Colour

#1B3662

#1B3662
Blue
Dark
Nearest: Dark slateblue

#1B3662 is a blue with RGB values 27, 54, 98 and HSL 217°, 57%, 25%. It is a dark colour, so white text on it reaches 12:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1B3662#1B3662

HEX#1B3662

RGBrgb(27, 54, 98)

RGB (0–1)0.1059, 0.2118, 0.3843

RGB percentages10.6%, 21.2%, 38.4%

HSLhsl(217.2, 56.8%, 24.5%)

HSV / HSBhsv(217.2, 72.4%, 38.4%)

CMYK72.4%, 44.9%, 0%, 61.6%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,783,394

CSS custom property--colour: #1B3662;

Brightness & contrast

Relative luminance0.03753WCAG 2.x, 0 is black and 1 is white

Perceived brightness55 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12:1

Contrast with white12:1WCAG normal text: AAA

Contrast with black1.75:1WCAG normal text: Fail

Greyscale equivalent#333333

Inverted#E4C99D

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#213A64no red cones; affects about 1% of men; ΔE 2.4 from the original

Deuteranopia#163361no green cones; the most common form, about 1% of men; ΔE 2 from the original

Tritanopia#004047no blue cones; rare, and affects men and women equally; ΔE 29 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12:1WCAG large text: AAA

Contrast with black, large text1.75:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 25.1 Steel blue · ΔE 31.5 Dark slate grey · ΔE 32.2 Midnight blue · ΔE 33.5 Slate grey · ΔE 36.2 Dim grey · ΔE 36.8

Nearest named CSS colourDark slateblue (#483D8B)ΔE 25.06, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#62471B

Analogous#1B5A62, #241B62

Triadic#621B36, #36621B

Split complementary#62241B, #5A621B

Tetradic#621B5A, #62471B, #1B6224

Tints, shades & saturation

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

Lighter +40%#7198D8

Lighter +30%#497BCD

Lighter +20%#3162B2

Lighter +10%#264C8A

Darker −10%#10203A

Darker −20%#050A12

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0B3272

Less saturated −25%#2B3A52

Channel breakdown

R27

G54

B98

Red27 (10.6%)

Green54 (21.2%)

Blue98 (38.4%)

Hue217.18°

Saturation (HSL)56.8%

Lightness24.51%

Dominant channelBlue

Hex per channelR 1B · G 36 · B 62

Keep nerding

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

#1B3662

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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