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Recognised as Colour

#033C87

  • #033C87
  • Blue
  • Dark
  • Nearest: Dark slateblue

#033C87 is a blue with RGB values 3, 60, 135 and HSL 214°, 96%, 27%. 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

#033C87#033C87
HEX#033C87
RGBrgb(3, 60, 135)
RGB (0–1)0.0118, 0.2353, 0.5294
RGB percentages1.2%, 23.5%, 52.9%
HSLhsl(214.1, 95.7%, 27.1%)
HSV / HSBhsv(214.1, 97.8%, 52.9%)
CMYK97.8%, 55.6%, 0%, 47.1%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer212,103
CSS custom property--colour: #033C87;

Brightness & contrast

Relative luminance0.05WCAG 2.x, 0 is black and 1 is white
Perceived brightness64.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.5:1
Contrast with white10.5:1WCAG normal text: AAA
Contrast with black2:1WCAG normal text: Fail
Greyscale equivalent#353535
Inverted#FCC378

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00458Ano red cones; affects about 1% of men; ΔE 6.6 from the original
Deuteranopia#003A86no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#004F5Bno blue cones; rare, and affects men and women equally; ΔE 45.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.5:1WCAG large text: AAA
Contrast with black, large text2:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 12.4Midnight blue · ΔE 20.1Rebecca purple · ΔE 28.4Slate blue · ΔE 30.2Royal blue · ΔE 30.4Steel blue · ΔE 35.1
Nearest named CSS colourDark slateblue (#483D8B)ΔE 12.41, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#874E03
Analogous#037E87, #0C0387
Triadic#87033C, #3C8703
Split complementary#870C03, #7E8703
Tetradic#87037E, #874E03, #03870C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#5BA0FB
Lighter +30%#2983FA
Lighter +20%#0568EB
Lighter +10%#0452B9
Darker −10%#022655
Darker −20%#011023
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003C8A
Less saturated −25%#143E76

Channel breakdown

R3
G60
B135
Red3 (1.2%)
Green60 (23.5%)
Blue135 (52.9%)
Hue214.09°
Saturation (HSL)95.65%
Lightness27.06%
Dominant channelBlue
Hex per channelR 03 · G 3C · B 87

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Every value on this page was computed from “033c87” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.