#243A69#243A69

#243A69 is a dark, moderate blue. Relative luminance 0.044; OKLCH L 35.6% C 0.086 H 263.7°. Best body text is #FFFFFF at 11.15:1 contrast (WCAG AA passes).

Color values

HEX	#243A69
RGB	rgb(36, 58, 105)
HSL	hsl(221, 49%, 28%)
HSV	hsv(221, 66%, 41%)
CMYK	cmyk(65.7%, 44.8%, 0%, 58.8%)
CIE-LAB	lab(25.02, 7.89, -30.14)
CIE-LCH	lch(25.02, 31.15, 284.66°)
OKLab	oklab(35.62% -0.0095 -0.0859)
OKLCH	oklch(35.62% 0.086 263.7)
XYZ	xyz(4.7895, 4.4207, 13.9627)
Luminance	0.0442 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243A69 #695324

analogous

#245C69 #243A69 #312469

triadic

#243A69 #69243A #3A6924

tetradic

#243A69 #69245C #695324 #246931

square

#243A69 #69245C #695324 #246931

split-complementary

#243A69 #693124 #5C6924

monochromatic

#080D17 #14213B #243A69 #345397 #476EC0

Accessibility & contrast

On white

11.15

#243A69 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.88

#243A69 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243A69

11.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243A69	#FFFFFF	#000000	##FFFFFF
##243A69	1.00	11.15	1.88	11.15
#FFFFFF	11.15	1.00	21.00	1.00
#000000	1.88	21.00	1.00	21.00
##FFFFFF	11.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#253F6B

Deuteranopia (green-blind)

#1B3868

Tritanopia (blue-blind)

#00454C

Achromatopsia (no color)

#3B3B3B

Design tokens & code

CSS

--color: #243a69;
/* rgb */ color: rgb(36, 58, 105);
/* oklch */ color: oklch(35.6% 0.086 263.7);

Tailwind

colors: {
  custom: {
    50: '#666f94',
    500: '#243a69',
    950: '#000000',
  },
}

SCSS

$custom: #243a69;
$custom-light: #666f94;
$custom-dark: #000000;

JSON

{
  "hex": "#243a69",
  "rgb": {
    "r": 36,
    "g": 58,
    "b": 105
  },
  "hsl": {
    "h": 220.87,
    "s": 48.936,
    "l": 27.647
  },
  "oklch": {
    "l": 0.35621,
    "c": 0.08638,
    "h": 263.7
  },
  "luminance": 0.04421
}

Semantic roles & 50–950 ramp

primary

#243A69

secondary

#9C834D

accent

#AD4FD8

background

#F6F6F9

surface

#EBECF1

border

#C6C7CB

text

#06070D

muted

#7A7A7E

Preview Lab

Preview with #243A69

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

Preview Lab → · Contrast checker → · Palette generator →