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Recognised as Colour

#174B82

  • #174B82
  • Blue
  • Dark
  • Nearest: Dark slateblue

#174B82 is a blue with RGB values 23, 75, 130 and HSL 211°, 70%, 30%. It is a dark colour, so white text on it reaches 8.9:1 contrast (AAA for normal text). The nearest named colour is Dark slateblue.

Colour values

#174B82#174B82
HEX#174B82
RGBrgb(23, 75, 130)
RGB (0–1)0.0902, 0.2941, 0.5098
RGB percentages9%, 29.4%, 51%
HSLhsl(210.8, 69.9%, 30%)
HSV / HSBhsv(210.8, 82.3%, 51%)
CMYK82.3%, 42.3%, 0%, 49%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,526,658
CSS custom property--colour: #174B82;

Brightness & contrast

Relative luminance0.06826WCAG 2.x, 0 is black and 1 is white
Perceived brightness73.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 8.88:1
Contrast with white8.88:1WCAG normal text: AAA
Contrast with black2.37:1WCAG normal text: Fail
Greyscale equivalent#444444
Inverted#E8B47D

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#304F84no red cones; affects about 1% of men; ΔE 4 from the original
Deuteranopia#1E4581no green cones; the most common form, about 1% of men; ΔE 5.3 from the original
Tritanopia#005860no blue cones; rare, and affects men and women equally; ΔE 34.1 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text8.88:1WCAG large text: AAA
Contrast with black, large text2.37:1WCAG large text: Fail

Named colours

Dark slateblue · ΔE 22.7Steel blue · ΔE 22.9Slate grey · ΔE 33.7Cornflower blue · ΔE 33.8Midnight blue · ΔE 34.5Light slate grey · ΔE 35.4
Nearest named CSS colourDark slateblue (#483D8B)ΔE 22.74, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#824E17
Analogous#178082, #191782
Triadic#82174B, #4B8217
Split complementary#821917, #808217
Tetradic#821780, #824E17, #178219

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7DB1E8
Lighter +30%#5297E0
Lighter +20%#267DD9
Lighter +10%#1F64AD
Darker −10%#0F3257
Darker −20%#08192B
Darker −30%#000000
Darker −40%#000000
More saturated +25%#044A95
Less saturated −25%#2A4C6F

Channel breakdown

R23
G75
B130
Red23 (9%)
Green75 (29.4%)
Blue130 (51%)
Hue210.84°
Saturation (HSL)69.93%
Lightness30%
Dominant channelBlue
Hex per channelR 17 · G 4B · B 82

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Every value on this page was computed from “174b82” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.