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Recognised as Colour

#030313

  • #030313
  • Blue
  • Dark
  • Nearest: Black

#030313 is a blue with RGB values 3, 3, 19 and HSL 240°, 73%, 4%. 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

#030313#030313
HEX#030313
RGBrgb(3, 3, 19)
RGB (0–1)0.0118, 0.0118, 0.0745
RGB percentages1.2%, 1.2%, 7.5%
HSLhsl(240, 72.7%, 4.3%)
HSV / HSBhsv(240, 84.2%, 7.5%)
CMYK84.2%, 84.2%, 0%, 92.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer197,395
CSS custom property--colour: #030313;

Brightness & contrast

Relative luminance0.00132WCAG 2.x, 0 is black and 1 is white
Perceived brightness7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 20.46:1
Contrast with white20.46:1WCAG normal text: AAA
Contrast with black1.03:1WCAG normal text: Fail
Greyscale equivalent#040404
Inverted#FCFCEC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#000514no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#000413no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#000609no blue cones; rare, and affects men and women equally; ΔE 6.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text20.46:1WCAG large text: AAA
Contrast with black, large text1.03:1WCAG large text: Fail

Named colours

Black · ΔE 7.5Dark slate grey · ΔE 33.4Dim grey · ΔE 43.9Dark slateblue · ΔE 51.6Slate grey · ΔE 52Gray · ΔE 52.9
Nearest named CSS colourBlack (#000000)ΔE 7.53, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#131303
Analogous#030B13, #0B0313
Triadic#130303, #031303
Split complementary#130B03, #0B1303
Tetradic#13030B, #131303, #03130B

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1F1FC3
Lighter +30%#181897
Lighter +20%#11116B
Lighter +10%#0A0A3F
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000016
Less saturated −25%#060610

Channel breakdown

R3
G3
B19
Red3 (1.2%)
Green3 (1.2%)
Blue19 (7.5%)
Hue240°
Saturation (HSL)72.73%
Lightness4.31%
Dominant channelBlue
Hex per channelR 03 · G 03 · B 13

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Every value on this page was computed from “hex 030313” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.