Colour

#1D3865

#1D3865
Blue
Dark
Nearest: Dark slateblue

#1D3865 is a blue with RGB values 29, 56, 101 and HSL 218°, 55%, 25%. It is a dark colour, so white text on it reaches 11.6:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1D3865#1D3865

HEX#1D3865

RGBrgb(29, 56, 101)

RGB (0–1)0.1137, 0.2196, 0.3961

RGB percentages11.4%, 22%, 39.6%

HSLhsl(217.5, 55.4%, 25.5%)

HSV / HSBhsv(217.5, 71.3%, 39.6%)

CMYK71.3%, 44.6%, 0%, 60.4%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer1,914,981

CSS custom property--colour: #1D3865;

Brightness & contrast

Relative luminance0.04029WCAG 2.x, 0 is black and 1 is white

Perceived brightness57.1 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 11.63:1

Contrast with white11.63:1WCAG normal text: AAA

Contrast with black1.81:1WCAG normal text: Fail

Greyscale equivalent#363636

Inverted#E2C79A

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#233C67no red cones; affects about 1% of men; ΔE 2.4 from the original

Deuteranopia#183564no green cones; the most common form, about 1% of men; ΔE 2 from the original

Tritanopia#004249no blue cones; rare, and affects men and women equally; ΔE 29.7 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text11.63:1WCAG large text: AAA

Contrast with black, large text1.81:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 24.4 Steel blue · ΔE 30.6 Dark slate grey · ΔE 32.4 Midnight blue · ΔE 33.3 Slate grey · ΔE 35.7 Dim grey · ΔE 36.6

Nearest named CSS colourDark slateblue (#483D8B)ΔE 24.4, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#654A1D

Analogous#1D5C65, #261D65

Triadic#651D38, #38651D

Split complementary#65261D, #5C651D

Tetradic#651D5C, #654A1D, #1D6526

Tints, shades & saturation

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

Lighter +40%#769BD8

Lighter +30%#4F7ECC

Lighter +20%#3464B4

Lighter +10%#284E8D

Darker −10%#12223D

Darker −20%#060C16

Darker −30%#000000

Darker −40%#000000

More saturated +25%#0D3475

Less saturated −25%#2D3C55

Channel breakdown

R29

G56

B101

Red29 (11.4%)

Green56 (22%)

Blue101 (39.6%)

Hue217.5°

Saturation (HSL)55.38%

Lightness25.49%

Dominant channelBlue

Hex per channelR 1D · G 38 · B 65

Keep nerding

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#1D3865

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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