated −25%#050506

Channel breakdown

R4
G4
B7
Red4 (1.6%)
Green4 (1.6%)
Blue7 (2.7%)
Hue240°
Saturation (HSL)27.27%
Lightness2.16%
Dominant channelBlue
Hex per channelR 04 · G 04 · B 07

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Every value on this page was computed from “hex 040407” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.