#243D98#243D98

#243D98 is a dark, vivid blue. Relative luminance 0.060; OKLCH L 40.0% C 0.152 H 267.3°. Best body text is #FFFFFF at 9.56:1 contrast (WCAG AA passes).

Color values

HEX	#243D98
RGB	rgb(36, 61, 152)
HSL	hsl(227, 62%, 37%)
HSV	hsv(227, 76%, 60%)
CMYK	cmyk(76.3%, 59.9%, 0%, 40.4%)
CIE-LAB	lab(29.36, 24.17, -52.55)
CIE-LCH	lch(29.36, 57.85, 294.70°)
OKLab	oklab(40.02% -0.0072 -0.1517)
OKLCH	oklch(40.02% 0.152 267.3)
XYZ	xyz(8.0618, 5.9787, 30.4288)
Luminance	0.0598 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D98 #987F24

analogous

#247798 #243D98 #452498

triadic

#243D98 #98243D #3D9824

tetradic

#243D98 #982477 #987F24 #249845

square

#243D98 #982477 #987F24 #249845

split-complementary

#243D98 #984524 #779824

monochromatic

#0D1535 #182967 #243D98 #3051C9 #5E78D9

Accessibility & contrast

On white

9.56

#243D98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.20

#243D98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D98

9.56:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D98	#FFFFFF	#000000	##FFFFFF
##243D98	1.00	9.56	2.20	9.56
#FFFFFF	9.56	1.00	21.00	1.00
#000000	2.20	21.00	1.00	21.00
##FFFFFF	9.56	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004B9B

Deuteranopia (green-blind)

#004096

Tritanopia (blue-blind)

#005464

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #243d98;
/* rgb */ color: rgb(36, 61, 152);
/* oklch */ color: oklch(40.0% 0.152 267.3);

Tailwind

colors: {
  custom: {
    50: '#7172b7',
    500: '#243d98',
    950: '#000000',
  },
}

SCSS

$custom: #243d98;
$custom-light: #7172b7;
$custom-dark: #000000;

JSON

{
  "hex": "#243d98",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 152
  },
  "hsl": {
    "h": 227.069,
    "s": 61.702,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40016,
    "c": 0.1519,
    "h": 267.3
  },
  "luminance": 0.0598
}

Semantic roles & 50–950 ramp

primary

#243D98

secondary

#BEA85A

accent

#C243E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090711

muted

#7B7A80

Preview Lab

Preview with #243D98

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

Preview Lab → · Contrast checker → · Palette generator →