#243587#243587

#243587 is a dark, vivid blue. Relative luminance 0.047; OKLCH L 36.9% C 0.138 H 269.4°. Best body text is #FFFFFF at 10.86:1 contrast (WCAG AA passes).

Color values

HEX	#243587
RGB	rgb(36, 53, 135)
HSL	hsl(230, 58%, 34%)
HSV	hsv(230, 73%, 53%)
CMYK	cmyk(73.3%, 60.7%, 0%, 47.1%)
CIE-LAB	lab(25.77, 23.07, -47.92)
CIE-LCH	lch(25.77, 53.18, 295.71°)
OKLab	oklab(36.9% -0.0013 -0.1382)
OKLCH	oklch(36.9% 0.138 269.4)
XYZ	xyz(6.3723, 4.6699, 23.4825)
Luminance	0.0467 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243587 #877624

analogous

#246687 #243587 #442487

triadic

#243587 #872435 #358724

tetradic

#243587 #872466 #877624 #248744

square

#243587 #872466 #877624 #248744

split-complementary

#243587 #874424 #668724

monochromatic

#0A0F26 #172257 #243587 #3148B7 #546AD1

Accessibility & contrast

On white

10.86

#243587 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.93

#243587 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243587

10.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243587	#FFFFFF	#000000	##FFFFFF
##243587	1.00	10.86	1.93	10.86
#FFFFFF	10.86	1.00	21.00	1.00
#000000	1.93	21.00	1.00	21.00
##FFFFFF	10.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00428A

Deuteranopia (green-blind)

#003985

Tritanopia (blue-blind)

#004958

Achromatopsia (no color)

#3D3D3D

Design tokens & code

CSS

--color: #243587;
/* rgb */ color: rgb(36, 53, 135);
/* oklch */ color: oklch(36.9% 0.138 269.4);

Tailwind

colors: {
  custom: {
    50: '#6d6cab',
    500: '#243587',
    950: '#000000',
  },
}

SCSS

$custom: #243587;
$custom-light: #6d6cab;
$custom-dark: #000000;

JSON

{
  "hex": "#243587",
  "rgb": {
    "r": 36,
    "g": 53,
    "b": 135
  },
  "hsl": {
    "h": 229.697,
    "s": 57.895,
    "l": 33.529
  },
  "oklch": {
    "l": 0.36899,
    "c": 0.13823,
    "h": 269.4
  },
  "luminance": 0.04671
}

Semantic roles & 50–950 ramp

primary

#243587

secondary

#B5A451

accent

#C747E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080610

muted

#7B7A7F

Preview Lab

Preview with #243587

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

Preview Lab → · Contrast checker → · Palette generator →