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Recognised as Colour

#175ED5

  • #175ED5
  • Blue
  • Dark
  • Nearest: Royal blue

#175ED5 is a blue with RGB values 23, 94, 213 and HSL 218°, 81%, 46%. It is a dark colour, so white text on it reaches 5.8:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#175ED5#175ED5
HEX#175ED5
RGBrgb(23, 94, 213)
RGB (0–1)0.0902, 0.3686, 0.8353
RGB percentages9%, 36.9%, 83.5%
HSLhsl(217.6, 80.5%, 46.3%)
HSV / HSBhsv(217.6, 89.2%, 83.5%)
CMYK89.2%, 55.9%, 0%, 16.5%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,531,605
CSS custom property--colour: #175ED5;

Brightness & contrast

Relative luminance0.12992WCAG 2.x, 0 is black and 1 is white
Perceived brightness102.6 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 5.84:1
Contrast with white5.84:1WCAG normal text: AA
Contrast with black3.6:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#E8A12A

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#006ED9no red cones; affects about 1% of men; ΔE 11.7 from the original
Deuteranopia#005DD3no green cones; the most common form, about 1% of men; ΔE 1.2 from the original
Tritanopia#007C90no blue cones; rare, and affects men and women equally; ΔE 66.7 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text5.84:1WCAG large text: AAA
Contrast with black, large text3.6:1WCAG large text: AA

Named colours

Royal blue · ΔE 5.5Slate blue · ΔE 14.5Medium slateblue · ΔE 18.7Dodgerblue · ΔE 22.6Medium purple · ΔE 23.8Dark slateblue · ΔE 27.4
Nearest named CSS colourRoyal blue (#4169E1)ΔE 5.46, clearly different but related
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D58E17
Analogous#17BDD5, #2F17D5
Triadic#D5175E, #5ED517
Split complementary#D52F17, #BDD517
Tetradic#D517BD, #D58E17, #17D52F

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C0D5F8
Lighter +30%#92B6F3
Lighter +20%#6498EE
Lighter +10%#3679E9
Darker −10%#124AA7
Darker −20%#0D3579
Darker −30%#08214B
Darker −40%#030D1D
More saturated +25%#0058EC
Less saturated −25%#3565B7

Channel breakdown

R23
G94
B213
Red23 (9%)
Green94 (36.9%)
Blue213 (83.5%)
Hue217.58°
Saturation (HSL)80.51%
Lightness46.27%
Dominant channelBlue
Hex per channelR 17 · G 5E · B D5

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Every value on this page was computed from “175ed5” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.