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Recognised as Colour

#040D0D

  • #040D0D
  • Cyan
  • Dark
  • Nearest: Black

#040D0D is a cyan with RGB values 4, 13, 13 and HSL 180°, 53%, 3%. It is a dark colour, so white text on it reaches 19.7:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#040D0D#040D0D
HEX#040D0D
RGBrgb(4, 13, 13)
RGB (0–1)0.0157, 0.051, 0.051
RGB percentages1.6%, 5.1%, 5.1%
HSLhsl(180, 52.9%, 3.3%)
HSV / HSBhsv(180, 69.2%, 5.1%)
CMYK69.2%, 0%, 0%, 94.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer265,485
CSS custom property--colour: #040D0D;

Brightness & contrast

Relative luminance0.00343WCAG 2.x, 0 is black and 1 is white
Perceived brightness11.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.65:1
Contrast with white19.65:1WCAG normal text: AAA
Contrast with black1.07:1WCAG normal text: Fail
Greyscale equivalent#0B0B0B
Inverted#FBF2F2

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0C0C0Dno red cones; affects about 1% of men; ΔE 2.6 from the original
Deuteranopia#0A0B0Dno green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#020E0Dno blue cones; rare, and affects men and women equally; ΔE 1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.65:1WCAG large text: AAA
Contrast with black, large text1.07:1WCAG large text: Fail

Named colours

Black · ΔE 4Dark slate grey · ΔE 29.8Dim grey · ΔE 41.4Gray · ΔE 50.6Slate grey · ΔE 50.7Dark olivegreen · ΔE 52.8
Nearest named CSS colourBlack (#000000)ΔE 4.02, a close match
Hue familycyan
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#0D0404
Analogous#040D09, #04090D
Triadic#0D040D, #0D0D04
Split complementary#0D0409, #0D0904
Tetradic#09040D, #0D0404, #090D04

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#34A9A9
Lighter +30%#288282
Lighter +20%#1C5B5B
Lighter +10%#103434
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#020F0F
Less saturated −25%#060B0B

Channel breakdown

R4
G13
B13
Red4 (1.6%)
Green13 (5.1%)
Blue13 (5.1%)
Hue180°
Saturation (HSL)52.94%
Lightness3.33%
Dominant channelGreen and Blue
Hex per channelR 04 · G 0D · B 0D

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Every value on this page was computed from “040d0d” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.