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Colour

#003C71

  • #003C71
  • Blue
  • Dark
  • Nearest: Dark slateblue

#003C71 is a blue with RGB values 0, 60, 113 and HSL 208°, 100%, 22%. It is a dark colour, so white text on it reaches 11.1:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#003C71#003C71
HEX#003C71
RGBrgb(0, 60, 113)
RGB (0–1)0, 0.2353, 0.4431
RGB percentages0%, 23.5%, 44.3%
HSLhsl(208.1, 100%, 22.2%)
HSV / HSBhsv(208.1, 100%, 44.3%)
CMYK100%, 46.9%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer15,473
CSS custom property--colour: #003C71;

Brightness & contrast

Relative luminance0.04424WCAG 2.x, 0 is black and 1 is white
Perceived brightness59.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.14:1
Contrast with white11.14:1WCAG normal text: AAA
Contrast with black1.88:1WCAG normal text: Fail
Greyscale equivalent#333333
Inverted#FFC38E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#1F4073no red cones; affects about 1% of men; ΔE 3.6 from the original
Deuteranopia#043770no green cones; the most common form, about 1% of men; ΔE 4.2 from the original
Tritanopia#004951no blue cones; rare, and affects men and women equally; ΔE 33.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.14:1WCAG large text: AAA
Contrast with black, large text1.88:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.6Steel blue · ΔE 29.2Midnight blue · ΔE 31.4Dark slate grey · ΔE 36.4Slate grey · ΔE 38Cornflower blue · ΔE 39.7
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.57, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#713500
Analogous#00716E, #000371
Triadic#71003C, #3C7100
Split complementary#710003, #716E00
Tetradic#6E0071, #713500, #037100

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3EA4FF
Lighter +30%#0B8DFF
Lighter +20%#0072D7
Lighter +10%#0057A4
Darker −10%#00213E
Darker −20%#00060B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#003C71
Less saturated −25%#0E3B63

Channel breakdown

R0
G60
B113
Red0 (0%)
Green60 (23.5%)
Blue113 (44.3%)
Hue208.14°
Saturation (HSL)100%
Lightness22.16%
Dominant channelBlue
Hex per channelR 00 · G 3C · B 71

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Every value on this page was computed from “003c71” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.