#243BAE#243BAE

#243BAE is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.7% C 0.184 H 268.0°. Best body text is #FFFFFF at 9.08:1 contrast (WCAG AA passes).

Color values

HEX	#243BAE
RGB	rgb(36, 59, 174)
HSL	hsl(230, 66%, 41%)
HSV	hsv(230, 79%, 68%)
CMYK	cmyk(79.3%, 66.1%, 0%, 31.8%)
CIE-LAB	lab(30.78, 33.85, -63.51)
CIE-LCH	lch(30.78, 71.97, 298.06°)
OKLab	oklab(41.66% -0.0063 -0.1839)
OKLCH	oklch(41.66% 0.184 268)
XYZ	xyz(9.9288, 6.5579, 40.7787)
Luminance	0.0656 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243BAE #AE9724

analogous

#2480AE #243BAE #5224AE

triadic

#243BAE #AE243B #3BAE24

tetradic

#243BAE #AE2480 #AE9724 #24AE52

square

#243BAE #AE2480 #AE9724 #24AE52

split-complementary

#243BAE #AE5224 #80AE24

monochromatic

#0F1949 #1A2A7B #243BAE #3953D6 #6C7FE1

Accessibility & contrast

On white

9.08

#243BAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.31

#243BAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243BAE

9.08:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243BAE	#FFFFFF	#000000	##FFFFFF
##243BAE	1.00	9.08	2.31	9.08
#FFFFFF	9.08	1.00	21.00	1.00
#000000	2.31	21.00	1.00	21.00
##FFFFFF	9.08	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FB2

Deuteranopia (green-blind)

#0042AC

Tritanopia (blue-blind)

#005A6F

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #243bae;
/* rgb */ color: rgb(36, 59, 174);
/* oklch */ color: oklch(41.7% 0.184 268.0);

Tailwind

colors: {
  custom: {
    50: '#7671c7',
    500: '#243bae',
    950: '#000000',
  },
}

SCSS

$custom: #243bae;
$custom-light: #7671c7;
$custom-dark: #000000;

JSON

{
  "hex": "#243bae",
  "rgb": {
    "r": 36,
    "g": 59,
    "b": 174
  },
  "hsl": {
    "h": 230,
    "s": 65.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.41662,
    "c": 0.18396,
    "h": 268
  },
  "luminance": 0.06559
}

Semantic roles & 50–950 ramp

primary

#243BAE

secondary

#C7B767

accent

#CC3FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0713

muted

#7C7A82

Preview Lab

Preview with #243BAE

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

Preview Lab → · Contrast checker → · Palette generator →