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Recognised as Colour

#1F2AFF

  • #1F2AFF
  • Blue
  • Dark
  • Nearest: Blue

#1F2AFF is a blue with RGB values 31, 42, 255 and HSL 237°, 100%, 56%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Blue.

Colour values

#1F2AFF#1F2AFF
HEX#1F2AFF
RGBrgb(31, 42, 255)
RGB (0–1)0.1216, 0.1647, 1
RGB percentages12.2%, 16.5%, 100%
HSLhsl(237.1, 100%, 56.1%)
HSV / HSBhsv(237.1, 87.8%, 100%)
CMYK87.8%, 83.5%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer2,042,623
CSS custom property--colour: #1F2AFF;

Brightness & contrast

Relative luminance0.09167WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.41:1
Contrast with white7.41:1WCAG normal text: AAA
Contrast with black2.83:1WCAG normal text: Fail
Greyscale equivalent#373737
Inverted#E0D500

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0061FFno red cones; affects about 1% of men; ΔE 36.7 from the original
Deuteranopia#0049FCno green cones; the most common form, about 1% of men; ΔE 20.1 from the original
Tritanopia#007299no blue cones; rare, and affects men and women equally; ΔE 109.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.41:1WCAG large text: AAA
Contrast with black, large text2.83:1WCAG large text: Fail

Named colours

Blue · ΔE 12.7Medium blue · ΔE 15Blue violet · ΔE 27.1Dark violet · ΔE 31.8Dark orchid · ΔE 41.9Dark blue · ΔE 43.2
Nearest named CSS colourBlue (#0000FF)ΔE 12.72, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFF41F
Analogous#1F9AFF, #841FFF
Triadic#FF1F2A, #2AFF1F
Split complementary#FF841F, #9AFF1F
Tetradic#FF1F9A, #FFF41F, #1FFF84

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#EBECFF
Lighter +30%#B8BBFF
Lighter +20%#858BFF
Lighter +10%#525AFF
Darker −10%#000CEB
Darker −20%#0009B8
Darker −30%#000785
Darker −40%#000452
More saturated +25%#1F2AFF
Less saturated −25%#3B43E3

Channel breakdown

R31
G42
B255
Red31 (12.2%)
Green42 (16.5%)
Blue255 (100%)
Hue237.05°
Saturation (HSL)100%
Lightness56.08%
Dominant channelBlue
Hex per channelR 1F · G 2A · B FF

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Every value on this page was computed from “1f2aff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.