#243A5D#243A5D

#243A5D is a dark, moderate blue. Relative luminance 0.042; OKLCH L 34.8% C 0.068 H 259.3°. Best body text is #FFFFFF at 11.42:1 contrast (WCAG AA passes).

Color values

HEX#243A5D
RGBrgb(36, 58, 93)
HSLhsl(217, 44%, 25%)
HSVhsv(217, 61%, 36%)
CMYKcmyk(61.3%, 37.6%, 0%, 63.5%)
CIE-LABlab(24.29, 3.31, -23.51)
CIE-LCHlch(24.29, 23.74, 278.02°)
OKLaboklab(34.83% -0.0125 -0.0665)
OKLCHoklch(34.83% 0.068 259.3)
XYZxyz(4.2157, 4.1911, 10.9406)
Luminance0.0419 (WCAG relative)
Temperaturecool
Familyblue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary
#243A5D #5D4724
analogous
#24565D #243A5D #2A245D
triadic
#243A5D #5D243A #3A5D24
tetradic
#243A5D #5D2456 #5D4724 #245D2A
square
#243A5D #5D2456 #5D4724 #245D2A
split-complementary
#243A5D #5D2A24 #565D24
monochromatic
#090E16 #131E31 #243A5D #355689 #4671B5

Accessibility & contrast

On white

11.42
#243A5D on #FFFFFF
AA ✓AA large ✓AAA ✓

On black

1.84
#243A5D on #000000
AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A5D
11.42:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg##243A5D#FFFFFF#000000##FFFFFF
##243A5D1.0011.421.8411.42
#FFFFFF11.421.0021.001.00
#0000001.8421.001.0021.00
##FFFFFF11.421.0021.001.00

Color blindness preview

Protanopia (red-blind)
#2C3D5E
Deuteranopia (green-blind)
#24375C
Tritanopia (blue-blind)
#004247
Achromatopsia (no color)
#3A3A3A

Design tokens & code

CSS
--color: #243a5d;
/* rgb */ color: rgb(36, 58, 93);
/* oklch */ color: oklch(34.8% 0.068 259.3);
Tailwind
colors: {
  custom: {
    50: '#646f8b',
    500: '#243a5d',
    950: '#000000',
  },
}
SCSS
$custom: #243a5d;
$custom-light: #646f8b;
$custom-dark: #000000;
JSON
{
  "hex": "#243a5d",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 93
  },
  "hsl": {
    "h": 216.842,
    "s": 44.186,
    "l": 25.294
  },
  "oklch": {
    "l": 0.34826,
    "c": 0.06764,
    "h": 259.3
  },
  "luminance": 0.04191
}

Semantic roles & 50–950 ramp

primary
#243A5D
secondary
#91764C
accent
#A254D4
background
#F6F6F8
surface
#EBECF0
border
#C6C7CB
text
#06070C
muted
#7A7A7D

Preview Lab

Preview with #243A5D

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →

#243A5D Color — HEX, RGB, HSL, OKLCH & Contrast — Tintiva