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Recognised as Colour

#1B2FA7

  • #1B2FA7
  • Blue
  • Dark
  • Nearest: Navy

#1B2FA7 is a blue with RGB values 27, 47, 167 and HSL 231°, 72%, 38%. It is a dark colour, so white text on it reaches 10.4:1 contrast (AAA for normal text). The nearest named colour is Navy.

Colour values

#1B2FA7#1B2FA7
HEX#1B2FA7
RGBrgb(27, 47, 167)
RGB (0–1)0.1059, 0.1843, 0.6549
RGB percentages10.6%, 18.4%, 65.5%
HSLhsl(231.4, 72.2%, 38%)
HSV / HSBhsv(231.4, 83.8%, 65.5%)
CMYK83.8%, 71.9%, 0%, 34.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,781,671
CSS custom property--colour: #1B2FA7;

Brightness & contrast

Relative luminance0.05056WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.44:1
Contrast with white10.44:1WCAG normal text: AAA
Contrast with black2.01:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#E4D058

Colour vision & accessibility

Protanopia#0046ABno red cones; affects about 1% of men; ΔE 17.4 from the original
Deuteranopia#0039A5no green cones; the most common form, about 1% of men; ΔE 9.5 from the original
Tritanopia#005168no blue cones; rare, and affects men and women equally; ΔE 68.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.44:1WCAG large text: AAA
Contrast with black, large text2.01:1WCAG large text: Fail

Named colours

Nearest named CSS colourNavy (#000080)ΔE 16.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

Complementary#A7931B
Analogous#1B75A7, #4D1BA7
Triadic#A71B2F, #2FA71B
Split complementary#A74D1B, #75A71B
Tetradic#A71B75, #A7931B, #1BA74D

Tints, shades & saturation

Lighter +40%#9FAAEF
Lighter +30%#7383E8
Lighter +20%#475DE1
Lighter +10%#223BD3
Darker −10%#14237B
Darker −20%#0D164F
Darker −30%#060A23
Darker −40%#000000
More saturated +25%#031EBF
Less saturated −25%#33408F

Channel breakdown

R27
G47
B167
Red27 (10.6%)
Green47 (18.4%)
Blue167 (65.5%)
Hue231.43°
Saturation (HSL)72.16%
Lightness38.04%
Dominant channelBlue
Hex per channelR 1B · G 2F · B A7

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Every value on this page was computed from “1b2fa7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.