#243E9E#243E9E

#243E9E is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.159 H 267.2°. Best body text is #FFFFFF at 9.30:1 contrast (WCAG AA passes).

Color values

HEX	#243E9E
RGB	rgb(36, 62, 158)
HSL	hsl(227, 63%, 38%)
HSV	hsv(227, 77%, 62%)
CMYK	cmyk(77.2%, 60.8%, 0%, 38%)
CIE-LAB	lab(30.13, 25.81, -54.95)
CIE-LCH	lch(30.13, 60.71, 295.16°)
OKLab	oklab(40.74% -0.0078 -0.1587)
OKLCH	oklch(40.74% 0.159 267.2)
XYZ	xyz(8.6196, 6.2880, 33.1005)
Luminance	0.0629 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E9E #9E8424

analogous

#247B9E #243E9E #47249E

triadic

#243E9E #9E243E #3E9E24

tetradic

#243E9E #9E247B #9E8424 #249E47

square

#243E9E #9E247B #9E8424 #249E47

split-complementary

#243E9E #9E4724 #7B9E24

monochromatic

#0D173A #192A6C #243E9E #2F52D0 #617BDB

Accessibility & contrast

On white

9.30

#243E9E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#243E9E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E9E

9.30:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E9E	#FFFFFF	#000000	##FFFFFF
##243E9E	1.00	9.30	2.26	9.30
#FFFFFF	9.30	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.30	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA1

Deuteranopia (green-blind)

#00419C

Tritanopia (blue-blind)

#005668

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #243e9e;
/* rgb */ color: rgb(36, 62, 158);
/* oklch */ color: oklch(40.7% 0.159 267.2);

Tailwind

colors: {
  custom: {
    50: '#7273bb',
    500: '#243e9e',
    950: '#000000',
  },
}

SCSS

$custom: #243e9e;
$custom-light: #7273bb;
$custom-dark: #000000;

JSON

{
  "hex": "#243e9e",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 158
  },
  "hsl": {
    "h": 227.213,
    "s": 62.887,
    "l": 38.039
  },
  "oklch": {
    "l": 0.40745,
    "c": 0.15893,
    "h": 267.2
  },
  "luminance": 0.06289
}

Semantic roles & 50–950 ramp

primary

#243E9E

secondary

#C0AB5E

accent

#C342E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #243E9E

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

Preview Lab → · Contrast checker → · Palette generator →