#243F57#243F57

#243F57 is a dark, muted cyan. Relative luminance 0.046; OKLCH L 35.8% C 0.053 H 246.8°. Best body text is #FFFFFF at 10.92:1 contrast (WCAG AA passes).

Color values

HEX	#243F57
RGB	rgb(36, 63, 87)
HSL	hsl(208, 41%, 24%)
HSV	hsv(208, 59%, 34%)
CMYK	cmyk(58.6%, 27.6%, 0%, 65.9%)
CIE-LAB	lab(25.62, -2.27, -17.52)
CIE-LCH	lch(25.62, 17.67, 262.62°)
OKLab	oklab(35.76% -0.0211 -0.0491)
OKLCH	oklch(35.76% 0.053 246.8)
XYZ	xyz(4.2247, 4.6179, 9.6837)
Luminance	0.0462 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F57 #573C24

analogous

#245756 #243F57 #242657

triadic

#243F57 #57243F #3F5724

tetradic

#243F57 #562457 #573C24 #265724

square

#243F57 #562457 #573C24 #265724

split-complementary

#243F57 #572426 #575624

monochromatic

#091016 #12202C #243F57 #365E82 #487EAE

Accessibility & contrast

On white

10.92

#243F57 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.92

#243F57 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F57

10.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F57	#FFFFFF	#000000	##FFFFFF
##243F57	1.00	10.92	1.92	10.92
#FFFFFF	10.92	1.00	21.00	1.00
#000000	1.92	21.00	1.00	21.00
##FFFFFF	10.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#354058

Deuteranopia (green-blind)

#2E3A57

Tritanopia (blue-blind)

#044547

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243f57;
/* rgb */ color: rgb(36, 63, 87);
/* oklch */ color: oklch(35.8% 0.053 246.8);

Tailwind

colors: {
  custom: {
    50: '#637386',
    500: '#243f57',
    950: '#000000',
  },
}

SCSS

$custom: #243f57;
$custom-light: #637386;
$custom-dark: #000000;

JSON

{
  "hex": "#243f57",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 87
  },
  "hsl": {
    "h": 208.235,
    "s": 41.463,
    "l": 24.118
  },
  "oklch": {
    "l": 0.35758,
    "c": 0.05341,
    "h": 246.8
  },
  "luminance": 0.04618
}

Semantic roles & 50–950 ramp

primary

#243F57

secondary

#8B6A4C

accent

#9057D1

background

#F6F7F8

surface

#EBEDEF

border

#C6C8CA

text

#05080B

muted

#7A7B7C

Preview Lab

Preview with #243F57

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

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