#243A9C#243A9C

#243A9C is a dark, vivid blue. Relative luminance 0.058; OKLCH L 39.8% C 0.161 H 268.2°. Best body text is #FFFFFF at 9.72:1 contrast (WCAG AA passes).

Color values

HEX	#243A9C
RGB	rgb(36, 58, 156)
HSL	hsl(229, 63%, 38%)
HSV	hsv(229, 77%, 61%)
CMYK	cmyk(76.9%, 62.8%, 0%, 38.8%)
CIE-LAB	lab(28.90, 27.74, -55.73)
CIE-LCH	lch(28.90, 62.25, 296.46°)
OKLab	oklab(39.78% -0.0051 -0.1611)
OKLCH	oklch(39.78% 0.161 268.2)
XYZ	xyz(8.2393, 5.8006, 32.1314)
Luminance	0.0580 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A9C #9C8624

analogous

#24769C #243A9C #4A249C

triadic

#243A9C #9C243A #3A9C24

tetradic

#243A9C #9C2476 #9C8624 #249C4A

square

#243A9C #9C2476 #9C8624 #249C4A

split-complementary

#243A9C #9C4A24 #769C24

monochromatic

#0D1539 #19286A #243A9C #2F4CCE #6076DA

Accessibility & contrast

On white

9.72

#243A9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.16

#243A9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A9C

9.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A9C	#FFFFFF	#000000	##FFFFFF
##243A9C	1.00	9.72	2.16	9.72
#FFFFFF	9.72	1.00	21.00	1.00
#000000	2.16	21.00	1.00	21.00
##FFFFFF	9.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A9F

Deuteranopia (green-blind)

#003F9A

Tritanopia (blue-blind)

#005365

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #243a9c;
/* rgb */ color: rgb(36, 58, 156);
/* oklch */ color: oklch(39.8% 0.161 268.2);

Tailwind

colors: {
  custom: {
    50: '#7270ba',
    500: '#243a9c',
    950: '#000000',
  },
}

SCSS

$custom: #243a9c;
$custom-light: #7270ba;
$custom-dark: #000000;

JSON

{
  "hex": "#243a9c",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 156
  },
  "hsl": {
    "h": 229,
    "s": 62.5,
    "l": 37.647
  },
  "oklch": {
    "l": 0.39783,
    "c": 0.16117,
    "h": 268.2
  },
  "luminance": 0.05801
}

Semantic roles & 50–950 ramp

primary

#243A9C

secondary

#BFAD5C

accent

#C842E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090712

muted

#7B7A81

Preview Lab

Preview with #243A9C

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

Preview Lab → · Contrast checker → · Palette generator →