#243C4E#243C4E

#243C4E is a dark, muted cyan. Relative luminance 0.042; OKLCH L 34.5% C 0.044 H 242.0°. Best body text is #FFFFFF at 11.47:1 contrast (WCAG AA passes).

Color values

HEX	#243C4E
RGB	rgb(36, 60, 78)
HSL	hsl(206, 37%, 22%)
HSV	hsv(206, 54%, 31%)
CMYK	cmyk(53.8%, 23.1%, 0%, 69.4%)
CIE-LAB	lab(24.18, -3.47, -13.83)
CIE-LCH	lch(24.18, 14.26, 255.92°)
OKLab	oklab(34.49% -0.0205 -0.0385)
OKLCH	oklch(34.49% 0.044 242)
XYZ	xyz(3.7181, 4.1566, 7.8126)
Luminance	0.0416 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C4E #4E3624

analogous

#244E4B #243C4E #24274E

triadic

#243C4E #4E243C #3C4E24

tetradic

#243C4E #4B244E #4E3624 #274E24

square

#243C4E #4B244E #4E3624 #274E24

split-complementary

#243C4E #4E2427 #4E4B24

monochromatic

#0A1015 #111C24 #243C4E #375C78 #4B7CA2

Accessibility & contrast

On white

11.47

#243C4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.83

#243C4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C4E

11.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C4E	#FFFFFF	#000000	##FFFFFF
##243C4E	1.00	11.47	1.83	11.47
#FFFFFF	11.47	1.00	21.00	1.00
#000000	1.83	21.00	1.00	21.00
##FFFFFF	11.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#343C4F

Deuteranopia (green-blind)

#2F384E

Tritanopia (blue-blind)

#104042

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #243c4e;
/* rgb */ color: rgb(36, 60, 78);
/* oklch */ color: oklch(34.5% 0.044 242.0);

Tailwind

colors: {
  custom: {
    50: '#62717f',
    500: '#243c4e',
    950: '#000000',
  },
}

SCSS

$custom: #243c4e;
$custom-light: #62717f;
$custom-dark: #000000;

JSON

{
  "hex": "#243c4e",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 78
  },
  "hsl": {
    "h": 205.714,
    "s": 36.842,
    "l": 22.353
  },
  "oklch": {
    "l": 0.34485,
    "c": 0.04359,
    "h": 242
  },
  "luminance": 0.04157
}

Semantic roles & 50–950 ramp

primary

#243C4E

secondary

#81634C

accent

#8C5BCD

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #243C4E

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

Preview Lab → · Contrast checker → · Palette generator →