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Recognised as Colour

#105BC9

  • #105BC9
  • Blue
  • Dark
  • Nearest: Royal blue

#105BC9 is a blue with RGB values 16, 91, 201 and HSL 216°, 85%, 43%. It is a dark colour, so white text on it reaches 6.2:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#105BC9#105BC9
HEX#105BC9
RGBrgb(16, 91, 201)
RGB (0–1)0.0627, 0.3569, 0.7882
RGB percentages6.3%, 35.7%, 78.8%
HSLhsl(215.7, 85.3%, 42.5%)
HSV / HSBhsv(215.7, 92%, 78.8%)
CMYK92%, 54.7%, 0%, 21.2%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,072,073
CSS custom property--colour: #105BC9;

Brightness & contrast

Relative luminance0.11809WCAG 2.x, 0 is black and 1 is white
Perceived brightness97.7 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.25:1
Contrast with white6.25:1WCAG normal text: AA
Contrast with black3.36:1WCAG normal text: Fail
Greyscale equivalent#535353
Inverted#EFA436

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0069CDno red cones; affects about 1% of men; ΔE 10 from the original
Deuteranopia#0059C7no green cones; the most common form, about 1% of men; ΔE 0.9 from the original
Tritanopia#007789no blue cones; rare, and affects men and women equally; ΔE 62.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.25:1WCAG large text: AAA
Contrast with black, large text3.36:1WCAG large text: AA

Named colours

Royal blue · ΔE 8.6Slate blue · ΔE 15.7Dodgerblue · ΔE 22Medium slateblue · ΔE 22.4Dark slateblue · ΔE 23.5Medium purple · ΔE 24.2
Nearest named CSS colourRoyal blue (#4169E1)ΔE 8.57, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C97E10
Analogous#10B8C9, #2110C9
Triadic#C9105B, #5BC910
Split complementary#C92210, #B8C910
Tetradic#C910B8, #C97E10, #10C922

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#ADCBF8
Lighter +30%#7DAEF5
Lighter +20%#4E90F1
Lighter +10%#1F72ED
Darker −10%#0C469A
Darker −20%#08306B
Darker −30%#051B3B
Darker −40%#01050C
More saturated +25%#0058D9
Less saturated −25%#2B60AE

Channel breakdown

R16
G91
B201
Red16 (6.3%)
Green91 (35.7%)
Blue201 (78.8%)
Hue215.68°
Saturation (HSL)85.25%
Lightness42.55%
Dominant channelBlue
Hex per channelR 10 · G 5B · B C9

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Every value on this page was computed from “105bc9” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.