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Recognised as Colour

#1A1539

  • #1A1539
  • Blue
  • Dark
  • Nearest: Black

#1A1539 is a blue with RGB values 26, 21, 57 and HSL 248°, 46%, 15%. It is a dark colour, so white text on it reaches 17.4:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#1A1539#1A1539
HEX#1A1539
RGBrgb(26, 21, 57)
RGB (0–1)0.102, 0.0824, 0.2235
RGB percentages10.2%, 8.2%, 22.4%
HSLhsl(248.3, 46.2%, 15.3%)
HSV / HSBhsv(248.3, 63.2%, 22.4%)
CMYK54.4%, 63.2%, 0%, 77.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,709,369
CSS custom property--colour: #1A1539;

Brightness & contrast

Relative luminance0.01051WCAG 2.x, 0 is black and 1 is white
Perceived brightness28.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.35:1
Contrast with white17.35:1WCAG normal text: AAA
Contrast with black1.21:1WCAG normal text: Fail
Greyscale equivalent#191919
Inverted#E5EAC6

Colour vision & accessibility

Protanopia#041B3Ano red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#031938no green cones; the most common form, about 1% of men; ΔE 8.7 from the original
Tritanopia#101D24no blue cones; rare, and affects men and women equally; ΔE 23.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.35:1WCAG large text: AAA
Contrast with black, large text1.21:1WCAG large text: Fail

Named colours

Nearest named CSS colourBlack (#000000)ΔE 28.24, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#343915
Analogous#152239, #2C1539
Triadic#391A15, #15391A
Split complementary#392C15, #223915
Tetradic#391522, #343915, #15392C

Tints, shades & saturation

Lighter +40%#6758C2
Lighter +30%#4D3EA9
Lighter +20%#3C3084
Lighter +10%#2B235E
Darker −10%#090714
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#130B43
Less saturated −25%#211F2F

Channel breakdown

R26
G21
B57
Red26 (10.2%)
Green21 (8.2%)
Blue57 (22.4%)
Hue248.33°
Saturation (HSL)46.15%
Lightness15.29%
Dominant channelBlue
Hex per channelR 1A · G 15 · B 39

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Every value on this page was computed from “1a1539” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.