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Colour

#011F49

  • #011F49
  • Blue
  • Dark
  • Nearest: Dark slateblue

#011F49 is a blue with RGB values 1, 31, 73 and HSL 215°, 97%, 15%. It is a dark colour, so white text on it reaches 16.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#011F49#011F49
HEX#011F49
RGBrgb(1, 31, 73)
RGB (0–1)0.0039, 0.1216, 0.2863
RGB percentages0.4%, 12.2%, 28.6%
HSLhsl(215, 97.3%, 14.5%)
HSV / HSBhsv(215, 98.6%, 28.6%)
CMYK98.6%, 57.5%, 0%, 71.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer73,545
CSS custom property--colour: #011F49;

Brightness & contrast

Relative luminance0.01467WCAG 2.x, 0 is black and 1 is white
Perceived brightness34.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.24:1
Contrast with white16.24:1WCAG normal text: AAA
Contrast with black1.29:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#FEE0B6

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#03244Bno red cones; affects about 1% of men; ΔE 3.7 from the original
Deuteranopia#001D48no green cones; the most common form, about 1% of men; ΔE 1.4 from the original
Tritanopia#002930no blue cones; rare, and affects men and women equally; ΔE 28.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.24:1WCAG large text: AAA
Contrast with black, large text1.29:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.5Midnight blue · ΔE 31.1Black · ΔE 32.8Dark slate grey · ΔE 37.6Steel blue · ΔE 42.1Rebecca purple · ΔE 43.9
Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.55, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#492B01
Analogous#014349, #070149
Triadic#49011F, #1F4901
Split complementary#490701, #434901
Tetradic#490143, #492B01, #014907

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#1A78FC
Lighter +30%#035FE0
Lighter +20%#024AAE
Lighter +10%#02347B
Darker −10%#000A17
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001F4A
Less saturated −25%#0A2140

Channel breakdown

R1
G31
B73
Red1 (0.4%)
Green31 (12.2%)
Blue73 (28.6%)
Hue215°
Saturation (HSL)97.3%
Lightness14.51%
Dominant channelBlue
Hex per channelR 01 · G 1F · B 49

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Every value on this page was computed from “011f49” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.