Colour

#1F3255

#1F3255
Blue
Dark
Nearest: Dark slate grey

#1F3255 is a blue with RGB values 31, 50, 85 and HSL 219°, 47%, 23%. It is a dark colour, so white text on it reaches 12.8:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1F3255#1F3255

HEX#1F3255

RGBrgb(31, 50, 85)

RGB (0–1)0.1216, 0.1961, 0.3333

RGB percentages12.2%, 19.6%, 33.3%

HSLhsl(218.9, 46.6%, 22.7%)

HSV / HSBhsv(218.9, 63.5%, 33.3%)

CMYK63.5%, 41.2%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,044,501

CSS custom property--colour: #1F3255;

Brightness & contrast

Relative luminance0.03228WCAG 2.x, 0 is black and 1 is white

Perceived brightness50.8 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 12.76:1

Contrast with white12.76:1WCAG normal text: AAA

Contrast with black1.65:1WCAG normal text: Fail

Greyscale equivalent#303030

Inverted#E0CDAA

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#233556no red cones; affects about 1% of men; ΔE 2 from the original

Deuteranopia#1C3054no green cones; the most common form, about 1% of men; ΔE 1.2 from the original

Tritanopia#003A3Fno blue cones; rare, and affects men and women equally; ΔE 25 from the original

Distinguishable without hueYesnever rely on hue alone to carry meaning

Contrast with white, large text12.76:1WCAG large text: AAA

Contrast with black, large text1.65:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 27.7 Dark slateblue · ΔE 30 Black · ΔE 31.9 Dim grey · ΔE 33.6 Steel blue · ΔE 33.8 Slate grey · ΔE 35.1

Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 27.71, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#55421F

Analogous#1F4D55, #271F55

Triadic#551F32, #32551F

Split complementary#55271F, #4D551F

Tetradic#551F4D, #55421F, #1F5527

Tints, shades & saturation

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

Lighter +40%#7493CC

Lighter +30%#4E76BF

Lighter +20%#3A5EA0

Lighter +10%#2D487A

Darker −10%#111C30

Darker −20%#04060A

Darker −30%#000000

Darker −40%#000000

More saturated +25%#112E63

Less saturated −25%#2E3647

Channel breakdown

R31

G50

B85

Red31 (12.2%)

Green50 (19.6%)

Blue85 (33.3%)

Hue218.89°

Saturation (HSL)46.55%

Lightness22.75%

Dominant channelBlue

Hex per channelR 1F · G 32 · B 55

Keep nerding

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

#1F3255

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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