#243683#243683

#243683 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.8% C 0.131 H 269.0°. Best body text is #FFFFFF at 10.88:1 contrast (WCAG AA passes).

Color values

HEX	#243683
RGB	rgb(36, 54, 131)
HSL	hsl(229, 57%, 33%)
HSV	hsv(229, 73%, 51%)
CMYK	cmyk(72.5%, 58.8%, 0%, 48.6%)
CIE-LAB	lab(25.72, 20.83, -45.51)
CIE-LCH	lch(25.72, 50.05, 294.59°)
OKLab	oklab(36.75% -0.0023 -0.1311)
OKLCH	oklch(36.75% 0.131 269)
XYZ	xyz(6.1420, 4.6515, 22.0425)
Luminance	0.0465 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243683 #837124

analogous

#246583 #243683 #422483

triadic

#243683 #832436 #368324

tetradic

#243683 #832465 #837124 #248342

square

#243683 #832465 #837124 #248342

split-complementary

#243683 #834224 #658324

monochromatic

#0A0E23 #172253 #243683 #314AB3 #526ACF

Accessibility & contrast

On white

10.88

#243683 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#243683 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243683

10.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243683	#FFFFFF	#000000	##FFFFFF
##243683	1.00	10.88	1.93	10.88
#FFFFFF	10.88	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004186

Deuteranopia (green-blind)

#003981

Tritanopia (blue-blind)

#004957

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243683;
/* rgb */ color: rgb(36, 54, 131);
/* oklch */ color: oklch(36.8% 0.131 269.0);

Tailwind

colors: {
  custom: {
    50: '#6c6ca8',
    500: '#243683',
    950: '#000000',
  },
}

SCSS

$custom: #243683;
$custom-light: #6c6ca8;
$custom-dark: #000000;

JSON

{
  "hex": "#243683",
  "rgb": {
    "r": 36,
    "g": 54,
    "b": 131
  },
  "hsl": {
    "h": 228.632,
    "s": 56.886,
    "l": 32.745
  },
  "oklch": {
    "l": 0.36755,
    "c": 0.13114,
    "h": 269
  },
  "luminance": 0.04652
}

Semantic roles & 50–950 ramp

primary

#243683

secondary

#B3A04F

accent

#C348E0

background

#F6F6FA

surface

#ECEBF4

border

#C7C6CE

text

#080710

muted

#7A7A7F

Preview Lab

Preview with #243683

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

Preview Lab → · Contrast checker → · Palette generator →