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Colour

#1755B6

  • #1755B6
  • Blue
  • Dark
  • Nearest: Royal blue

#1755B6 is a blue with RGB values 23, 85, 182 and HSL 217°, 78%, 40%. It is a dark colour, so white text on it reaches 7:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#1755B6#1755B6
HEX#1755B6
RGBrgb(23, 85, 182)
RGB (0–1)0.0902, 0.3333, 0.7137
RGB percentages9%, 33.3%, 71.4%
HSLhsl(216.6, 77.6%, 40.2%)
HSV / HSBhsv(216.6, 87.4%, 71.4%)
CMYK87.4%, 53.3%, 0%, 28.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,529,270
CSS custom property--colour: #1755B6;

Brightness & contrast

Relative luminance0.10057WCAG 2.x, 0 is black and 1 is white
Perceived brightness90.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.97:1
Contrast with white6.97:1WCAG normal text: AA
Contrast with black3.01:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#E8AA49

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0461B9no red cones; affects about 1% of men; ΔE 9.1 from the original
Deuteranopia#0053B4no green cones; the most common form, about 1% of men; ΔE 1.3 from the original
Tritanopia#006D7Dno blue cones; rare, and affects men and women equally; ΔE 56 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.97:1WCAG large text: AAA
Contrast with black, large text3.01:1WCAG large text: AA

Named colours

Royal blue · ΔE 15.2Dark slateblue · ΔE 17.8Slate blue · ΔE 19Dodgerblue · ΔE 24.1Medium purple · ΔE 25.7Rebecca purple · ΔE 26.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 15.22, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B67817
Analogous#17A5B6, #2817B6
Triadic#B61755, #55B617
Split complementary#B62817, #A5B617
Tetradic#B617A5, #B67817, #17B628

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A5C4F4
Lighter +30%#78A6EE
Lighter +20%#4B88E8
Lighter +10%#1D6AE3
Darker −10%#114089
Darker −20%#0C2B5B
Darker −30%#06162E
Darker −40%#000001
More saturated +25%#0050CD
Less saturated −25%#315B9C

Channel breakdown

R23
G85
B182
Red23 (9%)
Green85 (33.3%)
Blue182 (71.4%)
Hue216.6°
Saturation (HSL)77.56%
Lightness40.2%
Dominant channelBlue
Hex per channelR 17 · G 55 · B B6

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Every value on this page was computed from “1755b6” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.