#243DAE#243DAE

#243DAE is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.0% C 0.182 H 267.7°. Best body text is #FFFFFF at 8.92:1 contrast (WCAG AA passes).

Color values

HEX	#243DAE
RGB	rgb(36, 61, 174)
HSL	hsl(229, 66%, 41%)
HSV	hsv(229, 79%, 68%)
CMYK	cmyk(79.3%, 64.9%, 0%, 31.8%)
CIE-LAB	lab(31.27, 32.55, -62.70)
CIE-LCH	lch(31.27, 70.65, 297.44°)
OKLab	oklab(42.02% -0.0074 -0.1815)
OKLCH	oklch(42.02% 0.182 267.7)
XYZ	xyz(10.0336, 6.7674, 40.8136)
Luminance	0.0677 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243DAE #AE9524

analogous

#2482AE #243DAE #5024AE

triadic

#243DAE #AE243D #3DAE24

tetradic

#243DAE #AE2482 #AE9524 #24AE50

square

#243DAE #AE2482 #AE9524 #24AE50

split-complementary

#243DAE #AE5024 #82AE24

monochromatic

#0F1949 #1A2B7B #243DAE #3956D6 #6C81E1

Accessibility & contrast

On white

8.92

#243DAE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.35

#243DAE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243DAE

8.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243DAE	#FFFFFF	#000000	##FFFFFF
##243DAE	1.00	8.92	2.35	8.92
#FFFFFF	8.92	1.00	21.00	1.00
#000000	2.35	21.00	1.00	21.00
##FFFFFF	8.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B2

Deuteranopia (green-blind)

#0043AC

Tritanopia (blue-blind)

#005B70

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #243dae;
/* rgb */ color: rgb(36, 61, 174);
/* oklch */ color: oklch(42.0% 0.182 267.7);

Tailwind

colors: {
  custom: {
    50: '#7672c7',
    500: '#243dae',
    950: '#000000',
  },
}

SCSS

$custom: #243dae;
$custom-light: #7672c7;
$custom-dark: #000000;

JSON

{
  "hex": "#243dae",
  "rgb": {
    "r": 36,
    "g": 61,
    "b": 174
  },
  "hsl": {
    "h": 229.13,
    "s": 65.714,
    "l": 41.176
  },
  "oklch": {
    "l": 0.42024,
    "c": 0.18162,
    "h": 267.7
  },
  "luminance": 0.06769
}

Semantic roles & 50–950 ramp

primary

#243DAE

secondary

#C7B567

accent

#CA3FE9

background

#F7F6FC

surface

#EEECF8

border

#C9C7D1

text

#0A0813

muted

#7C7B82

Preview Lab

Preview with #243DAE

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

Preview Lab → · Contrast checker → · Palette generator →