Colour

#1F27FF

#1F27FF
Blue
Dark
Nearest: Blue

#1F27FF is a blue with RGB values 31, 39, 255 and HSL 238°, 100%, 56%. It is a dark colour, so white text on it reaches 7.5:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#1F27FF#1F27FF

HEX#1F27FF

RGBrgb(31, 39, 255)

RGB (0–1)0.1216, 0.1529, 1

RGB percentages12.2%, 15.3%, 100%

HSLhsl(237.9, 100%, 56.1%)

HSV / HSBhsv(237.9, 87.8%, 100%)

CMYK87.8%, 84.7%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile

24-bit integer2,041,855

CSS custom property--colour: #1F27FF;

Brightness & contrast

Relative luminance0.08962WCAG 2.x, 0 is black and 1 is white

Perceived brightness92.7 of 255ITU-R BT.601 weighting

Light or darkDark

Best text colour on this backgroundWhitecontrast 7.52:1

Contrast with white7.52:1WCAG normal text: AAA

Contrast with black2.79:1WCAG normal text: Fail

Greyscale equivalent#353535

Inverted#E0D800

Colour vision & accessibility

Normal vision Protanopia Deuteranopia Tritanopia

Protanopia#0060FFno red cones; affects about 1% of men; ΔE 37.3 from the original

Deuteranopia#0048FCno green cones; the most common form, about 1% of men; ΔE 20.8 from the original

Tritanopia#007199no blue cones; rare, and affects men and women equally; ΔE 110 from the original

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

Contrast with white, large text7.52:1WCAG large text: AAA

Contrast with black, large text2.79:1WCAG large text: Fail

Named colours

Blue · ΔE 11.3 Medium blue · ΔE 15.4 Blue violet · ΔE 27.8 Dark violet · ΔE 32.2 Dark orchid · ΔE 42.7 Dark blue · ΔE 44.1

Nearest named CSS colourBlue (#0000FF)ΔE 11.32, a distinctly different colour

Hue familyblue

CSS keyword usableNo exact keyword

Colour harmonies

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

Complementary#FFF71F

Analogous#1F97FF, #871FFF

Triadic#FF1F27, #27FF1F

Split complementary#FF871F, #97FF1F

Tetradic#FF1F97, #FFF71F, #1FFF87

Tints, shades & saturation

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

Lighter +40%#EBECFF

Lighter +30%#B8BBFF

Lighter +20%#8589FF

Lighter +10%#5258FF

Darker −10%#0008EB

Darker −20%#0007B8

Darker −30%#000585

Darker −40%#000352

More saturated +25%#1F27FF

Less saturated −25%#3B41E3

Channel breakdown

R31

G39

B255

Red31 (12.2%)

Green39 (15.3%)

Blue255 (100%)

Hue237.86°

Saturation (HSL)100%

Lightness56.08%

Dominant channelBlue

Hex per channelR 1F · G 27 · B FF

Keep nerding

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#1F27FF

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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