Recognised as Colour

#0A173C

#0A173C
Blue
Dark
Nearest: Black

#0A173C is a blue with RGB values 10, 23, 60 and HSL 224°, 71%, 14%. It is a dark colour, so white text on it reaches 17.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#0A173C#0A173C

HEX#0A173C

RGBrgb(10, 23, 60)

RGB (0–1)0.0392, 0.0902, 0.2353

RGB percentages3.9%, 9%, 23.5%

HSLhsl(224.4, 71.4%, 13.7%)

HSV / HSBhsv(224.4, 83.3%, 23.5%)

CMYK83.3%, 61.7%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer661,308

CSS custom property--colour: #0A173C;

Brightness & contrast

Relative luminance0.01004WCAG 2.x, 0 is black and 1 is white

Perceived brightness27.4 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 17.49:1

Contrast with white17.49:1WCAG normal text: AAA

Contrast with black1.2:1WCAG normal text: Fail

Greyscale equivalent#171717

Inverted#F5E8C3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#011C3Dno red cones; affects about 1% of men; ΔE 5.4 from the original

Deuteranopia#00173Bno green cones; the most common form, about 1% of men; ΔE 2.3 from the original

Tritanopia#002026no blue cones; rare, and affects men and women equally; ΔE 26.4 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text17.49:1WCAG large text: AAA

Contrast with black, large text1.2:1WCAG large text: Fail

Named colours

Black · ΔE 28.9 Dark slateblue · ΔE 31.7 Midnight blue · ΔE 33.1 Dark slate grey · ΔE 38 Dim grey · ΔE 44.8 Rebecca purple · ΔE 46

Nearest named CSS colourBlack (#000000)ΔE 28.87, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3C2F0A

Analogous#0A303C, #160A3C

Triadic#3C0A17, #173C0A

Split complementary#3C160A, #303C0A

Tetradic#3C0A30, #3C2F0A, #0A3C16

Tints, shades & saturation

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

Lighter +40%#3561DD

Lighter +30%#2049BF

Lighter +20%#193993

Lighter +10%#112868

Darker −10%#030610

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#011345

Less saturated −25%#131B33

Channel breakdown

R10

G23

B60

Red10 (3.9%)

Green23 (9%)

Blue60 (23.5%)

Hue224.4°

Saturation (HSL)71.43%

Lightness13.73%

Dominant channelBlue

Hex per channelR 0A · G 17 · B 3C

Keep nerding

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

#0A173C

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

Nerdulate something else