Nerdulator> put something in

Recognised as Colour

#18174B

  • #18174B
  • Blue
  • Dark
  • Nearest: Midnight blue

#18174B is a blue with RGB values 24, 23, 75 and HSL 241°, 53%, 19%. It is a dark colour, so white text on it reaches 16.6:1 contrast (AAA for normal text). The nearest named colour is Midnight blue.

Colour values

#18174B#18174B
HEX#18174B
RGBrgb(24, 23, 75)
RGB (0–1)0.0941, 0.0902, 0.2941
RGB percentages9.4%, 9%, 29.4%
HSLhsl(241.2, 53.1%, 19.2%)
HSV / HSBhsv(241.2, 69.3%, 29.4%)
CMYK68%, 69.3%, 0%, 70.6%≈naive device-independent conversion; real print needs an ICC profile
24-bit integer1,578,827
CSS custom property--colour: #18174B;

Brightness & contrast

Relative luminance0.01315WCAG 2.x, 0 is black and 1 is white
Perceived brightness33.5 of 255ITU-R BT.601 weighting
Light or darkDark
Best text colour on this backgroundWhitecontrast 16.63:1
Contrast with white16.63:1WCAG normal text: AAA
Contrast with black1.26:1WCAG normal text: Fail
Greyscale equivalent#1B1B1B
Inverted#E7E8B4

Colour vision & accessibility

Normal visionProtanopiaDeuteranopiaTritanopia
Protanopia#00204Dno red cones; affects about 1% of men; ΔE 9.7 from the original
Deuteranopia#001C4Ano green cones; the most common form, about 1% of men; ΔE 7.8 from the original
Tritanopia#00242Eno blue cones; rare, and affects men and women equally; ΔE 35 from the original
Distinguishable without hueYesnever rely on hue alone to carry meaning
Contrast with white, large text16.63:1WCAG large text: AAA
Contrast with black, large text1.26:1WCAG large text: Fail

Named colours

Midnight blue · ΔE 22.1Dark slateblue · ΔE 23Rebecca purple · ΔE 35.5Black · ΔE 39Indigo · ΔE 40Navy · ΔE 43.3
Nearest named CSS colourMidnight blue (#191970)ΔE 22.06, a distinctly different colour
Hue familyblue
CSS keyword usableNo exact keyword

Colour harmonies

base+30°+90°+120°+180°+210°+240°+270°+330°
Complementary#4A4B17
Analogous#17304B, #32174B
Triadic#4B1817, #174B18
Split complementary#4B3217, #304B17
Tetradic#4B1730, #4A4B17, #174B32

Tints, shades & saturation

+40%+30%+20%+10%base-10%-20%-30%-40%
Lighter +40%#6260CE
Lighter +30%#3D3BC0
Lighter +20%#312F99
Lighter +10%#242372
Darker −10%#0C0B24
Darker −20%#000000
Darker −30%#000000
Darker −40%#000000
More saturated +25%#0C0B57
Less saturated −25%#24233F

Channel breakdown

R24
G23
B75
Red24 (9.4%)
Green23 (9%)
Blue75 (29.4%)
Hue241.15°
Saturation (HSL)53.06%
Lightness19.22%
Dominant channelBlue
Hex per channelR 18 · G 17 · B 4B

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 “18174b” by Nerdulator’s colour engine. Nothing here was retrieved from a database of answers or written by a model.