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Recognised as Colour

#1E237C

  • #1E237C
  • Blue
  • Dark
  • Nearest: Midnight blue

#1E237C is a blue with RGB values 30, 35, 124 and HSL 237°, 61%, 30%. It is a dark colour, so white text on it reaches 13.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#1E237C#1E237C
HEX#1E237C
RGBrgb(30, 35, 124)
RGB (0–1)0.1176, 0.1373, 0.4863
RGB percentages11.8%, 13.7%, 48.6%
HSLhsl(236.8, 61%, 30.2%)
HSV / HSBhsv(236.8, 75.8%, 48.6%)
CMYK75.8%, 71.8%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,975,164
CSS custom property--colour: #1E237C;

Brightness & contrast

Relative luminance0.02933WCAG 2.x, 0 is black and 1 is white
Perceived brightness52.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.24:1
Contrast with white13.24:1WCAG normal text: AAA
Contrast with black1.59:1WCAG normal text: Fail
Greyscale equivalent#282828
Inverted#E1DC83

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00347Fno red cones; affects about 1% of men; ΔE 14.3 from the original
Deuteranopia#002B7Ano green cones; the most common form, about 1% of men; ΔE 9.1 from the original
Tritanopia#003B4Cno blue cones; rare, and affects men and women equally; ΔE 54 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.24:1WCAG large text: AAA
Contrast with black, large text1.59:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 4.4Dark slateblue · ΔE 14.7Rebecca purple · ΔE 18.6Indigo · ΔE 21.6Navy · ΔE 23.1Slate blue · ΔE 27.1
Nearest named CSS colourMidnight blue (#191970)ΔE 4.35, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C771E
Analogous#1E527C, #481E7C
Triadic#7C1E23, #237C1E
Split complementary#7C481E, #527C1E
Tetradic#7C1E52, #7C771E, #1E7C48

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#858AE1
Lighter +30%#5C62D7
Lighter +20%#323BCE
Lighter +10%#282FA5
Darker −10%#141753
Darker −20%#0A0C2A
Darker −30%#000001
Darker −40%#000000
More saturated +25%#0B128F
Less saturated −25%#313469

Channel breakdown

R30
G35
B124
Red30 (11.8%)
Green35 (13.7%)
Blue124 (48.6%)
Hue236.81°
Saturation (HSL)61.04%
Lightness30.2%
Dominant channelBlue
Hex per channelR 1E · G 23 · B 7C

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Every value on this page was computed from “1e237c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.