#243D6A#243D6A

#243D6A is a dark, moderate blue. Relative luminance 0.048; OKLCH L 36.4% C 0.084 H 261.3°. Best body text is #FFFFFF at 10.77:1 contrast (WCAG AA passes).

Color values

HEX	#243D6A
RGB	rgb(36, 61, 106)
HSL	hsl(219, 49%, 28%)
HSV	hsv(219, 66%, 42%)
CMYK	cmyk(66%, 42.5%, 0%, 58.4%)
CIE-LAB	lab(26.02, 6.20, -29.18)
CIE-LCH	lch(26.02, 29.84, 281.98°)
OKLab	oklab(36.42% -0.0127 -0.083)
OKLCH	oklch(36.42% 0.084 261.3)
XYZ	xyz(4.9969, 4.7527, 14.2869)
Luminance	0.0475 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243D6A #6A5124

analogous

#24606A #243D6A #2E246A

triadic

#243D6A #6A243D #3D6A24

tetradic

#243D6A #6A2460 #6A5124 #246A2E

square

#243D6A #6A2460 #6A5124 #246A2E

split-complementary

#243D6A #6A2E24 #606A24

monochromatic

#080D17 #14233C #243D6A #345798 #4873C1

Accessibility & contrast

On white

10.77

#243D6A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.95

#243D6A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243D6A

10.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243D6A	#FFFFFF	#000000	##FFFFFF
##243D6A	1.00	10.77	1.95	10.77
#FFFFFF	10.77	1.00	21.00	1.00
#000000	1.95	21.00	1.00	21.00
##FFFFFF	10.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#29416C

Deuteranopia (green-blind)

#1F3B69

Tritanopia (blue-blind)

#00474E

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243d6a;
/* rgb */ color: rgb(36, 61, 106);
/* oklch */ color: oklch(36.4% 0.084 261.3);

Tailwind

colors: {
  custom: {
    50: '#667295',
    500: '#243d6a',
    950: '#000000',
  },
}

SCSS

$custom: #243d6a;
$custom-light: #667295;
$custom-dark: #000000;

JSON

{
  "hex": "#243d6a",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 106
  },
  "hsl": {
    "h": 218.571,
    "s": 49.296,
    "l": 27.843
  },
  "oklch": {
    "l": 0.36415,
    "c": 0.084,
    "h": 261.3
  },
  "luminance": 0.04753
}

Semantic roles & 50–950 ramp

primary

#243D6A

secondary

#9D804D

accent

#A84FD9

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243D6A

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

Preview Lab → · Contrast checker → · Palette generator →