#243D55#243D55

#243D55 is a dark, muted cyan. Relative luminance 0.044; OKLCH L 35.1% C 0.052 H 248.6°. Best body text is #FFFFFF at 11.21:1 contrast (WCAG AA passes).

Color values

HEX	#243D55
RGB	rgb(36, 61, 85)
HSL	hsl(209, 40%, 24%)
HSV	hsv(209, 58%, 33%)
CMYK	cmyk(57.6%, 28.2%, 0%, 66.7%)
CIE-LAB	lab(24.85, -1.66, -17.40)
CIE-LCH	lch(24.85, 17.48, 264.55°)
OKLab	oklab(35.12% -0.0191 -0.0487)
OKLCH	oklch(35.12% 0.052 248.6)
XYZ	xyz(4.0354, 4.3681, 9.2230)
Luminance	0.0437 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D55 #553C24

analogous

#245554 #243D55 #242455

triadic

#243D55 #55243D #3D5524

tetradic

#243D55 #542455 #553C24 #245524

square

#243D55 #542455 #553C24 #245524

split-complementary

#243D55 #552424 #555424

monochromatic

#090F15 #121E2A #243D55 #365C80 #487BAB

Accessibility & contrast

On white

11.21

#243D55 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#243D55 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D55

11.21:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D55	#FFFFFF	#000000	##FFFFFF
##243D55	1.00	11.21	1.87	11.21
#FFFFFF	11.21	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.21	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333E56

Deuteranopia (green-blind)

#2D3955

Tritanopia (blue-blind)

#084345

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243d55;
/* rgb */ color: rgb(36, 61, 85);
/* oklch */ color: oklch(35.1% 0.052 248.6);

Tailwind

colors: {
  custom: {
    50: '#637285',
    500: '#243d55',
    950: '#000000',
  },
}

SCSS

$custom: #243d55;
$custom-light: #637285;
$custom-dark: #000000;

JSON

{
  "hex": "#243d55",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 85
  },
  "hsl": {
    "h": 209.388,
    "s": 40.496,
    "l": 23.725
  },
  "oklch": {
    "l": 0.35124,
    "c": 0.05235,
    "h": 248.6
  },
  "luminance": 0.04368
}

Semantic roles & 50–950 ramp

primary

#243D55

secondary

#896A4C

accent

#9357D0

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #243D55

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

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