#243A4A#243A4A

#243A4A is a dark, muted cyan. Relative luminance 0.039; OKLCH L 33.7% C 0.040 H 241.0°. Best body text is #FFFFFF at 11.80:1 contrast (WCAG AA passes).

Color values

HEX	#243A4A
RGB	rgb(36, 58, 74)
HSL	hsl(205, 35%, 22%)
HSV	hsv(205, 51%, 29%)
CMYK	cmyk(51.4%, 21.6%, 0%, 71%)
CIE-LAB	lab(23.32, -3.52, -12.50)
CIE-LCH	lch(23.32, 12.99, 254.25°)
OKLab	oklab(33.75% -0.0192 -0.0347)
OKLCH	oklch(33.75% 0.04 241)
XYZ	xyz(3.4762, 3.8953, 7.0459)
Luminance	0.0390 (WCAG relative)
Temperature	cool
Family	cyan

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A4A #4A3424

analogous

#244A47 #243A4A #24274A

triadic

#243A4A #4A243A #3A4A24

tetradic

#243A4A #47244A #4A3424 #274A24

square

#243A4A #47244A #4A3424 #274A24

split-complementary

#243A4A #4A2427 #4A4724

monochromatic

#0A1015 #101A21 #243A4A #385A73 #4C7B9C

Accessibility & contrast

On white

11.80

#243A4A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.78

#243A4A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A4A

11.80:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A4A	#FFFFFF	#000000	##FFFFFF
##243A4A	1.00	11.80	1.78	11.80
#FFFFFF	11.80	1.00	21.00	1.00
#000000	1.78	21.00	1.00	21.00
##FFFFFF	11.80	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#333A4B

Deuteranopia (green-blind)

#2E364A

Tritanopia (blue-blind)

#133E3F

Achromatopsia (no color)

#383838

Design tokens & code

CSS

--color: #243a4a;
/* rgb */ color: rgb(36, 58, 74);
/* oklch */ color: oklch(33.7% 0.040 241.0);

Tailwind

colors: {
  custom: {
    50: '#61707c',
    500: '#243a4a',
    950: '#000000',
  },
}

SCSS

$custom: #243a4a;
$custom-light: #61707c;
$custom-dark: #000000;

JSON

{
  "hex": "#243a4a",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 74
  },
  "hsl": {
    "h": 205.263,
    "s": 34.545,
    "l": 21.569
  },
  "oklch": {
    "l": 0.33745,
    "c": 0.03968,
    "h": 241
  },
  "luminance": 0.03896
}

Semantic roles & 50–950 ramp

primary

#243A4A

secondary

#7D614D

accent

#8B5DCB

background

#F5F6F7

surface

#EAECEE

border

#C6C7C9

text

#050709

muted

#797A7B

Preview Lab

Preview with #243A4A

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

Preview Lab → · Contrast checker → · Palette generator →