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Recognised as Colour

#001B74

  • #001B74
  • Blue
  • Dark
  • Nearest: Midnight blue

#001B74 is a blue with RGB values 0, 27, 116 and HSL 226°, 100%, 23%. It is a dark colour, so white text on it reaches 14.9:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#001B74#001B74
HEX#001B74
RGBrgb(0, 27, 116)
RGB (0–1)0, 0.1059, 0.4549
RGB percentages0%, 10.6%, 45.5%
HSLhsl(226, 100%, 22.7%)
HSV / HSBhsv(226, 100%, 45.5%)
CMYK100%, 76.7%, 0%, 54.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer7,028
CSS custom property--colour: #001B74;

Brightness & contrast

Relative luminance0.02045WCAG 2.x, 0 is black and 1 is white
Perceived brightness44.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.9:1
Contrast with white14.9:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#1C1C1C
Inverted#FFE48B

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002D77no red cones; affects about 1% of men; ΔE 14.2 from the original
Deuteranopia#002272no green cones; the most common form, about 1% of men; ΔE 7 from the original
Tritanopia#003546no blue cones; rare, and affects men and women equally; ΔE 54.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.9:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 3.2Dark slateblue · ΔE 18.8Navy · ΔE 21.3Indigo · ΔE 21.9Rebecca purple · ΔE 21.9Dark blue · ΔE 25.9
Nearest named CSS colourMidnight blue (#191970)ΔE 3.18, a close match
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#745900
Analogous#005574, #1F0074
Triadic#74001B, #1B7400
Split complementary#741F00, #557400
Tetradic#740055, #745900, #00741F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#416DFF
Lighter +30%#0E46FF
Lighter +20%#0033DA
Lighter +10%#0027A7
Darker −10%#000F41
Darker −20%#00030E
Darker −30%#000000
Darker −40%#000000
More saturated +25%#001B74
Less saturated −25%#0E2366

Channel breakdown

R0
G27
B116
Red0 (0%)
Green27 (10.6%)
Blue116 (45.5%)
Hue226.03°
Saturation (HSL)100%
Lightness22.75%
Dominant channelBlue
Hex per channelR 00 · G 1B · B 74

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Every value on this page was computed from “001b74” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.