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Colour

#1C4D8E

  • #1C4D8E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1C4D8E is a blue with RGB values 28, 77, 142 and HSL 214°, 67%, 33%. It is a dark colour, so white text on it reaches 8.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1C4D8E#1C4D8E
HEX#1C4D8E
RGBrgb(28, 77, 142)
RGB (0–1)0.1098, 0.302, 0.5569
RGB percentages11%, 30.2%, 55.7%
HSLhsl(214.2, 67.1%, 33.3%)
HSV / HSBhsv(214.2, 80.3%, 55.7%)
CMYK80.3%, 45.8%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,854,862
CSS custom property--colour: #1C4D8E;

Brightness & contrast

Relative luminance0.07508WCAG 2.x, 0 is black and 1 is white
Perceived brightness77.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.39:1
Contrast with white8.39:1WCAG normal text: AAA
Contrast with black2.5:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#E3B271

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#2B5390no red cones; affects about 1% of men; ΔE 3.9 from the original
Deuteranopia#13498Dno green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#005C66no blue cones; rare, and affects men and women equally; ΔE 39.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text8.39:1WCAG large text: AAA
Contrast with black, large text2.5:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 17.9Steel blue · ΔE 24.6Cornflower blue · ΔE 30.3Midnight blue · ΔE 30.3Royal blue · ΔE 33.9Slate blue · ΔE 34.8
Nearest named CSS colourDark slateblue (#483D8B)ΔE 17.91, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E5D1C
Analogous#1C868E, #241C8E
Triadic#8E1C4D, #4D8E1C
Split complementary#8E241C, #868E1C
Tetradic#8E1C86, #8E5D1C, #1C8E24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8DB5E9
Lighter +30%#6399E0
Lighter +20%#387DD8
Lighter +10%#2464B9
Darker −10%#143663
Darker −20%#0B1F39
Darker −30%#03080E
Darker −40%#000000
More saturated +25%#074AA3
Less saturated −25%#315079

Channel breakdown

R28
G77
B142
Red28 (11%)
Green77 (30.2%)
Blue142 (55.7%)
Hue214.21°
Saturation (HSL)67.06%
Lightness33.33%
Dominant channelBlue
Hex per channelR 1C · G 4D · B 8E

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Every value on this page was computed from “1c4d8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.