#243A75#243A75

#243A75 is a dark, moderate blue. Relative luminance 0.047; OKLCH L 36.5% C 0.105 H 266.0°. Best body text is #FFFFFF at 10.84:1 contrast (WCAG AA passes).

Color values

HEX	#243A75
RGB	rgb(36, 58, 117)
HSL	hsl(224, 53%, 30%)
HSV	hsv(224, 69%, 46%)
CMYK	cmyk(69.2%, 50.4%, 0%, 54.1%)
CIE-LAB	lab(25.82, 12.56, -36.52)
CIE-LCH	lch(25.82, 38.62, 288.98°)
OKLab	oklab(36.49% -0.0073 -0.1046)
OKLCH	oklch(36.49% 0.105 266)
XYZ	xyz(5.4504, 4.6850, 17.4432)
Luminance	0.0469 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A75 #755F24

analogous

#246275 #243A75 #372475

triadic

#243A75 #75243A #3A7524

tetradic

#243A75 #752462 #755F24 #247537

square

#243A75 #752462 #755F24 #247537

split-complementary

#243A75 #753724 #627524

monochromatic

#070C17 #162346 #243A75 #3251A4 #4C6DC8

Accessibility & contrast

On white

10.84

#243A75 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.94

#243A75 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A75

10.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A75	#FFFFFF	#000000	##FFFFFF
##243A75	1.00	10.84	1.94	10.84
#FFFFFF	10.84	1.00	21.00	1.00
#000000	1.94	21.00	1.00	21.00
##FFFFFF	10.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1B4177

Deuteranopia (green-blind)

#083A74

Tritanopia (blue-blind)

#004852

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243a75;
/* rgb */ color: rgb(36, 58, 117);
/* oklch */ color: oklch(36.5% 0.105 266.0);

Tailwind

colors: {
  custom: {
    50: '#696f9d',
    500: '#243a75',
    950: '#000000',
  },
}

SCSS

$custom: #243a75;
$custom-light: #696f9d;
$custom-dark: #000000;

JSON

{
  "hex": "#243a75",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 117
  },
  "hsl": {
    "h": 223.704,
    "s": 52.941,
    "l": 30
  },
  "oklch": {
    "l": 0.36494,
    "c": 0.10489,
    "h": 266
  },
  "luminance": 0.04686
}

Semantic roles & 50–950 ramp

primary

#243A75

secondary

#A88F4D

accent

#B54BDC

background

#F6F6F9

surface

#EBECF2

border

#C6C7CC

text

#07070E

muted

#7A7A7E

Preview Lab

Preview with #243A75

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

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