#243D5D#243D5D

#243D5D is a dark, moderate cyan. Relative luminance 0.045; OKLCH L 35.6% C 0.064 H 255.2°. Best body text is #FFFFFF at 11.05:1 contrast (WCAG AA passes).

Color values

HEX	#243D5D
RGB	rgb(36, 61, 93)
HSL	hsl(214, 44%, 25%)
HSV	hsv(214, 61%, 36%)
CMYK	cmyk(61.3%, 34.4%, 0%, 63.5%)
CIE-LAB	lab(25.27, 1.26, -21.98)
CIE-LCH	lch(25.27, 22.01, 273.29°)
OKLab	oklab(35.59% -0.0164 -0.062)
OKLCH	oklch(35.59% 0.064 255.2)
XYZ	xyz(4.3714, 4.5025, 10.9925)
Luminance	0.0450 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D5D #5D4424

analogous

#24595D #243D5D #27245D

triadic

#243D5D #5D243D #3D5D24

tetradic

#243D5D #5D2459 #5D4424 #245D27

square

#243D5D #5D2459 #5D4424 #245D27

split-complementary

#243D5D #5D2724 #595D24

monochromatic

#090E16 #132031 #243D5D #355A89 #4677B5

Accessibility & contrast

On white

11.05

#243D5D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.90

#243D5D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D5D

11.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D5D	#FFFFFF	#000000	##FFFFFF
##243D5D	1.00	11.05	1.90	11.05
#FFFFFF	11.05	1.00	21.00	1.00
#000000	1.90	21.00	1.00	21.00
##FFFFFF	11.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#303F5E

Deuteranopia (green-blind)

#28395C

Tritanopia (blue-blind)

#004448

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243d5d;
/* rgb */ color: rgb(36, 61, 93);
/* oklch */ color: oklch(35.6% 0.064 255.2);

Tailwind

colors: {
  custom: {
    50: '#64728b',
    500: '#243d5d',
    950: '#000000',
  },
}

SCSS

$custom: #243d5d;
$custom-light: #64728b;
$custom-dark: #000000;

JSON

{
  "hex": "#243d5d",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 93
  },
  "hsl": {
    "h": 213.684,
    "s": 44.186,
    "l": 25.294
  },
  "oklch": {
    "l": 0.35586,
    "c": 0.06411,
    "h": 255.2
  },
  "luminance": 0.04503
}

Semantic roles & 50–950 ramp

primary

#243D5D

secondary

#91734C

accent

#9C54D4

background

#F6F6F8

surface

#EBECF0

border

#C6C7CB

text

#06070C

muted

#7A7A7D

Preview Lab

Preview with #243D5D

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

Preview Lab → · Contrast checker → · Palette generator →