Nerdulator> put something in

Recognised as Colour

#175B80

  • #175B80
  • Blue
  • Dark
  • Nearest: Steel blue

#175B80 is a blue with RGB values 23, 91, 128 and HSL 201°, 70%, 30%. It is a dark colour, so white text on it reaches 7.4:1 contrast (AAA for normal text). The nearest named colour is Steel blue.

Colour values

#175B80#175B80
HEX#175B80
RGBrgb(23, 91, 128)
RGB (0–1)0.0902, 0.3569, 0.502
RGB percentages9%, 35.7%, 50.2%
HSLhsl(201.1, 69.5%, 29.6%)
HSV / HSBhsv(201.1, 82%, 50.2%)
CMYK82%, 28.9%, 0%, 49.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,530,752
CSS custom property--colour: #175B80;

Brightness & contrast

Relative luminance0.09223WCAG 2.x, 0 is black and 1 is white
Perceived brightness83 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 7.38:1
Contrast with white7.38:1WCAG normal text: AAA
Contrast with black2.84:1WCAG normal text: Fail
Greyscale equivalent#4F4F4F
Inverted#E8A47F

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#495B82no red cones; affects about 1% of men; ΔE 11.5 from the original
Deuteranopia#3B517Fno green cones; the most common form, about 1% of men; ΔE 12.9 from the original
Tritanopia#006468no blue cones; rare, and affects men and women equally; ΔE 23.5 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text7.38:1WCAG large text: AAA
Contrast with black, large text2.84:1WCAG large text: Fail

Named colours

Steel blue · ΔE 17.2Slate grey · ΔE 23.4Dark slate grey · ΔE 23.9Light slate grey · ΔE 25.3Dim grey · ΔE 28.6Teal · ΔE 30.8
Nearest named CSS colourSteel blue (#4682B4)ΔE 17.23, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#803C17
Analogous#178070, #172780
Triadic#80175B, #5B8017
Split complementary#801727, #807017
Tetradic#701780, #803C17, #278017

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#7CC1E7
Lighter +30%#50ADE0
Lighter +20%#2798D6
Lighter +10%#1F7AAB
Darker −10%#0F3C55
Darker −20%#071E2A
Darker −30%#000000
Darker −40%#000000
More saturated +25%#046193
Less saturated −25%#2A556D

Channel breakdown

R23
G91
B128
Red23 (9%)
Green91 (35.7%)
Blue128 (50.2%)
Hue201.14°
Saturation (HSL)69.54%
Lightness29.61%
Dominant channelBlue
Hex per channelR 17 · G 5B · B 80

Keep nerding

Every link below is a page Nerdulator can generate from what it already knows about this value.

Nerdulate something else

Nothing in mind? Surprise me · today’s page

Every value on this page was computed from “175b80” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.