#243F4D#243F4D

#243F4D is a dark, muted cyan. Relative luminance 0.045; OKLCH L 35.2% C 0.041 H 232.2°. Best body text is #FFFFFF at 11.09:1 contrast (WCAG AA passes).

Color values

HEX	#243F4D
RGB	rgb(36, 63, 77)
HSL	hsl(200, 36%, 22%)
HSV	hsv(200, 53%, 30%)
CMYK	cmyk(53.2%, 18.2%, 0%, 69.8%)
CIE-LAB	lab(25.15, -5.76, -11.68)
CIE-LCH	lch(25.15, 13.02, 243.73°)
OKLab	oklab(35.24% -0.0251 -0.0324)
OKLCH	oklch(35.24% 0.041 232.2)
XYZ	xyz(3.8441, 4.4656, 7.6791)
Luminance	0.0447 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F4D #4D3224

analogous

#244D47 #243F4D #242B4D

triadic

#243F4D #4D243F #3F4D24

tetradic

#243F4D #47244D #4D3224 #2B4D24

square

#243F4D #47244D #4D3224 #2B4D24

split-complementary

#243F4D #4D242B #4D4724

monochromatic

#0A1115 #111D23 #243F4D #376177 #4B83A0

Accessibility & contrast

On white

11.09

#243F4D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#243F4D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F4D

11.09:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F4D	#FFFFFF	#000000	##FFFFFF
##243F4D	1.00	11.09	1.89	11.09
#FFFFFF	11.09	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.09	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#383E4E

Deuteranopia (green-blind)

#323A4D

Tritanopia (blue-blind)

#104344

Achromatopsia (no color)

#3C3C3C

Design tokens & code

CSS

--color: #243f4d;
/* rgb */ color: rgb(36, 63, 77);
/* oklch */ color: oklch(35.2% 0.041 232.2);

Tailwind

colors: {
  custom: {
    50: '#62747e',
    500: '#243f4d',
    950: '#000000',
  },
}

SCSS

$custom: #243f4d;
$custom-light: #62747e;
$custom-dark: #000000;

JSON

{
  "hex": "#243f4d",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 77
  },
  "hsl": {
    "h": 200.488,
    "s": 36.283,
    "l": 22.157
  },
  "oklch": {
    "l": 0.3524,
    "c": 0.04097,
    "h": 232.2
  },
  "luminance": 0.04466
}

Semantic roles & 50–950 ramp

primary

#243F4D

secondary

#805E4C

accent

#825CCC

background

#F5F7F7

surface

#EAEDEE

border

#C6C8C9

text

#05080A

muted

#797B7C

Preview Lab

Preview with #243F4D

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

Preview Lab → · Contrast checker → · Palette generator →