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Recognised as Colour

#111F55

  • #111F55
  • Blue
  • Dark
  • Nearest: Dark slateblue

#111F55 is a blue with RGB values 17, 31, 85 and HSL 228°, 67%, 20%. It is a dark colour, so white text on it reaches 15.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#111F55#111F55
HEX#111F55
RGBrgb(17, 31, 85)
RGB (0–1)0.0667, 0.1216, 0.3333
RGB percentages6.7%, 12.2%, 33.3%
HSLhsl(227.6, 66.7%, 20%)
HSV / HSBhsv(227.6, 80%, 33.3%)
CMYK80%, 63.5%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,122,133
CSS custom property--colour: #111F55;

Brightness & contrast

Relative luminance0.01755WCAG 2.x, 0 is black and 1 is white
Perceived brightness38.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 15.54:1
Contrast with white15.54:1WCAG normal text: AAA
Contrast with black1.35:1WCAG normal text: Fail
Greyscale equivalent#202020
Inverted#EEE0AA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002757no red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#002154no green cones; the most common form, about 1% of men; ΔE 4 from the original
Tritanopia#002D36no blue cones; rare, and affects men and women equally; ΔE 36.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text15.54:1WCAG large text: AAA
Contrast with black, large text1.35:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 20.9Midnight blue · ΔE 21.9Rebecca purple · ΔE 35.2Black · ΔE 40.6Indigo · ΔE 40.9Steel blue · ΔE 43.3
Nearest named CSS colourDark slateblue (#483D8B)ΔE 20.92, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#554711
Analogous#114155, #251155
Triadic#55111F, #1F5511
Split complementary#552511, #415511
Tetradic#551141, #554711, #115525

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5571DD
Lighter +30%#2A4ED5
Lighter +20%#223EAA
Lighter +10%#192F80
Darker −10%#09102B
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#041862
Less saturated −25%#1E2748

Channel breakdown

R17
G31
B85
Red17 (6.7%)
Green31 (12.2%)
Blue85 (33.3%)
Hue227.65°
Saturation (HSL)66.67%
Lightness20%
Dominant channelBlue
Hex per channelR 11 · G 1F · B 55

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Every value on this page was computed from “111f55” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.