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Recognised as Colour

#0B0F57

  • #0B0F57
  • Blue
  • Dark
  • Nearest: Midnight blue

#0B0F57 is a blue with RGB values 11, 15, 87 and HSL 237°, 78%, 19%. It is a dark colour, so white text on it reaches 17.2:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#0B0F57#0B0F57
HEX#0B0F57
RGBrgb(11, 15, 87)
RGB (0–1)0.0431, 0.0588, 0.3412
RGB percentages4.3%, 5.9%, 34.1%
HSLhsl(236.8, 77.6%, 19.2%)
HSV / HSBhsv(236.8, 87.4%, 34.1%)
CMYK87.4%, 82.8%, 0%, 65.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer724,823
CSS custom property--colour: #0B0F57;

Brightness & contrast

Relative luminance0.01101WCAG 2.x, 0 is black and 1 is white
Perceived brightness32.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 17.21:1
Contrast with white17.21:1WCAG normal text: AAA
Contrast with black1.22:1WCAG normal text: Fail
Greyscale equivalent#131313
Inverted#F4F0A8

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#001F59no red cones; affects about 1% of men; ΔE 13.4 from the original
Deuteranopia#001756no green cones; the most common form, about 1% of men; ΔE 7.6 from the original
Tritanopia#002532no blue cones; rare, and affects men and women equally; ΔE 46.5 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text17.21:1WCAG large text: AAA
Contrast with black, large text1.22:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 9.9Dark slateblue · ΔE 21.1Rebecca purple · ΔE 28.1Indigo · ΔE 28.4Navy · ΔE 29.7Dark blue · ΔE 34.8
Nearest named CSS colourMidnight blue (#191970)ΔE 9.88, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#57530B
Analogous#0B3557, #2D0B57
Triadic#570B0F, #0F570B
Split complementary#572D0B, #35570B
Tetradic#570B35, #57530B, #0B572D

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#464FE8
Lighter +30%#1C26DF
Lighter +20%#161FB2
Lighter +10%#111784
Darker −10%#05072A
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#000562
Less saturated −25%#171A4B

Channel breakdown

R11
G15
B87
Red11 (4.3%)
Green15 (5.9%)
Blue87 (34.1%)
Hue236.84°
Saturation (HSL)77.55%
Lightness19.22%
Dominant channelBlue
Hex per channelR 0B · G 0F · B 57

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Every value on this page was computed from “0b0f57” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.