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Recognised as Colour

#040312

  • #040312
  • Blue
  • Dark
  • Nearest: Black

#040312 is a blue with RGB values 4, 3, 18 and HSL 244°, 71%, 4%. 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

#040312#040312
HEX#040312
RGBrgb(4, 3, 18)
RGB (0–1)0.0157, 0.0118, 0.0706
RGB percentages1.6%, 1.2%, 7.1%
HSLhsl(244, 71.4%, 4.1%)
HSV / HSBhsv(244, 83.3%, 7.1%)
CMYK77.8%, 83.3%, 0%, 92.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer262,930
CSS custom property--colour: #040312;

Brightness & contrast

Relative luminance0.00135WCAG 2.x, 0 is black and 1 is white
Perceived brightness6.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.45:1
Contrast with white20.45:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#040404
Inverted#FBFCED

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#000513no red cones; affects about 1% of men; ΔE 1.7 from the original
Deuteranopia#000412no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#010508no blue cones; rare, and affects men and women equally; ΔE 5.8 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.45:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail

Named colours

Black · ΔE 6.9Dark slate grey · ΔE 33.4Dim grey · ΔE 43.7Slate grey · ΔE 52Dark slateblue · ΔE 52Gray · ΔE 52.8
Nearest named CSS colourBlack (#000000)ΔE 6.94, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#111203
Analogous#030912, #0B0312
Triadic#120403, #031204
Split complementary#120B03, #0A1203
Tetradic#12030A, #111203, #03120C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2B20C1
Lighter +30%#211995
Lighter +20%#171269
Lighter +10%#0E0A3E
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#020015
Less saturated −25%#06060F

Channel breakdown

R4
G3
B18
Red4 (1.6%)
Green3 (1.2%)
Blue18 (7.1%)
Hue244°
Saturation (HSL)71.43%
Lightness4.12%
Dominant channelBlue
Hex per channelR 04 · G 03 · B 12

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Every value on this page was computed from “hex 040312” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.