#243A6A#243A6A

#243A6A is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.7% C 0.088 H 263.9°. Best body text is #FFFFFF at 11.12:1 contrast (WCAG AA passes).

Color values

HEX	#243A6A
RGB	rgb(36, 58, 106)
HSL	hsl(221, 49%, 28%)
HSV	hsv(221, 66%, 42%)
CMYK	cmyk(66%, 45.3%, 0%, 58.4%)
CIE-LAB	lab(25.08, 8.27, -30.68)
CIE-LCH	lch(25.08, 31.78, 285.09°)
OKLab	oklab(35.69% -0.0093 -0.0874)
OKLCH	oklch(35.69% 0.088 263.9)
XYZ	xyz(4.8412, 4.4414, 14.2350)
Luminance	0.0444 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A6A #6A5424

analogous

#245D6A #243A6A #31246A

triadic

#243A6A #6A243A #3A6A24

tetradic

#243A6A #6A245D #6A5424 #246A31

square

#243A6A #6A245D #6A5424 #246A31

split-complementary

#243A6A #6A3124 #5D6A24

monochromatic

#080C17 #14213C #243A6A #345398 #486EC1

Accessibility & contrast

On white

11.12

#243A6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.89

#243A6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A6A

11.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A6A	#FFFFFF	#000000	##FFFFFF
##243A6A	1.00	11.12	1.89	11.12
#FFFFFF	11.12	1.00	21.00	1.00
#000000	1.89	21.00	1.00	21.00
##FFFFFF	11.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#243F6C

Deuteranopia (green-blind)

#1A3969

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243a6a;
/* rgb */ color: rgb(36, 58, 106);
/* oklch */ color: oklch(35.7% 0.088 263.9);

Tailwind

colors: {
  custom: {
    50: '#666f95',
    500: '#243a6a',
    950: '#000000',
  },
}

SCSS

$custom: #243a6a;
$custom-light: #666f95;
$custom-dark: #000000;

JSON

{
  "hex": "#243a6a",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 106
  },
  "hsl": {
    "h": 221.143,
    "s": 49.296,
    "l": 27.843
  },
  "oklch": {
    "l": 0.35691,
    "c": 0.08794,
    "h": 263.9
  },
  "luminance": 0.04442
}

Semantic roles & 50–950 ramp

primary

#243A6A

secondary

#9D844D

accent

#AE4FD9

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243A6A

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

Preview Lab → · Contrast checker → · Palette generator →