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Recognised as Colour

#0F3F8E

  • #0F3F8E
  • Blue
  • Dark
  • Nearest: Dark slateblue

#0F3F8E is a blue with RGB values 15, 63, 142 and HSL 217°, 81%, 31%. It is a dark colour, so white text on it reaches 9.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#0F3F8E#0F3F8E
HEX#0F3F8E
RGBrgb(15, 63, 142)
RGB (0–1)0.0588, 0.2471, 0.5569
RGB percentages5.9%, 24.7%, 55.7%
HSLhsl(217.3, 80.9%, 30.8%)
HSV / HSBhsv(217.3, 89.4%, 55.7%)
CMYK89.4%, 55.6%, 0%, 44.3%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer999,310
CSS custom property--colour: #0F3F8E;

Brightness & contrast

Relative luminance0.0561WCAG 2.x, 0 is black and 1 is white
Perceived brightness68.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.9:1
Contrast with white9.9:1WCAG normal text: AAA
Contrast with black2.12:1WCAG normal text: Fail
Greyscale equivalent#3A3A3A
Inverted#F0C071

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004991no red cones; affects about 1% of men; ΔE 7.7 from the original
Deuteranopia#003E8Cno green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#005360no blue cones; rare, and affects men and women equally; ΔE 47.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text9.9:1WCAG large text: AAA
Contrast with black, large text2.12:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 11.3Midnight blue · ΔE 19.6Rebecca purple · ΔE 26.5Slate blue · ΔE 27.5Royal blue · ΔE 27.7Medium purple · ΔE 33.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 11.3, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8E5E0F
Analogous#0F7F8E, #1E0F8E
Triadic#8E0F3F, #3F8E0F
Split complementary#8E1E0F, #7F8E0F
Tetradic#8E0F7F, #8E5E0F, #0F8E1E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#78A6F1
Lighter +30%#4A87EC
Lighter +20%#1C69E7
Lighter +10%#1453BC
Darker −10%#0A2B60
Darker −20%#051632
Darker −30%#000204
Darker −40%#000000
More saturated +25%#003B9D
Less saturated −25%#23447A

Channel breakdown

R15
G63
B142
Red15 (5.9%)
Green63 (24.7%)
Blue142 (55.7%)
Hue217.32°
Saturation (HSL)80.89%
Lightness30.78%
Dominant channelBlue
Hex per channelR 0F · G 3F · B 8E

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Every value on this page was computed from “0f3f8e” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.