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Recognised as Colour

#0B0255

  • #0B0255
  • Blue
  • Dark
  • Nearest: Midnight blue

#0B0255 is a blue with RGB values 11, 2, 85 and HSL 247°, 95%, 17%. It is a dark colour, so white text on it reaches 18.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#0B0255#0B0255
HEX#0B0255
RGBrgb(11, 2, 85)
RGB (0–1)0.0431, 0.0078, 0.3333
RGB percentages4.3%, 0.8%, 33.3%
HSLhsl(246.5, 95.4%, 17.1%)
HSV / HSBhsv(246.5, 97.6%, 33.3%)
CMYK87.1%, 97.6%, 0%, 66.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer721,493
CSS custom property--colour: #0B0255;

Brightness & contrast

Relative luminance0.0077WCAG 2.x, 0 is black and 1 is white
Perceived brightness29.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 18.2:1
Contrast with white18.2:1WCAG normal text: AAA
Contrast with black1.15:1WCAG normal text: Fail
Greyscale equivalent#0A0A0A
Inverted#F4FDAA

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001957no red cones; affects about 1% of men; ΔE 16.9 from the original
Deuteranopia#001154no green cones; the most common form, about 1% of men; ΔE 11.4 from the original
Tritanopia#001F2Fno blue cones; rare, and affects men and women equally; ΔE 50.6 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text18.2:1WCAG large text: AAA
Contrast with black, large text1.15:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.8Indigo · ΔE 23.1Navy · ΔE 23.4Dark slateblue · ΔE 25.6Rebecca purple · ΔE 27.3Dark blue · ΔE 28.6
Nearest named CSS colourMidnight blue (#191970)ΔE 9.8, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4C5502
Analogous#022355, #350255
Triadic#550B02, #02550B
Split complementary#553502, #235502
Tetradic#550222, #4C5502, #025535

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#4029FA
Lighter +30%#1E06EA
Lighter +20%#1804B9
Lighter +10%#110387
Darker −10%#050123
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#090057
Less saturated −25%#140D4A

Channel breakdown

R11
G2
B85
Red11 (4.3%)
Green2 (0.8%)
Blue85 (33.3%)
Hue246.51°
Saturation (HSL)95.4%
Lightness17.06%
Dominant channelBlue
Hex per channelR 0B · G 02 · B 55

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Every value on this page was computed from “0b0255” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.