#243D75#243D75

#243D75 is a dark, moderate blue. Relative luminance 0.050; OKLCH L 37.2% C 0.101 H 264.0°. Best body text is #FFFFFF at 10.50:1 contrast (WCAG AA passes).

Color values

HEX	#243D75
RGB	rgb(36, 61, 117)
HSL	hsl(221, 53%, 30%)
HSV	hsv(221, 69%, 46%)
CMYK	cmyk(69.2%, 47.9%, 0%, 54.1%)
CIE-LAB	lab(26.72, 10.47, -35.07)
CIE-LCH	lch(26.72, 36.60, 286.63°)
OKLab	oklab(37.19% -0.0105 -0.1003)
OKLCH	oklch(37.19% 0.101 264)
XYZ	xyz(5.6061, 4.9964, 17.4951)
Luminance	0.0500 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D75 #755C24

analogous

#246675 #243D75 #332475

triadic

#243D75 #75243D #3D7524

tetradic

#243D75 #752466 #755C24 #247533

square

#243D75 #752466 #755C24 #247533

split-complementary

#243D75 #753324 #667524

monochromatic

#070C17 #162546 #243D75 #3255A4 #4C72C8

Accessibility & contrast

On white

10.50

#243D75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.00

#243D75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D75

10.50:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D75	#FFFFFF	#000000	##FFFFFF
##243D75	1.00	10.50	2.00	10.50
#FFFFFF	10.50	1.00	21.00	1.00
#000000	2.00	21.00	1.00	21.00
##FFFFFF	10.50	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#214377

Deuteranopia (green-blind)

#123C74

Tritanopia (blue-blind)

#004A53

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243d75;
/* rgb */ color: rgb(36, 61, 117);
/* oklch */ color: oklch(37.2% 0.101 264.0);

Tailwind

colors: {
  custom: {
    50: '#69729d',
    500: '#243d75',
    950: '#000000',
  },
}

SCSS

$custom: #243d75;
$custom-light: #69729d;
$custom-dark: #000000;

JSON

{
  "hex": "#243d75",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 117
  },
  "hsl": {
    "h": 221.481,
    "s": 52.941,
    "l": 30
  },
  "oklch": {
    "l": 0.37188,
    "c": 0.10084,
    "h": 264
  },
  "luminance": 0.04997
}

Semantic roles & 50–950 ramp

primary

#243D75

secondary

#A88C4D

accent

#B04BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243D75

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

Preview Lab → · Contrast checker → · Palette generator →