#243591#243591

#243591 is a dark, vivid blue. Relative luminance 0.050; OKLCH L 37.8% C 0.152 H 269.5°. Best body text is #FFFFFF at 10.54:1 contrast (WCAG AA passes).

Color values

HEX	#243591
RGB	rgb(36, 53, 145)
HSL	hsl(231, 60%, 35%)
HSV	hsv(231, 75%, 57%)
CMYK	cmyk(75.2%, 63.4%, 0%, 43.1%)
CIE-LAB	lab(26.63, 26.90, -52.71)
CIE-LCH	lch(26.63, 59.18, 297.04°)
OKLab	oklab(37.81% -0.0014 -0.1523)
OKLCH	oklch(37.81% 0.152 269.5)
XYZ	xyz(7.1097, 4.9649, 27.3662)
Luminance	0.0497 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243591 #918024

analogous

#246B91 #243591 #492491

triadic

#243591 #912435 #359124

tetradic

#243591 #91246B #918024 #249149

square

#243591 #91246B #918024 #249149

split-complementary

#243591 #914924 #6B9124

monochromatic

#0C112F #182360 #243591 #3047C2 #596DD6

Accessibility & contrast

On white

10.54

#243591 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.99

#243591 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243591

10.54:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243591	#FFFFFF	#000000	##FFFFFF
##243591	1.00	10.54	1.99	10.54
#FFFFFF	10.54	1.00	21.00	1.00
#000000	1.99	21.00	1.00	21.00
##FFFFFF	10.54	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004494

Deuteranopia (green-blind)

#003A8F

Tritanopia (blue-blind)

#004D5E

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #243591;
/* rgb */ color: rgb(36, 53, 145);
/* oklch */ color: oklch(37.8% 0.152 269.5);

Tailwind

colors: {
  custom: {
    50: '#706cb2',
    500: '#243591',
    950: '#000000',
  },
}

SCSS

$custom: #243591;
$custom-light: #706cb2;
$custom-dark: #000000;

JSON

{
  "hex": "#243591",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 145
  },
  "hsl": {
    "h": 230.642,
    "s": 60.221,
    "l": 35.49
  },
  "oklch": {
    "l": 0.37806,
    "c": 0.15229,
    "h": 269.5
  },
  "luminance": 0.04966
}

Semantic roles & 50–950 ramp

primary

#243591

secondary

#BAAB56

accent

#CB44E3

background

#F7F6FB

surface

#EDEBF6

border

#C8C6D0

text

#090611

muted

#7B7A80

Preview Lab

Preview with #243591

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

Preview Lab → · Contrast checker → · Palette generator →