#243C56#243C56

#243C56 is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.055 H 251.5°. Best body text is #FFFFFF at 11.32:1 contrast (WCAG AA passes).

Color values

HEX	#243C56
RGB	rgb(36, 60, 86)
HSL	hsl(211, 41%, 24%)
HSV	hsv(211, 58%, 34%)
CMYK	cmyk(58.1%, 30.2%, 0%, 66.3%)
CIE-LAB	lab(24.57, -0.63, -18.49)
CIE-LCH	lch(24.57, 18.50, 268.04°)
OKLab	oklab(34.92% -0.0174 -0.0519)
OKLCH	oklch(34.92% 0.055 251.5)
XYZ	xyz(4.0225, 4.2784, 9.4161)
Luminance	0.0428 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C56 #563E24

analogous

#245556 #243C56 #252456

triadic

#243C56 #56243C #3C5624

tetradic

#243C56 #562455 #563E24 #245625

square

#243C56 #562455 #563E24 #245625

split-complementary

#243C56 #562524 #555624

monochromatic

#090F16 #121E2B #243C56 #365A81 #4878AC

Accessibility & contrast

On white

11.32

#243C56 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.86

#243C56 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C56

11.32:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C56	#FFFFFF	#000000	##FFFFFF
##243C56	1.00	11.32	1.86	11.32
#FFFFFF	11.32	1.00	21.00	1.00
#000000	1.86	21.00	1.00	21.00
##FFFFFF	11.32	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#313D57

Deuteranopia (green-blind)

#2B3855

Tritanopia (blue-blind)

#074245

Achromatopsia (no color)

#3A3A3A

Design tokens & code

CSS

--color: #243c56;
/* rgb */ color: rgb(36, 60, 86);
/* oklch */ color: oklch(34.9% 0.055 251.5);

Tailwind

colors: {
  custom: {
    50: '#637185',
    500: '#243c56',
    950: '#000000',
  },
}

SCSS

$custom: #243c56;
$custom-light: #637185;
$custom-dark: #000000;

JSON

{
  "hex": "#243c56",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 86
  },
  "hsl": {
    "h": 211.2,
    "s": 40.984,
    "l": 23.922
  },
  "oklch": {
    "l": 0.34919,
    "c": 0.05473,
    "h": 251.5
  },
  "luminance": 0.04279
}

Semantic roles & 50–950 ramp

primary

#243C56

secondary

#8A6C4C

accent

#9657D1

background

#F6F6F8

surface

#EBECEF

border

#C6C7CA

text

#05070B

muted

#7A7A7C

Preview Lab

Preview with #243C56

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

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