#243787#243787

#243787 is a dark, vivid blue. Relative luminance 0.049; OKLCH L 37.3% C 0.136 H 268.7°. Best body text is #FFFFFF at 10.65:1 contrast (WCAG AA passes).

Color values

HEX	#243787
RGB	rgb(36, 55, 135)
HSL	hsl(228, 58%, 34%)
HSV	hsv(228, 73%, 53%)
CMYK	cmyk(73.3%, 59.3%, 0%, 47.1%)
CIE-LAB	lab(26.32, 21.69, -47.02)
CIE-LCH	lch(26.32, 51.78, 294.76°)
OKLab	oklab(37.31% -0.003 -0.1356)
OKLCH	oklch(37.31% 0.136 268.7)
XYZ	xyz(6.4654, 4.8561, 23.5135)
Luminance	0.0486 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243787 #877424

analogous

#246887 #243787 #422487

triadic

#243787 #872437 #378724

tetradic

#243787 #872468 #877424 #248742

square

#243787 #872468 #877424 #248742

split-complementary

#243787 #874224 #688724

monochromatic

#0A1026 #172357 #243787 #314BB7 #546CD1

Accessibility & contrast

On white

10.65

#243787 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#243787 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243787

10.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243787	#FFFFFF	#000000	##FFFFFF
##243787	1.00	10.65	1.97	10.65
#FFFFFF	10.65	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#00438A

Deuteranopia (green-blind)

#003A85

Tritanopia (blue-blind)

#004B59

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #243787;
/* rgb */ color: rgb(36, 55, 135);
/* oklch */ color: oklch(37.3% 0.136 268.7);

Tailwind

colors: {
  custom: {
    50: '#6d6dab',
    500: '#243787',
    950: '#000000',
  },
}

SCSS

$custom: #243787;
$custom-light: #6d6dab;
$custom-dark: #000000;

JSON

{
  "hex": "#243787",
  "rgb": {
    "r": 36,
    "g": 55,
    "b": 135
  },
  "hsl": {
    "h": 228.485,
    "s": 57.895,
    "l": 33.529
  },
  "oklch": {
    "l": 0.37308,
    "c": 0.1356,
    "h": 268.7
  },
  "luminance": 0.04857
}

Semantic roles & 50–950 ramp

primary

#243787

secondary

#B5A251

accent

#C347E1

background

#F7F6FA

surface

#EDEBF4

border

#C8C6CE

text

#080710

muted

#7B7A7F

Preview Lab

Preview with #243787

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

Preview Lab → · Contrast checker → · Palette generator →