What is the hex code for Midnight Blue?

Midnight Blue is #191970. In CSS the keyword midnightblue, the hex #191970, rgb(25, 25, 112) and hsl(240, 64%, 27%) all paint the same color.

What is the opposite of Midnight Blue on the color wheel?

The opposite (complementary) color is #707019, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.

Can I use Midnight Blue for text?

Midnight Blue as text on white has a contrast ratio of 14.85:1, which passes WCAG AA for body text (4.5:1). On black it is 1.41:1, which fails for body text. It works as a text color on light surfaces.

CSS color names · Blues

Midnight Blue color: hex #191970, RGB and HSL

Midnight Blue is the CSS keyword midnightblue, hex #191970, rgb(25, 25, 112), hsl(240, 64%, 27%). It is a dark, vivid blue in the blues family. Below: the colors that go with it, its tints and shades, how it reads as text, and a complete interface palette built from it.

CSS name: midnightblue
Hex: #191970
RGB: rgb(25, 25, 112)
HSL: hsl(240, 64%, 27%)
On white: 14.85:1 — passes AA for body text
On black: 1.41:1 — fails AA; use as a fill, not text

.example {
  color: midnightblue;          /* keyword */
  color: #191970;          /* hex */
  color: rgb(25, 25, 112); /* rgb */
  color: hsl(240, 64%, 27%); /* hsl */
}

What colors go with midnight blue

Each match keeps midnight blue's saturation and lightness and rotates only the hue, so the relationship is the wheel's and nothing else. Any of these can be an accent beside midnight blue as the primary; the harmony guides explain which rule suits which interface.

Complementary

The opposite hue, 180° away — the strongest contrast, best kept to one accent per screen.

#707019

Split-complementary

The two neighbors of the complement, at 150° and 210° — most of the contrast with less tension, and two accents instead of one.

#704519

#457019

Triadic

Two hues at 120° and 240° — three evenly spaced signals, the scheme charts and category colors want.

#701919

#197019

Analogous

The neighbors at −30° and +30° — calm and cohesive, with emphasis coming from weight and size rather than hue.

#194570

#451970

Tints and shades of midnight blue

Tints add lightness toward white; shades remove it toward black. The hue and saturation stay fixed, so every step still reads as midnight blue — these are the hover, pressed, disabled and surface variants a single brand color needs.

Tints (lighter)

#2424a3

#3434d2

#6767dd

#9999e8

#ccccf4

Shades (darker)

#15155d

#11114b

#0d0d38

#080825

#040413

A UI color palette built from midnight blue

The eight semantic roles an interface actually uses, derived from midnight blue as the primary with the split-complementary rule: secondary and accent rotate around the wheel, and the five neutrals take the hue at lightness steps tuned for light and dark mode. This is the same derivation the palette generator runs — open it there to change the rule, drag the anchors, or export the set as CSS variables.

Light mode

primary: #191970
secondary: #704519
accent: #457019
background: #fcfcfd
surface: #f3f3f7
text: #111122
muted: #56568f
border: #dfdfec

Dark mode

primary: #4343d5
secondary: #d58c43
accent: #8cd543
background: #0e0e1b
surface: #151528
text: #f3f3f6
muted: #9595b7
border: #272749

Open midnight blue in the palette generator

Using midnight blue in an interface

Blue is the default interface color for a reason: it sits comfortably behind content, it has a wide usable lightness range for hover and pressed states, and its complement (orange) leaves red and green free for status. Most of the good primaries in this set are here. Whichever role midnight blue takes, define it once as a token rather than repeating the keyword: the semantic palette guide covers the eight roles, and the guides to complementary, triadic and the other color schemes explain how to weight the matches above.

What is the hex code for Midnight Blue?: Midnight Blue is #191970. In CSS the keyword midnightblue, the hex #191970, rgb(25, 25, 112) and hsl(240, 64%, 27%) all paint the same color.
What colors go with Midnight Blue?: Its complement is #707019, the split-complementary pair is #704519 and #457019, the triadic partners are #701919 and #197019, and the analogous neighbors are #194570 and #451970. In an interface, use Midnight Blue for most colored elements and one of these for a single accent, at roughly an 80/20 split.
What is the opposite of Midnight Blue on the color wheel?: The opposite (complementary) color is #707019, the same saturation and lightness rotated 180° around the HSL wheel. Complementary pairs give the strongest contrast, which is why the complement should be used sparingly rather than at equal weight.
Can I use Midnight Blue for text?: Midnight Blue as text on white has a contrast ratio of 14.85:1, which passes WCAG AA for body text (4.5:1). On black it is 1.41:1, which fails for body text. It works as a text color on light surfaces.