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Recognised as Colour

#0A0043

  • #0A0043
  • Blue
  • Dark
  • Nearest: Midnight blue

#0A0043 is a blue with RGB values 10, 0, 67 and HSL 249°, 100%, 13%. It is a dark colour, so white text on it reaches 19.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#0A0043#0A0043
HEX#0A0043
RGBrgb(10, 0, 67)
RGB (0–1)0.0392, 0, 0.2627
RGB percentages3.9%, 0%, 26.3%
HSLhsl(249, 100%, 13.1%)
HSV / HSBhsv(249, 100%, 26.3%)
CMYK85.1%, 100%, 0%, 73.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer655,427
CSS custom property--colour: #0A0043;

Brightness & contrast

Relative luminance0.0047WCAG 2.x, 0 is black and 1 is white
Perceived brightness23.3 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 19.2:1
Contrast with white19.2:1WCAG normal text: AAA
Contrast with black1.09:1WCAG normal text: Fail
Greyscale equivalent#070707
Inverted#F5FFBC

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001245no red cones; affects about 1% of men; ΔE 11.8 from the original
Deuteranopia#000C42no green cones; the most common form, about 1% of men; ΔE 8.9 from the original
Tritanopia#001623no blue cones; rare, and affects men and women equally; ΔE 40.3 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text19.2:1WCAG large text: AAA
Contrast with black, large text1.09:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 16.8Dark slateblue · ΔE 26.9Indigo · ΔE 33Rebecca purple · ΔE 33.9Navy · ΔE 34.5Dark blue · ΔE 39.7
Nearest named CSS colourMidnight blue (#191970)ΔE 16.82, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#394300
Analogous#001743, #2C0043
Triadic#430A00, #00430A
Split complementary#432C00, #174300
Tetradic#430018, #394300, #00432C

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#3410FF
Lighter +30%#2100DC
Lighter +20%#1900A9
Lighter +10%#120076
Darker −10%#020010
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0A0043
Less saturated −25%#10083B

Channel breakdown

R10
G0
B67
Red10 (3.9%)
Green0 (0%)
Blue67 (26.3%)
Hue248.96°
Saturation (HSL)100%
Lightness13.14%
Dominant channelBlue
Hex per channelR 0A · G 00 · B 43

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Every value on this page was computed from “0a0043” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.