#243A4E#243A4E

#243A4E is a dark, muted cyan. Relative luminance 0.040; OKLCH L 34.0% C 0.045 H 247.0°. Best body text is #FFFFFF at 11.73:1 contrast (WCAG AA passes).

Color values

HEX	#243A4E
RGB	rgb(36, 58, 78)
HSL	hsl(209, 37%, 22%)
HSV	hsv(209, 54%, 31%)
CMYK	cmyk(53.8%, 25.6%, 0%, 69.4%)
CIE-LAB	lab(23.51, -2.14, -14.87)
CIE-LCH	lch(23.51, 15.02, 261.80°)
OKLab	oklab(33.95% -0.0176 -0.0415)
OKLCH	oklch(33.95% 0.045 247)
XYZ	xyz(3.6153, 3.9510, 7.7784)
Luminance	0.0395 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A4E #4E3824

analogous

#244E4D #243A4E #24254E

triadic

#243A4E #4E243A #3A4E24

tetradic

#243A4E #4D244E #4E3824 #254E24

square

#243A4E #4D244E #4E3824 #254E24

split-complementary

#243A4E #4E2425 #4E4D24

monochromatic

#0A1015 #111B24 #243A4E #375978 #4B78A2

Accessibility & contrast

On white

11.73

#243A4E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.79

#243A4E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A4E

11.73:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A4E	#FFFFFF	#000000	##FFFFFF
##243A4E	1.00	11.73	1.79	11.73
#FFFFFF	11.73	1.00	21.00	1.00
#000000	1.79	21.00	1.00	21.00
##FFFFFF	11.73	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323A4F

Deuteranopia (green-blind)

#2C364E

Tritanopia (blue-blind)

#103F41

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #243a4e;
/* rgb */ color: rgb(36, 58, 78);
/* oklch */ color: oklch(34.0% 0.045 247.0);

Tailwind

colors: {
  custom: {
    50: '#62707f',
    500: '#243a4e',
    950: '#000000',
  },
}

SCSS

$custom: #243a4e;
$custom-light: #62707f;
$custom-dark: #000000;

JSON

{
  "hex": "#243a4e",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 78
  },
  "hsl": {
    "h": 208.571,
    "s": 36.842,
    "l": 22.353
  },
  "oklch": {
    "l": 0.33953,
    "c": 0.04506,
    "h": 247
  },
  "luminance": 0.03951
}

Semantic roles & 50–950 ramp

primary

#243A4E

secondary

#81664C

accent

#915BCD

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#05070A

muted

#797A7C

Preview Lab

Preview with #243A4E

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

Preview Lab → · Contrast checker → · Palette generator →