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Recognised as Colour

#002971

  • #002971
  • Blue
  • Dark
  • Nearest: Midnight blue

#002971 is a blue with RGB values 0, 41, 113 and HSL 218°, 100%, 22%. It is a dark colour, so white text on it reaches 13.5:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#002971#002971
HEX#002971
RGBrgb(0, 41, 113)
RGB (0–1)0, 0.1608, 0.4431
RGB percentages0%, 16.1%, 44.3%
HSLhsl(218.2, 100%, 22.2%)
HSV / HSBhsv(218.2, 100%, 44.3%)
CMYK100%, 63.7%, 0%, 55.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer10,609
CSS custom property--colour: #002971;

Brightness & contrast

Relative luminance0.02778WCAG 2.x, 0 is black and 1 is white
Perceived brightness49.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 13.5:1
Contrast with white13.5:1WCAG normal text: AAA
Contrast with black1.56:1WCAG normal text: Fail
Greyscale equivalent#252525
Inverted#FFD68E

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#003473no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#002A70no green cones; the most common form, about 1% of men; ΔE 1.5 from the original
Tritanopia#003C48no blue cones; rare, and affects men and women equally; ΔE 45.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text13.5:1WCAG large text: AAA
Contrast with black, large text1.56:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.8Dark slateblue · ΔE 13.9Rebecca purple · ΔE 27.5Indigo · ΔE 33.7Slate blue · ΔE 33.7Navy · ΔE 35.2
Nearest named CSS colourMidnight blue (#191970)ΔE 13.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#714800
Analogous#006171, #100071
Triadic#710029, #297100
Split complementary#710F00, #627100
Tetradic#710061, #714800, #007110

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3E84FF
Lighter +30%#0B64FF
Lighter +20%#004ED7
Lighter +10%#003CA4
Darker −10%#00163E
Darker −20%#00040B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002971
Less saturated −25%#0E2D63

Channel breakdown

R0
G41
B113
Red0 (0%)
Green41 (16.1%)
Blue113 (44.3%)
Hue218.23°
Saturation (HSL)100%
Lightness22.16%
Dominant channelBlue
Hex per channelR 00 · G 29 · B 71

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Every value on this page was computed from “hex 002971” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.