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Recognised as Colour

#012166

  • #012166
  • Blue
  • Dark
  • Nearest: Midnight blue

#012166 is a blue with RGB values 1, 33, 102 and HSL 221°, 98%, 20%. 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

#012166#012166
HEX#012166
RGBrgb(1, 33, 102)
RGB (0–1)0.0039, 0.1294, 0.4
RGB percentages0.4%, 12.9%, 40%
HSLhsl(221, 98.1%, 20.2%)
HSV / HSBhsv(221, 99%, 40%)
CMYK99%, 67.6%, 0%, 60%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer74,086
CSS custom property--colour: #012166;

Brightness & contrast

Relative luminance0.02053WCAG 2.x, 0 is black and 1 is white
Perceived brightness42.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 14.89:1
Contrast with white14.89:1WCAG normal text: AAA
Contrast with black1.41:1WCAG normal text: Fail
Greyscale equivalent#1F1F1F
Inverted#FEDE99

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#002C68no red cones; affects about 1% of men; ΔE 9.3 from the original
Deuteranopia#002365no green cones; the most common form, about 1% of men; ΔE 2.5 from the original
Tritanopia#003440no blue cones; rare, and affects men and women equally; ΔE 44.2 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text14.89:1WCAG large text: AAA
Contrast with black, large text1.41:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.1Dark slateblue · ΔE 16.2Rebecca purple · ΔE 28.6Indigo · ΔE 33.3Navy · ΔE 34.8Slate blue · ΔE 36.5
Nearest named CSS colourMidnight blue (#191970)ΔE 13.07, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#664601
Analogous#015466, #130166
Triadic#660121, #216601
Split complementary#661301, #546601
Tetradic#660154, #664601, #016613

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3675FD
Lighter +30%#0352FD
Lighter +20%#0242CB
Lighter +10%#013199
Darker −10%#011133
Darker −20%#000001
Darker −30%#000000
Darker −40%#000000
More saturated +25%#002167
Less saturated −25%#0E2659

Channel breakdown

R1
G33
B102
Red1 (0.4%)
Green33 (12.9%)
Blue102 (40%)
Hue220.99°
Saturation (HSL)98.06%
Lightness20.2%
Dominant channelBlue
Hex per channelR 01 · G 21 · B 66

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Every value on this page was computed from “hex 012166” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.