#243DBD#243DBD

#243DBD is a dark, highly saturated blue. Relative luminance 0.074; OKLCH L 43.5% C 0.201 H 267.7°. Best body text is #FFFFFF at 8.48:1 contrast (WCAG AA passes).

Color values

HEX	#243DBD
RGB	rgb(36, 61, 189)
HSL	hsl(230, 68%, 44%)
HSV	hsv(230, 81%, 74%)
CMYK	cmyk(81%, 67.7%, 0%, 25.9%)
CIE-LAB	lab(32.67, 38.08, -69.30)
CIE-LCH	lch(32.67, 79.08, 298.79°)
OKLab	oklab(43.47% -0.0082 -0.2008)
OKLCH	oklch(43.47% 0.201 267.7)
XYZ	xyz(11.5784, 7.3853, 48.9495)
Luminance	0.0739 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243DBD #BDA424

analogous

#248ABD #243DBD #5824BD

triadic

#243DBD #BD243D #3DBD24

tetradic

#243DBD #BD248A #BDA424 #24BD58

square

#243DBD #BD248A #BDA424 #24BD58

split-complementary

#243DBD #BD5824 #8ABD24

monochromatic

#101C56 #1A2C8A #243DBD #435CDB #7688E5

Accessibility & contrast

On white

8.48

#243DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.48

#243DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243DBD

8.48:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243DBD	#FFFFFF	#000000	##FFFFFF
##243DBD	1.00	8.48	2.48	8.48
#FFFFFF	8.48	1.00	21.00	1.00
#000000	2.48	21.00	1.00	21.00
##FFFFFF	8.48	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0054C1

Deuteranopia (green-blind)

#0046BB

Tritanopia (blue-blind)

#006078

Achromatopsia (no color)

#4D4D4D

Design tokens & code

CSS

--color: #243dbd;
/* rgb */ color: rgb(36, 61, 189);
/* oklch */ color: oklch(43.5% 0.201 267.7);

Tailwind

colors: {
  custom: {
    50: '#7a72d2',
    500: '#243dbd',
    950: '#000000',
  },
}

SCSS

$custom: #243dbd;
$custom-light: #7a72d2;
$custom-dark: #000000;

JSON

{
  "hex": "#243dbd",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 189
  },
  "hsl": {
    "h": 230.196,
    "s": 68,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43472,
    "c": 0.20092,
    "h": 267.7
  },
  "luminance": 0.07387
}

Semantic roles & 50–950 ramp

primary

#243DBD

secondary

#CCBD70

accent

#CE3DEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0814

muted

#7C7B83

Preview Lab

Preview with #243DBD

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

Preview Lab → · Contrast checker → · Palette generator →