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Recognised as Colour

#1C4EFF

  • #1C4EFF
  • Blue
  • Dark
  • Nearest: Medium blue

#1C4EFF is a blue with RGB values 28, 78, 255 and HSL 227°, 100%, 55%. It is a dark colour, so white text on it reaches 5.9:1 contrast (AA for normal text). The nearest named colour is Medium blue.

Colour values

#1C4EFF#1C4EFF
HEX#1C4EFF
RGBrgb(28, 78, 255)
RGB (0–1)0.1098, 0.3059, 1
RGB percentages11%, 30.6%, 100%
HSLhsl(226.8, 100%, 55.5%)
HSV / HSBhsv(226.8, 89%, 100%)
CMYK89%, 69.4%, 0%, 0%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,855,231
CSS custom property--colour: #1C4EFF;

Brightness & contrast

Relative luminance0.12916WCAG 2.x, 0 is black and 1 is white
Perceived brightness105.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.86:1
Contrast with white5.86:1WCAG normal text: AA
Contrast with black3.58:1WCAG normal text: Fail
Greyscale equivalent#505050
Inverted#E3B100

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006FFFno red cones; affects about 1% of men; ΔE 25.7 from the original
Deuteranopia#005AFCno green cones; the most common form, about 1% of men; ΔE 10.6 from the original
Tritanopia#0080A1no blue cones; rare, and affects men and women equally; ΔE 94.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.86:1WCAG large text: AAA
Contrast with black, large text3.58:1WCAG large text: AA

Named colours

Medium blue · ΔE 24.1Blue violet · ΔE 24.9Medium slateblue · ΔE 28.7Dark violet · ΔE 32.8Dark orchid · ΔE 33.8Blue · ΔE 34.8
Nearest named CSS colourMedium blue (#0000CD)ΔE 24.15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#FFCD1C
Analogous#1CC0FF, #5B1CFF
Triadic#FF1C4E, #4EFF1C
Split complementary#FF5B1C, #C0FF1C
Tetradic#FF1CC0, #FFCD1C, #1CFF5C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#E8EDFF
Lighter +30%#B5C5FF
Lighter +20%#829EFF
Lighter +10%#4F76FF
Darker −10%#0033E8
Darker −20%#0028B5
Darker −30%#001D82
Darker −40%#00114F
More saturated +25%#1C4EFF
Less saturated −25%#385EE3

Channel breakdown

R28
G78
B255
Red28 (11%)
Green78 (30.6%)
Blue255 (100%)
Hue226.78°
Saturation (HSL)100%
Lightness55.49%
Dominant channelBlue
Hex per channelR 1C · G 4E · B FF

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Every value on this page was computed from “1c4eff” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.