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Colour

#174AB0

  • #174AB0
  • Blue
  • Dark
  • Nearest: Royal blue

#174AB0 is a blue with RGB values 23, 74, 176 and HSL 220°, 77%, 39%. It is a dark colour, so white text on it reaches 7.9:1 contrast (AAA for normal text). The nearest named colour is Royal blue.

Colour values

#174AB0#174AB0
HEX#174AB0
RGBrgb(23, 74, 176)
RGB (0–1)0.0902, 0.2902, 0.6902
RGB percentages9%, 29%, 69%
HSLhsl(220, 76.9%, 39%)
HSV / HSBhsv(220, 86.9%, 69%)
CMYK86.9%, 58%, 0%, 31%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,526,448
CSS custom property--colour: #174AB0;

Brightness & contrast

Relative luminance0.08214WCAG 2.x, 0 is black and 1 is white
Perceived brightness83.1 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.95:1
Contrast with white7.95:1WCAG normal text: AAA
Contrast with black2.64:1WCAG normal text: Fail
Greyscale equivalent#474747
Inverted#E8B54F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#0058B3no red cones; affects about 1% of men; ΔE 11 from the original
Deuteranopia#004AAEno green cones; the most common form, about 1% of men; ΔE 2 from the original
Tritanopia#006475no blue cones; rare, and affects men and women equally; ΔE 59.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.95:1WCAG large text: AAA
Contrast with black, large text2.64:1WCAG large text: Fail

Named colours

Royal blue · ΔE 15.1Slate blue · ΔE 16.6Dark slateblue · ΔE 17.2Midnight blue · ΔE 22.2Rebecca purple · ΔE 22.6Medium slateblue · ΔE 25.8
Nearest named CSS colourRoyal blue (#4169E1)ΔE 15.14, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#B07D17
Analogous#1797B0, #3117B0
Triadic#B0174A, #4AB017
Split complementary#B03117, #97B017
Tetradic#B01796, #B07D17, #17B030

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#A0BCF3
Lighter +30%#739CED
Lighter +20%#467CE7
Lighter +10%#1D5DDD
Darker −10%#113783
Darker −20%#0B2456
Darker −30%#051129
Darker −40%#000000
More saturated +25%#0042C7
Less saturated −25%#305297

Channel breakdown

R23
G74
B176
Red23 (9%)
Green74 (29%)
Blue176 (69%)
Hue220°
Saturation (HSL)76.88%
Lightness39.02%
Dominant channelBlue
Hex per channelR 17 · G 4A · B B0

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Every value on this page was computed from “174ab0” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.