#243E99#243E99

#243E99 is a dark, vivid blue. Relative luminance 0.061; OKLCH L 40.3% C 0.152 H 267.0°. Best body text is #FFFFFF at 9.44:1 contrast (WCAG AA passes).

Color values

HEX	#243E99
RGB	rgb(36, 62, 153)
HSL	hsl(227, 62%, 37%)
HSV	hsv(227, 76%, 60%)
CMYK	cmyk(76.5%, 59.5%, 0%, 40%)
CIE-LAB	lab(29.71, 23.88, -52.59)
CIE-LCH	lch(29.71, 57.76, 294.42°)
OKLab	oklab(40.31% -0.0079 -0.1518)
OKLCH	oklch(40.31% 0.152 267)
XYZ	xyz(8.1979, 6.1193, 30.8799)
Luminance	0.0612 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E99 #997F24

analogous

#247999 #243E99 #452499

triadic

#243E99 #99243E #3E9924

tetradic

#243E99 #992479 #997F24 #249945

square

#243E99 #992479 #997F24 #249945

split-complementary

#243E99 #994524 #799924

monochromatic

#0D1636 #182A67 #243E99 #3052CB #5E7AD9

Accessibility & contrast

On white

9.44

#243E99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.22

#243E99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E99

9.44:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E99	#FFFFFF	#000000	##FFFFFF
##243E99	1.00	9.44	2.22	9.44
#FFFFFF	9.44	1.00	21.00	1.00
#000000	2.22	21.00	1.00	21.00
##FFFFFF	9.44	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9C

Deuteranopia (green-blind)

#004197

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #243e99;
/* rgb */ color: rgb(36, 62, 153);
/* oklch */ color: oklch(40.3% 0.152 267.0);

Tailwind

colors: {
  custom: {
    50: '#7172b8',
    500: '#243e99',
    950: '#000000',
  },
}

SCSS

$custom: #243e99;
$custom-light: #7172b8;
$custom-dark: #000000;

JSON

{
  "hex": "#243e99",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 153
  },
  "hsl": {
    "h": 226.667,
    "s": 61.905,
    "l": 37.059
  },
  "oklch": {
    "l": 0.40305,
    "c": 0.15201,
    "h": 267
  },
  "luminance": 0.0612
}

Semantic roles & 50–950 ramp

primary

#243E99

secondary

#BEA85B

accent

#C143E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #243E99

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

Preview Lab → · Contrast checker → · Palette generator →