Nerdulator> put something in

Recognised as Colour

#172C97

  • #172C97
  • Blue
  • Dark
  • Nearest: Midnight blue

#172C97 is a blue with RGB values 23, 44, 151 and HSL 230°, 74%, 34%. It is a dark colour, so white text on it reaches 11.4:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#172C97#172C97
HEX#172C97
RGBrgb(23, 44, 151)
RGB (0–1)0.0902, 0.1725, 0.5922
RGB percentages9%, 17.3%, 59.2%
HSLhsl(230.2, 73.6%, 34.1%)
HSV / HSBhsv(230.2, 84.8%, 59.2%)
CMYK84.8%, 70.9%, 0%, 40.8%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,518,743
CSS custom property--colour: #172C97;

Brightness & contrast

Relative luminance0.04218WCAG 2.x, 0 is black and 1 is white
Perceived brightness62.4 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 11.39:1
Contrast with white11.39:1WCAG normal text: AAA
Contrast with black1.84:1WCAG normal text: Fail
Greyscale equivalent#2F2F2F
Inverted#E8D368

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00409Ano red cones; affects about 1% of men; ΔE 15.9 from the original
Deuteranopia#003495no green cones; the most common form, about 1% of men; ΔE 8.2 from the original
Tritanopia#004A5Eno blue cones; rare, and affects men and women equally; ΔE 62.9 from the original
Distinguishable without hueShifts in lightness toonever rely on hue alone to carry meaning
Contrast with white, large text11.39:1WCAG large text: AAA
Contrast with black, large text1.84:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 13.7Rebecca purple · ΔE 17.9Navy · ΔE 18.3Indigo · ΔE 19.4Dark slateblue · ΔE 20.7Dark blue · ΔE 20.9
Nearest named CSS colourMidnight blue (#191970)ΔE 13.74, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#978217
Analogous#176C97, #421797
Triadic#97172C, #2C9717
Split complementary#974217, #6C9717
Tetradic#97176C, #978217, #179742

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#8C9CEE
Lighter +30%#6076E7
Lighter +20%#3450E0
Lighter +10%#1E39C3
Darker −10%#101F6B
Darker −20%#0A123E
Darker −30%#030512
Darker −40%#000000
More saturated +25%#011DAD
Less saturated −25%#2D3B81

Channel breakdown

R23
G44
B151
Red23 (9%)
Green44 (17.3%)
Blue151 (59.2%)
Hue230.16°
Saturation (HSL)73.56%
Lightness34.12%
Dominant channelBlue
Hex per channelR 17 · G 2C · B 97

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 “172c97” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.