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Recognised as Colour

#1B0973

  • #1B0973
  • Blue
  • Dark
  • Nearest: Midnight blue

#1B0973 is a blue with RGB values 27, 9, 115 and HSL 250°, 85%, 24%. It is a dark colour, so white text on it reaches 15.8:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1B0973#1B0973
HEX#1B0973
RGBrgb(27, 9, 115)
RGB (0–1)0.1059, 0.0353, 0.451
RGB percentages10.6%, 3.5%, 45.1%
HSLhsl(250.2, 85.5%, 24.3%)
HSV / HSBhsv(250.2, 92.2%, 45.1%)
CMYK76.5%, 92.2%, 0%, 54.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,771,891
CSS custom property--colour: #1B0973;

Brightness & contrast

Relative luminance0.01666WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.75:1
Contrast with white15.75:1WCAG normal text: AAA
Contrast with black1.33:1WCAG normal text: Fail
Greyscale equivalent#141414
Inverted#E4F68C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002776no red cones; affects about 1% of men; ΔE 20.2 from the original
Deuteranopia#001E71no green cones; the most common form, about 1% of men; ΔE 15 from the original
Tritanopia#002E42no blue cones; rare, and affects men and women equally; ΔE 60.8 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text15.75:1WCAG large text: AAA
Contrast with black, large text1.33:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 11Navy · ΔE 11.6Indigo · ΔE 12.9Dark blue · ΔE 16.5Rebecca purple · ΔE 21Dark slateblue · ΔE 26.2
Nearest named CSS colourMidnight blue (#191970)ΔE 11, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#617309
Analogous#092C73, #500973
Triadic#731B09, #09731B
Split complementary#735009, #2C7309
Tetradic#73092C, #617309, #097350

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7156F2
Lighter +30%#4927EE
Lighter +20%#3110D2
Lighter +10%#260DA2
Darker −10%#100544
Darker −20%#050214
Darker −30%#000000
Darker −40%#000000
More saturated +25%#15007C
Less saturated −25%#251864

Channel breakdown

R27
G9
B115
Red27 (10.6%)
Green9 (3.5%)
Blue115 (45.1%)
Hue250.19°
Saturation (HSL)85.48%
Lightness24.31%
Dominant channelBlue
Hex per channelR 1B · G 09 · B 73

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Every value on this page was computed from “1b0973” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.