Colour

#17243D

#17243D
Blue
Dark
Nearest: Black

#17243D is a blue with RGB values 23, 36, 61 and HSL 219°, 45%, 16%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Black.

Colour values

#17243D#17243D

HEX#17243D

RGBrgb(23, 36, 61)

RGB (0–1)0.0902, 0.1412, 0.2392

RGB percentages9%, 14.1%, 23.9%

HSLhsl(219.5, 45.2%, 16.5%)

HSV / HSBhsv(219.5, 62.3%, 23.9%)

CMYK62.3%, 41%, 0%, 76.1%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,516,605

CSS custom property--colour: #17243D;

Brightness & contrast

Relative luminance0.01781WCAG 2.x, 0 is black and 1 is white

Perceived brightness36.6 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.48:1

Contrast with white15.48:1WCAG normal text: AAA

Contrast with black1.36:1WCAG normal text: Fail

Greyscale equivalent#232323

Inverted#E8DBC2

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#1A263Eno red cones; affects about 1% of men; ΔE 1.3 from the original

Deuteranopia#15233Cno green cones; the most common form, about 1% of men; ΔE 0.6 from the original

Tritanopia#03292Dno blue cones; rare, and affects men and women equally; ΔE 18.5 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text15.48:1WCAG large text: AAA

Contrast with black, large text1.36:1WCAG large text: Fail

Named colours

Black · ΔE 23 Dark slate grey · ΔE 26.7 Dim grey · ΔE 35.1 Dark slateblue · ΔE 37.2 Slate grey · ΔE 39.6 Steel blue · ΔE 41.5

Nearest named CSS colourBlack (#000000)ΔE 23.02, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#3D3017

Analogous#17373D, #1D173D

Triadic#3D1724, #243D17

Split complementary#3D1D17, #373D17

Tetradic#3D1737, #3D3017, #173D1D

Tints, shades & saturation

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

Lighter +40%#5E80C2

Lighter +30%#4166AC

Lighter +20%#335087

Lighter +10%#253A62

Darker −10%#090E18

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0C2148

Less saturated −25%#212733

Channel breakdown

R23

G36

B61

Red23 (9%)

Green36 (14.1%)

Blue61 (23.9%)

Hue219.47°

Saturation (HSL)45.24%

Lightness16.47%

Dominant channelBlue

Hex per channelR 17 · G 24 · B 3D

Keep nerding

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

#17243D

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