#243C69#243C69

#243C69 is a dark, moderate blue. Relative luminance 0.046; OKLCH L 36.1% C 0.084 H 261.9°. Best body text is #FFFFFF at 10.91:1 contrast (WCAG AA passes).

Color values

HEX	#243C69
RGB	rgb(36, 60, 105)
HSL	hsl(219, 49%, 28%)
HSV	hsv(219, 66%, 41%)
CMYK	cmyk(65.7%, 42.9%, 0%, 58.8%)
CIE-LAB	lab(25.64, 6.50, -29.14)
CIE-LCH	lch(25.64, 29.86, 282.57°)
OKLab	oklab(36.1% -0.0118 -0.0829)
OKLCH	oklch(36.1% 0.084 261.9)
XYZ	xyz(4.8923, 4.6263, 13.9970)
Luminance	0.0463 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243C69 #695124

analogous

#245F69 #243C69 #2E2469

triadic

#243C69 #69243C #3C6924

tetradic

#243C69 #69245F #695124 #24692E

square

#243C69 #69245F #695124 #24692E

split-complementary

#243C69 #692E24 #5F6924

monochromatic

#080D17 #14223B #243C69 #345697 #4771C0

Accessibility & contrast

On white

10.91

#243C69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#243C69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243C69

10.91:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243C69	#FFFFFF	#000000	##FFFFFF
##243C69	1.00	10.91	1.93	10.91
#FFFFFF	10.91	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.91	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#28406B

Deuteranopia (green-blind)

#1E3A68

Tritanopia (blue-blind)

#00464D

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243c69;
/* rgb */ color: rgb(36, 60, 105);
/* oklch */ color: oklch(36.1% 0.084 261.9);

Tailwind

colors: {
  custom: {
    50: '#667194',
    500: '#243c69',
    950: '#000000',
  },
}

SCSS

$custom: #243c69;
$custom-light: #667194;
$custom-dark: #000000;

JSON

{
  "hex": "#243c69",
  "rgb": {
    "r": 36,
    "g": 60,
    "b": 105
  },
  "hsl": {
    "h": 219.13,
    "s": 48.936,
    "l": 27.647
  },
  "oklch": {
    "l": 0.36104,
    "c": 0.08375,
    "h": 261.9
  },
  "luminance": 0.04627
}

Semantic roles & 50–950 ramp

primary

#243C69

secondary

#9C814D

accent

#A94FD8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243C69

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

Preview Lab → · Contrast checker → · Palette generator →