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Recognised as Colour

#175FC7

  • #175FC7
  • Blue
  • Dark
  • Nearest: Royal blue

#175FC7 is a blue with RGB values 23, 95, 199 and HSL 215°, 79%, 44%. It is a dark colour, so white text on it reaches 6:1 contrast (AA for normal text). The nearest named colour is Royal blue.

Colour values

#175FC7#175FC7
HEX#175FC7
RGBrgb(23, 95, 199)
RGB (0–1)0.0902, 0.3725, 0.7804
RGB percentages9%, 37.3%, 78%
HSLhsl(215.5, 79.3%, 43.5%)
HSV / HSBhsv(215.5, 88.4%, 78%)
CMYK88.4%, 52.3%, 0%, 22%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,531,847
CSS custom property--colour: #175FC7;

Brightness & contrast

Relative luminance0.1249WCAG 2.x, 0 is black and 1 is white
Perceived brightness99.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6:1
Contrast with white6:1WCAG normal text: AA
Contrast with black3.5:1WCAG normal text: Fail
Greyscale equivalent#575757
Inverted#E8A038

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0F6BCBno red cones; affects about 1% of men; ΔE 8.3 from the original
Deuteranopia#005CC5no green cones; the most common form, about 1% of men; ΔE 1.6 from the original
Tritanopia#00798Ano blue cones; rare, and affects men and women equally; ΔE 59.1 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6:1WCAG large text: AAA
Contrast with black, large text3.5:1WCAG large text: AA

Named colours

Royal blue · ΔE 10.9Slate blue · ΔE 17.7Dodgerblue · ΔE 19.8Dark slateblue · ΔE 22.3Medium purple · ΔE 24.3Cornflower blue · ΔE 24.5
Nearest named CSS colourRoyal blue (#4169E1)ΔE 10.89, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#C77F17
Analogous#17B7C7, #2717C7
Triadic#C7175F, #5FC717
Split complementary#C72717, #B7C717
Tetradic#C717B7, #C77F17, #17C727

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#B4CFF6
Lighter +30%#86B2F1
Lighter +20%#5895EC
Lighter +10%#2B77E6
Darker −10%#124999
Darker −20%#0C336C
Darker −30%#071E3E
Darker −40%#020810
More saturated +25%#005BDE
Less saturated −25%#3364AB

Channel breakdown

R23
G95
B199
Red23 (9%)
Green95 (37.3%)
Blue199 (78%)
Hue215.45°
Saturation (HSL)79.28%
Lightness43.53%
Dominant channelBlue
Hex per channelR 17 · G 5F · B C7

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Every value on this page was computed from “175fc7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.