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Recognised as Colour

#030A1F

  • #030A1F
  • Blue
  • Dark
  • Nearest: Black

#030A1F is a blue with RGB values 3, 10, 31 and HSL 225°, 82%, 7%. 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

#030A1F#030A1F
HEX#030A1F
RGBrgb(3, 10, 31)
RGB (0–1)0.0118, 0.0392, 0.1216
RGB percentages1.2%, 3.9%, 12.2%
HSLhsl(225, 82.4%, 6.7%)
HSV / HSBhsv(225, 90.3%, 12.2%)
CMYK90.3%, 67.7%, 0%, 87.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer199,199
CSS custom property--colour: #030A1F;

Brightness & contrast

Relative luminance0.00335WCAG 2.x, 0 is black and 1 is white
Perceived brightness13.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.68:1
Contrast with white19.68:1WCAG normal text: AAA
Contrast with black1.07:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#FCF5E0

Colour vision & accessibility

Protanopia#020D20no red cones; affects about 1% of men; ΔE 1.4 from the original
Deuteranopia#000A1Fno green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#000F12no blue cones; rare, and affects men and women equally; ΔE 12.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.68:1WCAG large text: AAA
Contrast with black, large text1.07:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 14.04, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1F1803
Analogous#03181F, #0A031F
Triadic#1F030A, #0A1F03
Split complementary#1F0A03, #181F03
Tetradic#1F0318, #1F1803, #031F0A

Tints, shades & saturation

Lighter +40%#1546D9
Lighter +30%#1037AB
Lighter +20%#0C287C
Lighter +10%#07194E
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000922
Less saturated −25%#070C1B

Channel breakdown

R3
G10
B31
Red3 (1.2%)
Green10 (3.9%)
Blue31 (12.2%)
Hue225°
Saturation (HSL)82.35%
Lightness6.67%
Dominant channelBlue
Hex per channelR 03 · G 0A · B 1F

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Every value on this page was computed from “030a1f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.