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Recognised as Colour

#1C3144

  • #1C3144
  • Blue
  • Dark
  • Nearest: Dark slate grey

#1C3144 is a blue with RGB values 28, 49, 68 and HSL 208°, 42%, 19%. It is a dark colour, so white text on it reaches 13.4:1 contrast (AAA for normal text). The nearest named colour is Dark slate grey.

Colour values

#1C3144#1C3144
HEX#1C3144
RGBrgb(28, 49, 68)
RGB (0–1)0.1098, 0.1922, 0.2667
RGB percentages11%, 19.2%, 26.7%
HSLhsl(208.5, 41.7%, 18.8%)
HSV / HSBhsv(208.5, 58.8%, 26.7%)
CMYK58.8%, 27.9%, 0%, 73.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,847,620
CSS custom property--colour: #1C3144;

Brightness & contrast

Relative luminance0.02861WCAG 2.x, 0 is black and 1 is white
Perceived brightness46.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.36:1
Contrast with white13.36:1WCAG normal text: AAA
Contrast with black1.57:1WCAG normal text: Fail
Greyscale equivalent#2E2E2E
Inverted#E3CEBB

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#293145no red cones; affects about 1% of men; ΔE 4.6 from the original
Deuteranopia#242D44no green cones; the most common form, about 1% of men; ΔE 5.4 from the original
Tritanopia#063537no blue cones; rare, and affects men and women equally; ΔE 15 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text13.36:1WCAG large text: AAA
Contrast with black, large text1.57:1WCAG large text: Fail

Named colours

Dark slate grey · ΔE 18.7Black · ΔE 24.3Dim grey · ΔE 28.9Slate grey · ΔE 33.6Light slate grey · ΔE 36.6Gray · ΔE 37.1
Nearest named CSS colourDark slate grey (#2F4F4F)ΔE 18.72, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#442F1C
Analogous#1C4443, #1C1D44
Triadic#441C31, #31441C
Split complementary#441C1D, #44431C
Tetradic#431C44, #442F1C, #1D441C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6A98C2
Lighter +30%#497FB0
Lighter +20%#3A658C
Lighter +10%#2B4B68
Darker −10%#0D1720
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#103250
Less saturated −25%#283038

Channel breakdown

R28
G49
B68
Red28 (11%)
Green49 (19.2%)
Blue68 (26.7%)
Hue208.5°
Saturation (HSL)41.67%
Lightness18.82%
Dominant channelBlue
Hex per channelR 1C · G 31 · B 44

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Every value on this page was computed from “1c3144” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.