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Recognised as Colour

#001878

  • #001878
  • Blue
  • Dark
  • Nearest: Midnight blue

#001878 is a blue with RGB values 0, 24, 120 and HSL 228°, 100%, 24%. It is a dark colour, so white text on it reaches 15:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001878#001878
HEX#001878
RGBrgb(0, 24, 120)
RGB (0–1)0, 0.0941, 0.4706
RGB percentages0%, 9.4%, 47.1%
HSLhsl(228, 100%, 23.5%)
HSV / HSBhsv(228, 100%, 47.1%)
CMYK100%, 80%, 0%, 52.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer6,264
CSS custom property--colour: #001878;

Brightness & contrast

Relative luminance0.02009WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.98:1
Contrast with white14.98:1WCAG normal text: AAA
Contrast with black1.4:1WCAG normal text: Fail
Greyscale equivalent#1A1A1A
Inverted#FFE787

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D7Bno red cones; affects about 1% of men; ΔE 16.2 from the original
Deuteranopia#002176no green cones; the most common form, about 1% of men; ΔE 8.3 from the original
Tritanopia#003547no blue cones; rare, and affects men and women equally; ΔE 58.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.98:1WCAG large text: AAA
Contrast with black, large text1.4:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 6.1Navy · ΔE 16.8Indigo · ΔE 18.7Rebecca purple · ΔE 21.2Dark blue · ΔE 21.4Dark slateblue · ΔE 21.6
Nearest named CSS colourMidnight blue (#191970)ΔE 6.1, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#786000
Analogous#005478, #240078
Triadic#780018, #187800
Split complementary#782400, #547800
Tetradic#780054, #786000, #007824

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#456AFF
Lighter +30%#1241FF
Lighter +20%#002CDE
Lighter +10%#0022AB
Darker −10%#000E45
Darker −20%#000412
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001878
Less saturated −25%#0F2169

Channel breakdown

R0
G24
B120
Red0 (0%)
Green24 (9.4%)
Blue120 (47.1%)
Hue228°
Saturation (HSL)100%
Lightness23.53%
Dominant channelBlue
Hex per channelR 00 · G 18 · B 78

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Every value on this page was computed from “hex 001878” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.