#243E9A#243E9A

#243E9A is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.153 H 267.1°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#243E9A
RGB	rgb(36, 62, 154)
HSL	hsl(227, 62%, 37%)
HSV	hsv(227, 77%, 60%)
CMYK	cmyk(76.6%, 59.7%, 0%, 39.6%)
CIE-LAB	lab(29.79, 24.27, -53.06)
CIE-LCH	lch(29.79, 58.35, 294.58°)
OKLab	oklab(40.39% -0.0079 -0.1532)
OKLCH	oklch(40.39% 0.153 267.1)
XYZ	xyz(8.2809, 6.1525, 31.3167)
Luminance	0.0615 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E9A #9A8024

analogous

#24799A #243E9A #45249A

triadic

#243E9A #9A243E #3E9A24

tetradic

#243E9A #9A2479 #9A8024 #249A45

square

#243E9A #9A2479 #9A8024 #249A45

split-complementary

#243E9A #9A4524 #799A24

monochromatic

#0D1637 #182A68 #243E9A #3052CC #5F7ADA

Accessibility & contrast

On white

9.41

#243E9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#243E9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E9A

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E9A	#FFFFFF	#000000	##FFFFFF
##243E9A	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9D

Deuteranopia (green-blind)

#004198

Tritanopia (blue-blind)

#005566

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #243e9a;
/* rgb */ color: rgb(36, 62, 154);
/* oklch */ color: oklch(40.4% 0.153 267.1);

Tailwind

colors: {
  custom: {
    50: '#7172b9',
    500: '#243e9a',
    950: '#000000',
  },
}

SCSS

$custom: #243e9a;
$custom-light: #7172b9;
$custom-dark: #000000;

JSON

{
  "hex": "#243e9a",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 154
  },
  "hsl": {
    "h": 226.78,
    "s": 62.105,
    "l": 37.255
  },
  "oklch": {
    "l": 0.40392,
    "c": 0.15341,
    "h": 267.1
  },
  "luminance": 0.06153
}

Semantic roles & 50–950 ramp

primary

#243E9A

secondary

#BFA95B

accent

#C143E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #243E9A

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

Preview Lab → · Contrast checker → · Palette generator →