#243D90#243D90

#243D90 is a dark, vivid blue. Relative luminance 0.057; OKLCH L 39.3% C 0.141 H 267.0°. Best body text is #FFFFFF at 9.79:1 contrast (WCAG AA passes).

Color values

HEX	#243D90
RGB	rgb(36, 61, 144)
HSL	hsl(226, 60%, 35%)
HSV	hsv(226, 75%, 56%)
CMYK	cmyk(75%, 57.6%, 0%, 43.5%)
CIE-LAB	lab(28.71, 21.07, -48.71)
CIE-LCH	lch(28.71, 53.07, 293.39°)
OKLab	oklab(39.32% -0.0075 -0.1404)
OKLCH	oklch(39.32% 0.141 267)
XYZ	xyz(7.4286, 5.7254, 27.0938)
Luminance	0.0573 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D90 #907724

analogous

#247390 #243D90 #412490

triadic

#243D90 #90243D #3D9024

tetradic

#243D90 #902473 #907724 #249041

square

#243D90 #902473 #907724 #249041

split-complementary

#243D90 #904124 #739024

monochromatic

#0C142E #18285F #243D90 #3052C1 #5976D5

Accessibility & contrast

On white

9.79

#243D90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.15

#243D90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D90

9.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D90	#FFFFFF	#000000	##FFFFFF
##243D90	1.00	9.79	2.15	9.79
#FFFFFF	9.79	1.00	21.00	1.00
#000000	2.15	21.00	1.00	21.00
##FFFFFF	9.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004993

Deuteranopia (green-blind)

#003F8E

Tritanopia (blue-blind)

#005160

Achromatopsia (no color)

#444444

Design tokens & code

CSS

--color: #243d90;
/* rgb */ color: rgb(36, 61, 144);
/* oklch */ color: oklch(39.3% 0.141 267.0);

Tailwind

colors: {
  custom: {
    50: '#6f72b1',
    500: '#243d90',
    950: '#000000',
  },
}

SCSS

$custom: #243d90;
$custom-light: #6f72b1;
$custom-dark: #000000;

JSON

{
  "hex": "#243d90",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 144
  },
  "hsl": {
    "h": 226.111,
    "s": 60,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39325,
    "c": 0.14064,
    "h": 267
  },
  "luminance": 0.05726
}

Semantic roles & 50–950 ramp

primary

#243D90

secondary

#BAA356

accent

#BE45E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080711

muted

#7B7A80

Preview Lab

Preview with #243D90

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

Preview Lab → · Contrast checker → · Palette generator →