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Colour

#003993

  • #003993
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003993 is a blue with RGB values 0, 57, 147 and HSL 217°, 100%, 29%. It is a dark colour, so white text on it reaches 10.5:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003993#003993
HEX#003993
RGBrgb(0, 57, 147)
RGB (0–1)0, 0.2235, 0.5765
RGB percentages0%, 22.4%, 57.6%
HSLhsl(216.7, 100%, 28.8%)
HSV / HSBhsv(216.7, 100%, 57.6%)
CMYK100%, 61.2%, 0%, 42.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer14,739
CSS custom property--colour: #003993;

Brightness & contrast

Relative luminance0.05033WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.47:1
Contrast with white10.47:1WCAG normal text: AAA
Contrast with black2.01:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FFC66C

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004696no red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#003991no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#005060no blue cones; rare, and affects men and women equally; ΔE 53.4 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.47:1WCAG large text: AAA
Contrast with black, large text2.01:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.8Midnight blue · ΔE 15.1Rebecca purple · ΔE 22.5Slate blue · ΔE 23.5Royal blue · ΔE 24.3Indigo · ΔE 30.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.84, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#935A00
Analogous#008393, #100093
Triadic#930039, #399300
Split complementary#931000, #839300
Tetradic#930083, #935A00, #009310

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#609EFF
Lighter +30%#2D7EFF
Lighter +20%#0061F9
Lighter +10%#004DC6
Darker −10%#002560
Darker −20%#00112D
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003993
Less saturated −25%#123D81

Channel breakdown

R0
G57
B147
Red0 (0%)
Green57 (22.4%)
Blue147 (57.6%)
Hue216.73°
Saturation (HSL)100%
Lightness28.82%
Dominant channelBlue
Hex per channelR 00 · G 39 · B 93

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Every value on this page was computed from “hex 003993” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.