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Recognised as Colour

#17427C

  • #17427C
  • Blue
  • Dark
  • Nearest: Dark slateblue

#17427C is a blue with RGB values 23, 66, 124 and HSL 214°, 69%, 29%. It is a dark colour, so white text on it reaches 10:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#17427C#17427C
HEX#17427C
RGBrgb(23, 66, 124)
RGB (0–1)0.0902, 0.2588, 0.4863
RGB percentages9%, 25.9%, 48.6%
HSLhsl(214.5, 68.7%, 28.8%)
HSV / HSBhsv(214.5, 81.5%, 48.6%)
CMYK81.5%, 46.8%, 0%, 51.4%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,524,348
CSS custom property--colour: #17427C;

Brightness & contrast

Relative luminance0.05534WCAG 2.x, 0 is black and 1 is white
Perceived brightness66.8 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 9.97:1
Contrast with white9.97:1WCAG normal text: AAA
Contrast with black2.11:1WCAG normal text: Fail
Greyscale equivalent#3D3D3D
Inverted#E8BD83

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#24477Eno red cones; affects about 1% of men; ΔE 3.2 from the original
Deuteranopia#0D3E7Bno green cones; the most common form, about 1% of men; ΔE 2.8 from the original
Tritanopia#005059no blue cones; rare, and affects men and women equally; ΔE 36.2 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text9.97:1WCAG large text: AAA
Contrast with black, large text2.11:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 19Steel blue · ΔE 27.5Midnight blue · ΔE 29.6Cornflower blue · ΔE 35.9Rebecca purple · ΔE 36.7Slate grey · ΔE 37.6
Nearest named CSS colourDark slateblue (#483D8B)ΔE 19.02, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#7C5117
Analogous#17757C, #1E177C
Triadic#7C1742, #427C17
Split complementary#7C1E17, #757C17
Tetradic#7C1775, #7C5117, #177C1E

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#79A7E6
Lighter +30%#4E8BDE
Lighter +20%#2770D2
Lighter +10%#1F59A7
Darker −10%#0F2B51
Darker −20%#071426
Darker −30%#000000
Darker −40%#000000
More saturated +25%#053F8E
Less saturated −25%#29456A

Channel breakdown

R23
G66
B124
Red23 (9%)
Green66 (25.9%)
Blue124 (48.6%)
Hue214.46°
Saturation (HSL)68.71%
Lightness28.82%
Dominant channelBlue
Hex per channelR 17 · G 42 · B 7C

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Every value on this page was computed from “17427c” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.