#243A77#243A77

#243A77 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.6% C 0.108 H 266.3°. Best body text is #FFFFFF at 10.79:1 contrast (WCAG AA passes).

Color values

HEX	#243A77
RGB	rgb(36, 58, 119)
HSL	hsl(224, 54%, 30%)
HSV	hsv(224, 70%, 47%)
CMYK	cmyk(69.7%, 51.3%, 0%, 53.3%)
CIE-LAB	lab(25.96, 13.35, -37.56)
CIE-LCH	lch(25.96, 39.86, 289.56°)
OKLab	oklab(36.65% -0.007 -0.1077)
OKLCH	oklch(36.65% 0.108 266.3)
XYZ	xyz(5.5692, 4.7326, 18.0692)
Luminance	0.0473 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A77 #776124

analogous

#246377 #243A77 #372477

triadic

#243A77 #77243A #3A7724

tetradic

#243A77 #772463 #776124 #247737

square

#243A77 #772463 #776124 #247737

split-complementary

#243A77 #773724 #637724

monochromatic

#080C19 #162348 #243A77 #3251A6 #4C6DC9

Accessibility & contrast

On white

10.79

#243A77 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243A77 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A77

10.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A77	#FFFFFF	#000000	##FFFFFF
##243A77	1.00	10.79	1.95	10.79
#FFFFFF	10.79	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#194179

Deuteranopia (green-blind)

#033A76

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243a77;
/* rgb */ color: rgb(36, 58, 119);
/* oklch */ color: oklch(36.6% 0.108 266.3);

Tailwind

colors: {
  custom: {
    50: '#696f9f',
    500: '#243a77',
    950: '#000000',
  },
}

SCSS

$custom: #243a77;
$custom-light: #696f9f;
$custom-dark: #000000;

JSON

{
  "hex": "#243a77",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 119
  },
  "hsl": {
    "h": 224.096,
    "s": 53.548,
    "l": 30.392
  },
  "oklch": {
    "l": 0.36647,
    "c": 0.10792,
    "h": 266.3
  },
  "luminance": 0.04733
}

Semantic roles & 50–950 ramp

primary

#243A77

secondary

#AA914D

accent

#B64BDD

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243A77

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

Preview Lab → · Contrast checker → · Palette generator →