#243789#243789

#243789 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.5% C 0.138 H 268.8°. Best body text is #FFFFFF at 10.59:1 contrast (WCAG AA passes).

Color values

HEX	#243789
RGB	rgb(36, 55, 137)
HSL	hsl(229, 58%, 34%)
HSV	hsv(229, 74%, 54%)
CMYK	cmyk(73.7%, 59.9%, 0%, 46.3%)
CIE-LAB	lab(26.49, 22.46, -48.00)
CIE-LCH	lch(26.49, 53.00, 295.08°)
OKLab	oklab(37.48% -0.0029 -0.1384)
OKLCH	oklch(37.48% 0.138 268.8)
XYZ	xyz(6.6075, 4.9129, 24.2621)
Luminance	0.0491 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243789 #897624

analogous

#246A89 #243789 #442489

triadic

#243789 #892437 #378924

tetradic

#243789 #89246A #897624 #248944

square

#243789 #89246A #897624 #248944

split-complementary

#243789 #894424 #6A8924

monochromatic

#0B1028 #172459 #243789 #314AB9 #556DD2

Accessibility & contrast

On white

10.59

#243789 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.98

#243789 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243789

10.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243789	#FFFFFF	#000000	##FFFFFF
##243789	1.00	10.59	1.98	10.59
#FFFFFF	10.59	1.00	21.00	1.00
#000000	1.98	21.00	1.00	21.00
##FFFFFF	10.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438C

Deuteranopia (green-blind)

#003A87

Tritanopia (blue-blind)

#004B5A

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243789;
/* rgb */ color: rgb(36, 55, 137);
/* oklch */ color: oklch(37.5% 0.138 268.8);

Tailwind

colors: {
  custom: {
    50: '#6e6dac',
    500: '#243789',
    950: '#000000',
  },
}

SCSS

$custom: #243789;
$custom-light: #6e6dac;
$custom-dark: #000000;

JSON

{
  "hex": "#243789",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 137
  },
  "hsl": {
    "h": 228.713,
    "s": 58.382,
    "l": 33.922
  },
  "oklch": {
    "l": 0.37482,
    "c": 0.13847,
    "h": 268.8
  },
  "luminance": 0.04914
}

Semantic roles & 50–950 ramp

primary

#243789

secondary

#B7A452

accent

#C446E2

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #243789

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

Preview Lab → · Contrast checker → · Palette generator →