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Recognised as Colour

#174CD7

  • #174CD7
  • Blue
  • Dark
  • Nearest: Medium slateblue

#174CD7 is a blue with RGB values 23, 76, 215 and HSL 223°, 81%, 47%. It is a dark colour, so white text on it reaches 6.9:1 contrast (AA for normal text). The nearest named colour is Medium slateblue.

Colour values

#174CD7#174CD7
HEX#174CD7
RGBrgb(23, 76, 215)
RGB (0–1)0.0902, 0.298, 0.8431
RGB percentages9%, 29.8%, 84.3%
HSLhsl(223.4, 80.7%, 46.7%)
HSV / HSBhsv(223.4, 89.3%, 84.3%)
CMYK89.3%, 64.7%, 0%, 15.7%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,526,999
CSS custom property--colour: #174CD7;

Brightness & contrast

Relative luminance0.10257WCAG 2.x, 0 is black and 1 is white
Perceived brightness93.9 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 6.88:1
Contrast with white6.88:1WCAG normal text: AA
Contrast with black3.05:1WCAG normal text: Fail
Greyscale equivalent#4B4B4B
Inverted#E8B328

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0063DBno red cones; affects about 1% of men; ΔE 17.1 from the original
Deuteranopia#0051D4no green cones; the most common form, about 1% of men; ΔE 5.9 from the original
Tritanopia#00728Bno blue cones; rare, and affects men and women equally; ΔE 77.3 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text6.88:1WCAG large text: AAA
Contrast with black, large text3.05:1WCAG large text: AA

Named colours

Medium slateblue · ΔE 17.4Royal blue · ΔE 17.7Slate blue · ΔE 18.8Dark blue · ΔE 27.7Rebecca purple · ΔE 29.1Navy · ΔE 29.2
Nearest named CSS colourMedium slateblue (#7B68EE)ΔE 17.37, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#D7A217
Analogous#17ACD7, #4217D7
Triadic#D7174C, #4CD717
Split complementary#D74217, #ACD717
Tetradic#D717AC, #D7A217, #17D742

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#C2D1F8
Lighter +30%#93AEF4
Lighter +20%#658BEF
Lighter +10%#3769EA
Darker −10%#123CA9
Darker −20%#0D2B7B
Darker −30%#081B4D
Darker −40%#030B1F
More saturated +25%#0042EE
Less saturated −25%#3559B9

Channel breakdown

R23
G76
B215
Red23 (9%)
Green76 (29.8%)
Blue215 (84.3%)
Hue223.44°
Saturation (HSL)80.67%
Lightness46.67%
Dominant channelBlue
Hex per channelR 17 · G 4C · B D7

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Every value on this page was computed from “174cd7” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.