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Recognised as Colour

#103C8F

  • #103C8F
  • Blue
  • Dark
  • Nearest: Dark slateblue

#103C8F is a blue with RGB values 16, 60, 143 and HSL 219°, 80%, 31%. It is a dark colour, so white text on it reaches 10.2:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#103C8F#103C8F
HEX#103C8F
RGBrgb(16, 60, 143)
RGB (0–1)0.0627, 0.2353, 0.5608
RGB percentages6.3%, 23.5%, 56.1%
HSLhsl(219.2, 79.9%, 31.2%)
HSV / HSBhsv(219.2, 88.8%, 56.1%)
CMYK88.8%, 58%, 0%, 43.9%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,064,079
CSS custom property--colour: #103C8F;

Brightness & contrast

Relative luminance0.05325WCAG 2.x, 0 is black and 1 is white
Perceived brightness67.2 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 10.17:1
Contrast with white10.17:1WCAG normal text: AAA
Contrast with black2.07:1WCAG normal text: Fail
Greyscale equivalent#393939
Inverted#EFC370

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#004792no red cones; affects about 1% of men; ΔE 8.6 from the original
Deuteranopia#003C8Dno green cones; the most common form, about 1% of men; ΔE 1.9 from the original
Tritanopia#00515Fno blue cones; rare, and affects men and women equally; ΔE 50.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text10.17:1WCAG large text: AAA
Contrast with black, large text2.07:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 10.8Midnight blue · ΔE 17.1Rebecca purple · ΔE 24.3Slate blue · ΔE 25.6Royal blue · ΔE 26.3Medium purple · ΔE 32.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 10.77, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#8F6310
Analogous#107C8F, #23108F
Triadic#8F103C, #3C8F10
Split complementary#8F2410, #7B8F10
Tetradic#8F107C, #8F6310, #108F24

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7BA3F0
Lighter +30%#4D84EB
Lighter +20%#1F64E6
Lighter +10%#154FBD
Darker −10%#0B2961
Darker −20%#061633
Darker −30%#010205
Darker −40%#000000
More saturated +25%#00379F
Less saturated −25%#24427B

Channel breakdown

R16
G60
B143
Red16 (6.3%)
Green60 (23.5%)
Blue143 (56.1%)
Hue219.21°
Saturation (HSL)79.87%
Lightness31.18%
Dominant channelBlue
Hex per channelR 10 · G 3C · B 8F

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Every value on this page was computed from “103c8f” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.