Midnight Blue

#2C3E50

Accessibility

AAA

10.98:1

Vs white / black

10.98:1 · 1.91:1

Sources

flat-ui

Codes

Formats

HEX

#2c3e50

RGB

rgb(44, 62, 80)

RGBA

rgba(44, 62, 80, 1)

HSL

hsl(210, 29%, 24%)

HSLA

hsla(210, 29%, 24%, 1)

HSV

hsv(210, 45%, 31%)

LAB

lab(25.44% -1.73 -13.17)

LCH

lch(25.44% 13.28 262.52)

OKLAB

oklab(0.3564 -0.014 -0.0365)

OKLCH

oklch(0.3564 0.0391 249.02)

XYZ

xyz(4.21, 4.56, 8.25)

CMYK

cmyk(45%, 22%, 0%, 69%)

CSS

color: #2c3e50;

CSS variable

--color-2c3e50: #2c3e50;

SCSS

$color-2c3e50: #2c3e50;

JavaScript

const color = "#2c3e50";

TypeScript

const color: string = "#2c3e50";

React

style={{ backgroundColor: "#2c3e50" }}

JSON

{ "hex": "#2c3e50", "rgb": { "r": 44, "g": 62, "b": 80 }, "oklch": "oklch(0.3564 0.0391 249.02)" }

Export

Developer code

css

:root {
  --midnight-blue-1: #2c3e50;
}

Design systems

Nearest official tokens

An arbitrary HEX is not an official Tailwind, Material, or Bootstrap color. Distance is CIEDE2000.

Nearest Tailwind color

slate-700

Noticeably different · ΔE 2.61 · #334155

Nearest CSS named color

DarkSlateBlue

Very different · ΔE 11.43 · #483D8B

Nearest Material color

blue-grey-800

Very different · ΔE 6.11 · #37474F

Nearest Bootstrap color

dark

Very different · ΔE 10.52 · #212529

OKLCH

Perceptual 50–950 scale

Generated in OKLCH from this hex. Not an official Tailwind scale unless the hex itself is a Tailwind token.

50e9f7ff 100dbeaf9 200c6d6e8 300adc0d4 4008fa4b9 50074899d 600617284 7004d5b6a 800394551 90027303a 950131b24

Palette

Tints & shades

Full scale from light tints through the base color into deep shades

edeff0 dcdfe2 cacfd3 b9bfc5 a7afb6 969fa8 848e99 727e8a 616e7c 4f5e6d 3e4e5f 2c3e50 283949 253443 212f3c 1d2935 1a242f 161f28 121a21 0f151b 0b1014 070a0d 040507

Palette

Tints

Mixed toward white — soft backgrounds and highlights

edeff0 dcdfe2 cacfd3 b9bfc5 a7afb6 969fa8 848e99 727e8a 616e7c 4f5e6d 3e4e5f

Palette

Shades

Mixed toward black — depth, text, and emphasis

283949 253443 212f3c 1d2935 1a242f 161f28 121a21 0f151b 0b1014 070a0d 040507

Palette

Tones

Mixed toward neutral grey — muted UI surfaces

334454 3a4958 414f5c 485460 4f5a64 565f68 5d656c 646a70 6b7074 727578 797b7c

Harmony

Complementary

Opposite on the color wheel for contrast

#2C3E50Stop 1 #4F3D2BStop 2

Harmony

Analogous

Neighbors that sit comfortably together

#2B4F4FStop 1 #2C3E50Stop 2 #2B2B4FStop 3

Harmony

Triadic

Evenly spaced triad for vibrant sets

#2C3E50Stop 1 #4F2B3DStop 2 #3D4F2BStop 3

Harmony

Split complementary

Base plus two accents beside the complement

#2C3E50Stop 1 #4F2B2BStop 2 #4F4F2BStop 3

Harmony

Monochromatic

Same hue, varied lightness and saturation

#243342Stop 1 #3F5973Stop 2 #5B80A4Stop 3 #8CA6C0Stop 4 #BDCCDBStop 5

Using this color

Where #2c3e50 works

Midnight Blue (#2c3e50) sits in the blue family at about 210° hue, 29% saturation, and 24% lightness. Contrast is 10.98:1 on white and 1.91:1 on black, so white labels read more clearly on the swatch itself. Nearest Tailwind token: slate-700 (approximation unless the hex is an official scale stop).

Sensible jobs for this swatch

supporting UI accents
text or icons on a white canvas

On a black or near-black UI, #2c3e50 is 1.91:1. Prefer it as a fill, border, or large heading rather than 16px copy.

Family context: Trust, calm, and professionalism. The most used color in SaaS, finance, and healthcare. Common uses still include buttons, charts, and accents in the Blue range — always verify the pair for this exact hex in the contrast checker.

Similar & related colors

Nearby colors from the library by perceptual distance

Tailwind slate 700#334155 Tailwind gray 700#374151 Wet Asphalt#34495E Material Blue Grey 800#37474F Tailwind sky 950#082F49 Tailwind gray 800#1F2937 Material Blue Grey 900#263238 Tailwind cyan 950#083344 Tailwind slate 800#1E293B Tailwind sky 900#0C4A6E Tailwind zinc 700#3F3F46 Tailwind slate 600#475569