Colour

#18176E

#18176E
Blue
Dark
Nearest: Midnight blue

#18176E is a blue with RGB values 24, 23, 110 and HSL 241°, 65%, 26%. It is a dark colour, so white text on it reaches 15.1:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#18176E#18176E

HEX#18176E

RGBrgb(24, 23, 110)

RGB (0–1)0.0941, 0.0902, 0.4314

RGB percentages9.4%, 9%, 43.1%

HSLhsl(240.7, 65.4%, 26.1%)

HSV / HSBhsv(240.7, 79.1%, 43.1%)

CMYK78.2%, 79.1%, 0%, 56.9%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,578,862

CSS custom property--colour: #18176E;

Brightness & contrast

Relative luminance0.01933WCAG 2.x, 0 is black and 1 is white

Perceived brightness43.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 15.15:1

Contrast with white15.15:1WCAG normal text: AAA

Contrast with black1.39:1WCAG normal text: Fail

Greyscale equivalent#1D1D1D

Inverted#E7E891

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#002A71no red cones; affects about 1% of men; ΔE 15.3 from the original

Deuteranopia#00226Cno green cones; the most common form, about 1% of men; ΔE 10.8 from the original

Tritanopia#003141no blue cones; rare, and affects men and women equally; ΔE 53.8 from the original

Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning

Contrast with white, large text15.15:1WCAG large text: AAA

Contrast with black, large text1.39:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 0.8 Dark slateblue · ΔE 18.4 Indigo · ΔE 20.6 Rebecca purple · ΔE 20.9 Navy · ΔE 21.7 Dark blue · ΔE 26.5

Nearest named CSS colourMidnight blue (#191970)ΔE 0.84, indistinguishable to the eye

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#6D6E17

Analogous#17426E, #43176E

Triadic#6E1817, #176E18

Split complementary#6E4317, #426E17

Tetradic#6E1742, #6D6E17, #176E43

Tints, shades & saturation

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

Lighter +40%#7170E1

Lighter +30%#4746D8

Lighter +20%#2A29C2

Lighter +10%#212098

Darker −10%#0F0E44

Darker −20%#06051A

Darker −30%#000000

Darker −40%#000000

More saturated +25%#08067F

Less saturated −25%#28285D

Channel breakdown

R24

G23

B110

Red24 (9.4%)

Green23 (9%)

Blue110 (43.1%)

Hue240.69°

Saturation (HSL)65.41%

Lightness26.08%

Dominant channelBlue

Hex per channelR 18 · G 17 · B 6E

Keep nerding

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#18176E

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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