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Colour

#091121

  • #091121
  • Blue
  • Dark
  • Nearest: Black

#091121 is a blue with RGB values 9, 17, 33 and HSL 220°, 57%, 8%. It is a dark colour, so white text on it reaches 18.9:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#091121#091121
HEX#091121
RGBrgb(9, 17, 33)
RGB (0–1)0.0353, 0.0667, 0.1294
RGB percentages3.5%, 6.7%, 12.9%
HSLhsl(220, 57.1%, 8.2%)
HSV / HSBhsv(220, 72.7%, 12.9%)
CMYK72.7%, 48.5%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer594,209
CSS custom property--colour: #091121;

Brightness & contrast

Relative luminance0.00569WCAG 2.x, 0 is black and 1 is white
Perceived brightness17.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.86:1
Contrast with white18.86:1WCAG normal text: AAA
Contrast with black1.11:1WCAG normal text: Fail
Greyscale equivalent#101010
Inverted#F6EEDE

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0B1222no red cones; affects about 1% of men; ΔE 0.6 from the original
Deuteranopia#081021no green cones; the most common form, about 1% of men; ΔE 0.7 from the original
Tritanopia#011517no blue cones; rare, and affects men and women equally; ΔE 11.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.86:1WCAG large text: AAA
Contrast with black, large text1.11:1WCAG large text: Fail

Named colours

Black · ΔE 12.9Dark slate grey · ΔE 30.5Dim grey · ΔE 41Dark slateblue · ΔE 46.5Slate grey · ΔE 47.9Midnight blue · ΔE 49.4
Nearest named CSS colourBlack (#000000)ΔE 12.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#211909
Analogous#091D21, #0D0921
Triadic#210911, #112109
Split complementary#210D09, #1D2109
Tetradic#21091D, #211909, #09210D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3564C1
Lighter +30%#2A4F99
Lighter +20%#1F3A71
Lighter +10%#142649
Darker −10%#000000
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#040F26
Less saturated −25%#0E131C

Channel breakdown

R9
G17
B33
Red9 (3.5%)
Green17 (6.7%)
Blue33 (12.9%)
Hue220°
Saturation (HSL)57.14%
Lightness8.24%
Dominant channelBlue
Hex per channelR 09 · G 11 · B 21

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Every value on this page was computed from “hex 091121” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.