#243E4B#243E4B

#243E4B is a dark, muted cyan. Relative luminance 0.043; OKLCH L 34.9% C 0.039 H 231.1°. Best body text is #FFFFFF at 11.26:1 contrast (WCAG AA passes).

Color values

HEX	#243E4B
RGB	rgb(36, 62, 75)
HSL	hsl(200, 35%, 22%)
HSV	hsv(200, 52%, 29%)
CMYK	cmyk(52%, 17.3%, 0%, 70.6%)
CIE-LAB	lab(24.73, -5.79, -11.01)
CIE-LCH	lch(24.73, 12.44, 242.25°)
OKLab	oklab(34.87% -0.0246 -0.0305)
OKLCH	oklch(34.87% 0.039 231.1)
XYZ	xyz(3.7197, 4.3280, 7.2946)
Luminance	0.0433 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E4B #4B3124

analogous

#244B45 #243E4B #242B4B

triadic

#243E4B #4B243E #3E4B24

tetradic

#243E4B #45244B #4B3124 #2B4B24

square

#243E4B #45244B #4B3124 #2B4B24

split-complementary

#243E4B #4B242B #4B4524

monochromatic

#0A1115 #101C22 #243E4B #386074 #4C829E

Accessibility & contrast

On white

11.26

#243E4B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.87

#243E4B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E4B

11.26:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E4B	#FFFFFF	#000000	##FFFFFF
##243E4B	1.00	11.26	1.87	11.26
#FFFFFF	11.26	1.00	21.00	1.00
#000000	1.87	21.00	1.00	21.00
##FFFFFF	11.26	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383D4C

Deuteranopia (green-blind)

#32394B

Tritanopia (blue-blind)

#124242

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243e4b;
/* rgb */ color: rgb(36, 62, 75);
/* oklch */ color: oklch(34.9% 0.039 231.1);

Tailwind

colors: {
  custom: {
    50: '#61737d',
    500: '#243e4b',
    950: '#000000',
  },
}

SCSS

$custom: #243e4b;
$custom-light: #61737d;
$custom-dark: #000000;

JSON

{
  "hex": "#243e4b",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 75
  },
  "hsl": {
    "h": 200,
    "s": 35.135,
    "l": 21.765
  },
  "oklch": {
    "l": 0.34872,
    "c": 0.03916,
    "h": 231.1
  },
  "luminance": 0.04328
}

Semantic roles & 50–950 ramp

primary

#243E4B

secondary

#7E5D4C

accent

#815DCB

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#050809

muted

#797B7B

Preview Lab

Preview with #243E4B

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

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