Colour

#1F1FDA

#1F1FDA
Blue
Dark
Nearest: Medium blue

#1F1FDA is a blue with RGB values 31, 31, 218 and HSL 240°, 75%, 49%. It is a dark colour, so white text on it reaches 9.3:1 contrast (AAA for normal text). The nearest named colour is Medium blue.

Colour values

#1F1FDA#1F1FDA

HEX#1F1FDA

RGBrgb(31, 31, 218)

RGB (0–1)0.1216, 0.1216, 0.8549

RGB percentages12.2%, 12.2%, 85.5%

HSLhsl(240, 75.1%, 48.8%)

HSV / HSBhsv(240, 85.8%, 85.5%)

CMYK85.8%, 85.8%, 0%, 14.5%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,039,770

CSS custom property--colour: #1F1FDA;

Brightness & contrast

Relative luminance0.06333WCAG 2.x, 0 is black and 1 is white

Perceived brightness79.2 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 9.26:1

Contrast with white9.26:1WCAG normal text: AAA

Contrast with black2.27:1WCAG normal text: Fail

Greyscale equivalent#2D2D2D

Inverted#E0E025

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0051DFno red cones; affects about 1% of men; ΔE 31.1 from the original

Deuteranopia#003DD7no green cones; the most common form, about 1% of men; ΔE 19.5 from the original

Tritanopia#005F82no blue cones; rare, and affects men and women equally; ΔE 97.5 from the original

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

Contrast with white, large text9.26:1WCAG large text: AAA

Contrast with black, large text2.27:1WCAG large text: Fail

Named colours

Medium blue · ΔE 6.9 Blue violet · ΔE 20.8 Blue · ΔE 24.1 Dark violet · ΔE 25.7 Dark blue · ΔE 29.3 Dark orchid · ΔE 33

Nearest named CSS colourMedium blue (#0000CD)ΔE 6.89, clearly different but related

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#DADA1F

Analogous#1F7DDA, #7D1FDA

Triadic#DA1F1F, #1FDA1F

Split complementary#DA7D1F, #7DDA1F

Tetradic#DA1F7D, #DADA1F, #1FDA7D

Tints, shades & saturation

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

Lighter +40%#CDCDF8

Lighter +30%#A0A0F2

Lighter +20%#7474EB

Lighter +10%#4747E5

Darker −10%#1919AD

Darker −20%#121281

Darker −30%#0C0C54

Darker −40%#060627

More saturated +25%#0000F9

Less saturated −25%#3E3EBB

Channel breakdown

R31

G31

B218

Red31 (12.2%)

Green31 (12.2%)

Blue218 (85.5%)

Hue240°

Saturation (HSL)75.1%

Lightness48.82%

Dominant channelBlue

Hex per channelR 1F · G 1F · B DA

Keep nerding

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

#1F1FDA

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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