#243B52#243B52

#243B52 is a dark, muted cyan. Relative luminance 0.041; OKLCH L 34.4% C 0.050 H 249.5°. Best body text is #FFFFFF at 11.52:1 contrast (WCAG AA passes).

Color values

HEX	#243B52
RGB	rgb(36, 59, 82)
HSL	hsl(210, 39%, 23%)
HSV	hsv(210, 56%, 32%)
CMYK	cmyk(56.1%, 28%, 0%, 67.8%)
CIE-LAB	lab(24.04, -1.40, -16.69)
CIE-LCH	lch(24.04, 16.75, 265.21°)
OKLab	oklab(34.43% -0.0175 -0.0467)
OKLCH	oklch(34.43% 0.05 249.5)
XYZ	xyz(3.8140, 4.1119, 8.5737)
Luminance	0.0411 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243B52 #523B24

analogous

#245252 #243B52 #242452

triadic

#243B52 #52243B #3B5224

tetradic

#243B52 #522452 #523B24 #245224

square

#243B52 #522452 #523B24 #245224

split-complementary

#243B52 #522424 #525224

monochromatic

#090F15 #111C27 #243B52 #375A7D #4978A7

Accessibility & contrast

On white

11.52

#243B52 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.82

#243B52 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243B52

11.52:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243B52	#FFFFFF	#000000	##FFFFFF
##243B52	1.00	11.52	1.82	11.52
#FFFFFF	11.52	1.00	21.00	1.00
#000000	1.82	21.00	1.00	21.00
##FFFFFF	11.52	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#323C53

Deuteranopia (green-blind)

#2C3752

Tritanopia (blue-blind)

#0C4043

Achromatopsia (no color)

#393939

Design tokens & code

CSS

--color: #243b52;
/* rgb */ color: rgb(36, 59, 82);
/* oklch */ color: oklch(34.4% 0.050 249.5);

Tailwind

colors: {
  custom: {
    50: '#627082',
    500: '#243b52',
    950: '#000000',
  },
}

SCSS

$custom: #243b52;
$custom-light: #627082;
$custom-dark: #000000;

JSON

{
  "hex": "#243b52",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 82
  },
  "hsl": {
    "h": 210,
    "s": 38.983,
    "l": 23.137
  },
  "oklch": {
    "l": 0.34434,
    "c": 0.04987,
    "h": 249.5
  },
  "luminance": 0.04112
}

Semantic roles & 50–950 ramp

primary

#243B52

secondary

#86694C

accent

#9459CF

background

#F5F6F8

surface

#EAECEF

border

#C6C7CA

text

#05070A

muted

#797A7C

Preview Lab

Preview with #243B52

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

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