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Recognised as Colour

#030A1B

  • #030A1B
  • Blue
  • Dark
  • Nearest: Black

#030A1B is a blue with RGB values 3, 10, 27 and HSL 223°, 80%, 6%. It is a dark colour, so white text on it reaches 19.8:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#030A1B#030A1B
HEX#030A1B
RGBrgb(3, 10, 27)
RGB (0–1)0.0118, 0.0392, 0.1059
RGB percentages1.2%, 3.9%, 10.6%
HSLhsl(222.5, 80%, 5.9%)
HSV / HSBhsv(222.5, 88.9%, 10.6%)
CMYK88.9%, 63%, 0%, 89.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer199,195
CSS custom property--colour: #030A1B;

Brightness & contrast

Relative luminance0.00316WCAG 2.x, 0 is black and 1 is white
Perceived brightness12 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.75:1
Contrast with white19.75:1WCAG normal text: AAA
Contrast with black1.06:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#FCF5E4

Colour vision & accessibility

Protanopia#040C1Cno red cones; affects about 1% of men; ΔE 0.6 from the original
Deuteranopia#01091Bno green cones; the most common form, about 1% of men; ΔE 0.6 from the original
Tritanopia#000E11no blue cones; rare, and affects men and women equally; ΔE 9.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.75:1WCAG large text: AAA
Contrast with black, large text1.06:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 10.99, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#1B1403
Analogous#03161B, #08031B
Triadic#1B030A, #0A1B03
Split complementary#1B0803, #161B03
Tetradic#1B0316, #1B1403, #031B08

Tints, shades & saturation

Lighter +40%#174ED3
Lighter +30%#123DA5
Lighter +20%#0D2C77
Lighter +10%#081B49
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#00091E
Less saturated −25%#070C17

Channel breakdown

R3
G10
B27
Red3 (1.2%)
Green10 (3.9%)
Blue27 (10.6%)
Hue222.5°
Saturation (HSL)80%
Lightness5.88%
Dominant channelBlue
Hex per channelR 03 · G 0A · B 1B

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Every value on this page was computed from “030a1b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.