#243F4E#243F4E

#243F4E is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.3% C 0.042 H 234.1°. Best body text is #FFFFFF at 11.08:1 contrast (WCAG AA passes).

Color values

HEX	#243F4E
RGB	rgb(36, 63, 78)
HSL	hsl(201, 37%, 22%)
HSV	hsv(201, 54%, 31%)
CMYK	cmyk(53.8%, 19.2%, 0%, 69.4%)
CIE-LAB	lab(25.20, -5.42, -12.27)
CIE-LCH	lch(25.20, 13.41, 246.16°)
OKLab	oklab(35.29% -0.0247 -0.034)
OKLCH	oklch(35.29% 0.042 234.1)
XYZ	xyz(3.8797, 4.4798, 7.8665)
Luminance	0.0448 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F4E #4E3324

analogous

#244E48 #243F4E #242A4E

triadic

#243F4E #4E243F #3F4E24

tetradic

#243F4E #48244E #4E3324 #2A4E24

square

#243F4E #48244E #4E3324 #2A4E24

split-complementary

#243F4E #4E242A #4E4824

monochromatic

#0A1115 #111D24 #243F4E #376178 #4B83A2

Accessibility & contrast

On white

11.08

#243F4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#243F4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F4E

11.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F4E	#FFFFFF	#000000	##FFFFFF
##243F4E	1.00	11.08	1.90	11.08
#FFFFFF	11.08	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4F

Deuteranopia (green-blind)

#323A4E

Tritanopia (blue-blind)

#0F4344

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243f4e;
/* rgb */ color: rgb(36, 63, 78);
/* oklch */ color: oklch(35.3% 0.042 234.1);

Tailwind

colors: {
  custom: {
    50: '#62747f',
    500: '#243f4e',
    950: '#000000',
  },
}

SCSS

$custom: #243f4e;
$custom-light: #62747f;
$custom-dark: #000000;

JSON

{
  "hex": "#243f4e",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 78
  },
  "hsl": {
    "h": 201.429,
    "s": 36.842,
    "l": 22.353
  },
  "oklch": {
    "l": 0.35289,
    "c": 0.04205,
    "h": 234.1
  },
  "luminance": 0.0448
}

Semantic roles & 50–950 ramp

primary

#243F4E

secondary

#815F4C

accent

#845BCD

background

#F5F7F7

surface

#EAEDEE

border

#C6C8C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #243F4E

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

Preview Lab → · Contrast checker → · Palette generator →