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Recognised as Colour

#000319

  • #000319
  • Blue
  • Dark
  • Nearest: Black

#000319 is a blue with RGB values 0, 3, 25 and HSL 233°, 100%, 5%. 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

#000319#000319
HEX#000319
RGBrgb(0, 3, 25)
RGB (0–1)0, 0.0118, 0.098
RGB percentages0%, 1.2%, 9.8%
HSLhsl(232.8, 100%, 4.9%)
HSV / HSBhsv(232.8, 100%, 9.8%)
CMYK100%, 88%, 0%, 90.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer793
CSS custom property--colour: #000319;

Brightness & contrast

Relative luminance0.00135WCAG 2.x, 0 is black and 1 is white
Perceived brightness8.7 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#FFFCE6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00061Ano red cones; affects about 1% of men; ΔE 1.1 from the original
Deuteranopia#000419no green cones; the most common form, about 1% of men; ΔE 0.5 from the original
Tritanopia#00080Cno blue cones; rare, and affects men and women equally; ΔE 10.2 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 11.8Dark slate grey · ΔE 34.4Dim grey · ΔE 44.8Dark slateblue · ΔE 48.4Midnight blue · ΔE 49.9Slate grey · ΔE 51.9
Nearest named CSS colourBlack (#000000)ΔE 11.79, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#191600
Analogous#001019, #090019
Triadic#190003, #031900
Split complementary#190900, #101900
Tetradic#190010, #191600, #001909

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#001BE5
Lighter +30%#0015B2
Lighter +20%#000F7F
Lighter +10%#00094C
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000319
Less saturated −25%#030516

Channel breakdown

R0
G3
B25
Red0 (0%)
Green3 (1.2%)
Blue25 (9.8%)
Hue232.8°
Saturation (HSL)100%
Lightness4.9%
Dominant channelBlue
Hex per channelR 00 · G 03 · B 19

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Every value on this page was computed from “hex 000319” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.