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Recognised as Colour

#091131

  • #091131
  • Blue
  • Dark
  • Nearest: Black

#091131 is a blue with RGB values 9, 17, 49 and HSL 228°, 69%, 11%. It is a dark colour, so white text on it reaches 18.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#091131#091131
HEX#091131
RGBrgb(9, 17, 49)
RGB (0–1)0.0353, 0.0667, 0.1922
RGB percentages3.5%, 6.7%, 19.2%
HSLhsl(228, 69%, 11.4%)
HSV / HSBhsv(228, 81.6%, 19.2%)
CMYK81.6%, 65.3%, 0%, 80.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer594,225
CSS custom property--colour: #091131;

Brightness & contrast

Relative luminance0.00681WCAG 2.x, 0 is black and 1 is white
Perceived brightness21.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.48:1
Contrast with white18.48:1WCAG normal text: AAA
Contrast with black1.14:1WCAG normal text: Fail
Greyscale equivalent#121212
Inverted#F6EECE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001632no red cones; affects about 1% of men; ΔE 5.2 from the original
Deuteranopia#001230no green cones; the most common form, about 1% of men; ΔE 3.5 from the original
Tritanopia#00191Eno blue cones; rare, and affects men and women equally; ΔE 22.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.48:1WCAG large text: AAA
Contrast with black, large text1.14:1WCAG large text: Fail

Named colours

Black · ΔE 24.7Dark slateblue · ΔE 36Midnight blue · ΔE 36.9Dark slate grey · ΔE 37.4Dim grey · ΔE 45.1Steel blue · ΔE 49.2
Nearest named CSS colourBlack (#000000)ΔE 24.7, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#312909
Analogous#092531, #150931
Triadic#310911, #113109
Split complementary#311509, #253109
Tetradic#310925, #312909, #093115

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#2D50D9
Lighter +30%#213EB2
Lighter +20%#192F87
Lighter +10%#11205C
Darker −10%#010206
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#020D38
Less saturated −25%#10152A

Channel breakdown

R9
G17
B49
Red9 (3.5%)
Green17 (6.7%)
Blue49 (19.2%)
Hue228°
Saturation (HSL)68.97%
Lightness11.37%
Dominant channelBlue
Hex per channelR 09 · G 11 · B 31

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Every value on this page was computed from “hex 091131” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.