#243BBD#243BBD

#243BBD is a dark, highly saturated blue. Relative luminance 0.072; OKLCH L 43.1% C 0.203 H 267.9°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#243BBD
RGB	rgb(36, 59, 189)
HSL	hsl(231, 68%, 44%)
HSV	hsv(231, 81%, 74%)
CMYK	cmyk(81%, 68.8%, 0%, 25.9%)
CIE-LAB	lab(32.20, 39.34, -70.07)
CIE-LCH	lch(32.20, 80.35, 299.31°)
OKLab	oklab(43.13% -0.0073 -0.203)
OKLCH	oklch(43.13% 0.203 267.9)
XYZ	xyz(11.4736, 7.1758, 48.9146)
Luminance	0.0718 (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

#243BBD #BDA624

analogous

#2488BD #243BBD #5924BD

triadic

#243BBD #BD243B #3BBD24

tetradic

#243BBD #BD2488 #BDA624 #24BD59

square

#243BBD #BD2488 #BDA624 #24BD59

split-complementary

#243BBD #BD5924 #88BD24

monochromatic

#101B56 #1A2B8A #243BBD #435ADB #7687E5

Accessibility & contrast

On white

8.62

#243BBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#243BBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243BBD

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243BBD	#FFFFFF	#000000	##FFFFFF
##243BBD	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0053C1

Deuteranopia (green-blind)

#0044BB

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #243bbd;
/* rgb */ color: rgb(36, 59, 189);
/* oklch */ color: oklch(43.1% 0.203 267.9);

Tailwind

colors: {
  custom: {
    50: '#7a71d2',
    500: '#243bbd',
    950: '#000000',
  },
}

SCSS

$custom: #243bbd;
$custom-light: #7a71d2;
$custom-dark: #000000;

JSON

{
  "hex": "#243bbd",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 189
  },
  "hsl": {
    "h": 230.98,
    "s": 68,
    "l": 44.118
  },
  "oklch": {
    "l": 0.43134,
    "c": 0.20312,
    "h": 267.9
  },
  "luminance": 0.07177
}

Semantic roles & 50–950 ramp

primary

#243BBD

secondary

#CCBF70

accent

#D13DEB

background

#F8F6FD

surface

#EFECFA

border

#CAC7D3

text

#0B0714

muted

#7C7A83

Preview Lab

Preview with #243BBD

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

Preview Lab → · Contrast checker → · Palette generator →