Recognised as Colour

#091821

#091821
Blue
Dark
Nearest: Black

#091821 is a blue with RGB values 9, 24, 33 and HSL 203°, 57%, 8%. It is a dark colour, so white text on it reaches 18:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#091821#091821

HEX#091821

RGBrgb(9, 24, 33)

RGB (0–1)0.0353, 0.0941, 0.1294

RGB percentages3.5%, 9.4%, 12.9%

HSLhsl(202.5, 57.1%, 8.2%)

HSV / HSBhsv(202.5, 72.7%, 12.9%)

CMYK72.7%, 27.3%, 0%, 87.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer596,001

CSS custom property--colour: #091821;

Brightness & contrast

Relative luminance0.00821WCAG 2.x, 0 is black and 1 is white

Perceived brightness22.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 18.04:1

Contrast with white18.04:1WCAG normal text: AAA

Contrast with black1.16:1WCAG normal text: Fail

Greyscale equivalent#151515

Inverted#F6E7DE

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#141821no red cones; affects about 1% of men; ΔE 4 from the original

Deuteranopia#111521no green cones; the most common form, about 1% of men; ΔE 4.7 from the original

Tritanopia#001A1Bno blue cones; rare, and affects men and women equally; ΔE 7.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text18.04:1WCAG large text: AAA

Contrast with black, large text1.16:1WCAG large text: Fail

Named colours

Black · ΔE 11.4 Dark slate grey · ΔE 25.9 Dim grey · ΔE 38 Slate grey · ΔE 45.5 Gray · ΔE 47 Teal · ΔE 48.5

Nearest named CSS colourBlack (#000000)ΔE 11.39, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

base +30°+90°+120°+180°+210°+240°+270°+330°

Complementary#211209

Analogous#09211E, #090C21

Triadic#210918, #182109

Split complementary#21090C, #211E09

Tetradic#1E0921, #211209, #0C2109

Tints, shades & saturation

+40%+30%+20%+10%base -10%-20%-30%-40%

Lighter +40%#358DC1

Lighter +30%#2A6F99

Lighter +20%#1F5271

Lighter +10%#143549

Darker −10%#000000

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#041926

Less saturated −25%#0E171C

Channel breakdown

G24

B33

Red9 (3.5%)

Green24 (9.4%)

Blue33 (12.9%)

Hue202.5°

Saturation (HSL)57.14%

Lightness8.24%

Dominant channelBlue

Hex per channelR 09 · G 18 · B 21

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

#091821

Colour values

Brightness & contrast

Colour vision & accessibility

Named colours

Colour harmonies

Tints, shades & saturation

Channel breakdown

Keep nerding

Harmonies

Lighter and darker

Similar named colours

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