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Recognised as Colour

#1E52AB

  • #1E52AB
  • Blue
  • Dark
  • Nearest: Dark slateblue

#1E52AB is a blue with RGB values 30, 82, 171 and HSL 218°, 70%, 39%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#1E52AB#1E52AB
HEX#1E52AB
RGBrgb(30, 82, 171)
RGB (0–1)0.1176, 0.3216, 0.6706
RGB percentages11.8%, 32.2%, 67.1%
HSLhsl(217.9, 70.1%, 39.4%)
HSV / HSBhsv(217.9, 82.5%, 67.1%)
CMYK82.5%, 52%, 0%, 32.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,987,243
CSS custom property--colour: #1E52AB;

Brightness & contrast

Relative luminance0.09251WCAG 2.x, 0 is black and 1 is white
Perceived brightness86.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.37:1
Contrast with white7.37:1WCAG normal text: AAA
Contrast with black2.85:1WCAG normal text: Fail
Greyscale equivalent#4D4D4D
Inverted#E1AD54

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#155CAEno red cones; affects about 1% of men; ΔE 7.4 from the original
Deuteranopia#0050A9no green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#006876no blue cones; rare, and affects men and women equally; ΔE 52.6 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.37:1WCAG large text: AAA
Contrast with black, large text2.85:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 15Royal blue · ΔE 19.6Slate blue · ΔE 21.8Midnight blue · ΔE 25.6Dodgerblue · ΔE 26.3Cornflower blue · ΔE 26.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 15, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#AB771E
Analogous#1E99AB, #311EAB
Triadic#AB1E52, #52AB1E
Split complementary#AB301E, #99AB1E
Tetradic#AB1E99, #AB771E, #1EAB30

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A6C1EF
Lighter +30%#7AA3E8
Lighter +20%#4F84E0
Lighter +10%#2667D6
Darker −10%#163D80
Darker −20%#0F2854
Darker −30%#071429
Darker −40%#000000
More saturated +25%#054BC4
Less saturated −25%#375992

Channel breakdown

R30
G82
B171
Red30 (11.8%)
Green82 (32.2%)
Blue171 (67.1%)
Hue217.87°
Saturation (HSL)70.15%
Lightness39.41%
Dominant channelBlue
Hex per channelR 1E · G 52 · B AB

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Every value on this page was computed from “1e52ab” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.