#243AAE#243AAE

#243AAE is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.5% C 0.185 H 268.2°. Best body text is #FFFFFF at 9.16:1 contrast (WCAG AA passes).

Color values

HEX	#243AAE
RGB	rgb(36, 58, 174)
HSL	hsl(230, 66%, 41%)
HSV	hsv(230, 79%, 68%)
CMYK	cmyk(79.3%, 66.7%, 0%, 31.8%)
CIE-LAB	lab(30.53, 34.50, -63.91)
CIE-LCH	lch(30.53, 72.63, 298.36°)
OKLab	oklab(41.48% -0.0057 -0.185)
OKLCH	oklch(41.48% 0.185 268.2)
XYZ	xyz(9.8779, 6.4560, 40.7617)
Luminance	0.0646 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243AAE #AE9824

analogous

#247FAE #243AAE #5324AE

triadic

#243AAE #AE243A #3AAE24

tetradic

#243AAE #AE247F #AE9824 #24AE53

square

#243AAE #AE247F #AE9824 #24AE53

split-complementary

#243AAE #AE5324 #7FAE24

monochromatic

#0F1849 #1A297B #243AAE #3952D6 #6C7EE1

Accessibility & contrast

On white

9.16

#243AAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.29

#243AAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243AAE

9.16:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243AAE	#FFFFFF	#000000	##FFFFFF
##243AAE	1.00	9.16	2.29	9.16
#FFFFFF	9.16	1.00	21.00	1.00
#000000	2.29	21.00	1.00	21.00
##FFFFFF	9.16	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0041AC

Tritanopia (blue-blind)

#00596F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #243aae;
/* rgb */ color: rgb(36, 58, 174);
/* oklch */ color: oklch(41.5% 0.185 268.2);

Tailwind

colors: {
  custom: {
    50: '#7770c7',
    500: '#243aae',
    950: '#000000',
  },
}

SCSS

$custom: #243aae;
$custom-light: #7770c7;
$custom-dark: #000000;

JSON

{
  "hex": "#243aae",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 174
  },
  "hsl": {
    "h": 230.435,
    "s": 65.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.41484,
    "c": 0.18512,
    "h": 268.2
  },
  "luminance": 0.06457
}

Semantic roles & 50–950 ramp

primary

#243AAE

secondary

#C7B867

accent

#CE3FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #243AAE

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

Preview Lab → · Contrast checker → · Palette generator →