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Recognised as Colour

#0A0A47

  • #0A0A47
  • Blue
  • Dark
  • Nearest: Midnight blue

#0A0A47 is a blue with RGB values 10, 10, 71 and HSL 240°, 75%, 16%. It is a dark colour, so white text on it reaches 18.3:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#0A0A47#0A0A47
HEX#0A0A47
RGBrgb(10, 10, 71)
RGB (0–1)0.0392, 0.0392, 0.2784
RGB percentages3.9%, 3.9%, 27.8%
HSLhsl(240, 75.3%, 15.9%)
HSV / HSBhsv(240, 85.9%, 27.8%)
CMYK85.9%, 85.9%, 0%, 72.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer657,991
CSS custom property--colour: #0A0A47;

Brightness & contrast

Relative luminance0.00737WCAG 2.x, 0 is black and 1 is white
Perceived brightness25.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.3:1
Contrast with white18.3:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#0E0E0E
Inverted#F5F5B8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001849no red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#001246no green cones; the most common form, about 1% of men; ΔE 7.5 from the original
Tritanopia#001C28no blue cones; rare, and affects men and women equally; ΔE 39.4 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.3:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 17.2Dark slateblue · ΔE 24.7Rebecca purple · ΔE 33.8Indigo · ΔE 34.8Navy · ΔE 36.7Purple · ΔE 41.8
Nearest named CSS colourMidnight blue (#191970)ΔE 17.23, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#47470A
Analogous#0A2947, #290A47
Triadic#470A0A, #0A470A
Split complementary#47290A, #29470A
Tetradic#470A29, #47470A, #0A4729

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3A3AE3
Lighter +30%#1D1DCD
Lighter +20%#1717A0
Lighter +10%#101074
Darker −10%#04041A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000051
Less saturated −25%#14143D

Channel breakdown

R10
G10
B71
Red10 (3.9%)
Green10 (3.9%)
Blue71 (27.8%)
Hue240°
Saturation (HSL)75.31%
Lightness15.88%
Dominant channelBlue
Hex per channelR 0A · G 0A · B 47

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Every value on this page was computed from “0a0a47” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.