Colour

#1E173F

#1E173F
Blue
Dark
Nearest: Dark slateblue

#1E173F is a blue with RGB values 30, 23, 63 and HSL 251°, 47%, 17%. It is a dark colour, so white text on it reaches 16.8:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1E173F#1E173F

HEX#1E173F

RGBrgb(30, 23, 63)

RGB (0–1)0.1176, 0.0902, 0.2471

RGB percentages11.8%, 9%, 24.7%

HSLhsl(250.5, 46.5%, 16.9%)

HSV / HSBhsv(250.5, 63.5%, 24.7%)

CMYK52.4%, 63.5%, 0%, 75.3%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,972,031

CSS custom property--colour: #1E173F;

Brightness & contrast

Relative luminance0.01248WCAG 2.x, 0 is black and 1 is white

Perceived brightness32.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 16.81:1

Contrast with white16.81:1WCAG normal text: AAA

Contrast with black1.25:1WCAG normal text: Fail

Greyscale equivalent#1B1B1B

Inverted#E1E8C0

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#031E40no red cones; affects about 1% of men; ΔE 10.6 from the original

Deuteranopia#031C3Eno green cones; the most common form, about 1% of men; ΔE 9.9 from the original

Tritanopia#142028no blue cones; rare, and affects men and women equally; ΔE 25.3 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text16.81:1WCAG large text: AAA

Contrast with black, large text1.25:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 28.5 Midnight blue · ΔE 30.1 Black · ΔE 31.1 Dark slate grey · ΔE 40 Rebecca purple · ΔE 41.6 Dim grey · ΔE 44.4

Nearest named CSS colourDark slateblue (#483D8B)ΔE 28.48, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#383F17

Analogous#17243F, #32173F

Triadic#3F1E17, #173F1E

Split complementary#3F3217, #243F17

Tetradic#3F1724, #383F17, #173F32

Tints, shades & saturation

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

Lighter +40%#705EC4

Lighter +30%#5340AF

Lighter +20%#42328A

Lighter +10%#302564

Darker −10%#0C091A

Darker −20%#000000

Darker −30%#000000

Darker −40%#000000

More saturated +25%#170C4A

Less saturated −25%#252234

Channel breakdown

R30

G23

B63

Red30 (11.8%)

Green23 (9%)

Blue63 (24.7%)

Hue250.5°

Saturation (HSL)46.51%

Lightness16.86%

Dominant channelBlue

Hex per channelR 1E · G 17 · B 3F

Keep nerding

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#1E173F

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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