Recognised as Colour

#17203C

#17203C
Blue
Dark
Nearest: Black

#17203C is a blue with RGB values 23, 32, 60 and HSL 225°, 45%, 16%. It is a dark colour, so white text on it reaches 16.1:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#17203C#17203C

HEX#17203C

RGBrgb(23, 32, 60)

RGB (0–1)0.0902, 0.1255, 0.2353

RGB percentages9%, 12.5%, 23.5%

HSLhsl(225.4, 44.6%, 16.3%)

HSV / HSBhsv(225.4, 61.7%, 23.5%)

CMYK61.7%, 46.7%, 0%, 76.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,515,580

CSS custom property--colour: #17203C;

Brightness & contrast

Relative luminance0.01541WCAG 2.x, 0 is black and 1 is white

Perceived brightness34.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.05:1

Contrast with white16.05:1WCAG normal text: AAA

Contrast with black1.31:1WCAG normal text: Fail

Greyscale equivalent#202020

Inverted#E8DFC3

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#15233Dno red cones; affects about 1% of men; ΔE 2.7 from the original

Deuteranopia#10203Bno green cones; the most common form, about 1% of men; ΔE 2.2 from the original

Tritanopia#05262Bno blue cones; rare, and affects men and women equally; ΔE 20 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.05:1WCAG large text: AAA

Contrast with black, large text1.31:1WCAG large text: Fail

Named colours

Black · ΔE 23.9 Dark slate grey · ΔE 29.9 Dark slateblue · ΔE 35.3 Dim grey · ΔE 37.4 Midnight blue · ΔE 39.9 Slate grey · ΔE 41.7

Nearest named CSS colourBlack (#000000)ΔE 23.94, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3C3317

Analogous#17323C, #21173C

Triadic#3C1720, #203C17

Split complementary#3C2117, #323C17

Tetradic#3C1732, #3C3317, #173C21

Tints, shades & saturation

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

Lighter +40%#5E76C1

Lighter +30%#415BAB

Lighter +20%#334786

Lighter +10%#253461

Darker −10%#090C17

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0D1B46

Less saturated −25%#212532

Channel breakdown

R23

G32

B60

Red23 (9%)

Green32 (12.5%)

Blue60 (23.5%)

Hue225.41°

Saturation (HSL)44.58%

Lightness16.27%

Dominant channelBlue

Hex per channelR 17 · G 20 · B 3C

Keep nerding

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

#17203C

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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