#243E9D#243E9D

#243E9D is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.7% C 0.158 H 267.2°. Best body text is #FFFFFF at 9.33:1 contrast (WCAG AA passes).

Color values

HEX	#243E9D
RGB	rgb(36, 62, 157)
HSL	hsl(227, 63%, 38%)
HSV	hsv(227, 77%, 62%)
CMYK	cmyk(77.1%, 60.5%, 0%, 38.4%)
CIE-LAB	lab(30.04, 25.43, -54.48)
CIE-LCH	lch(30.04, 60.12, 295.02°)
OKLab	oklab(40.66% -0.0078 -0.1574)
OKLCH	oklch(40.66% 0.158 267.2)
XYZ	xyz(8.5339, 6.2537, 32.6491)
Luminance	0.0625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E9D #9D8324

analogous

#247B9D #243E9D #46249D

triadic

#243E9D #9D243E #3E9D24

tetradic

#243E9D #9D247B #9D8324 #249D46

square

#243E9D #9D247B #9D8324 #249D46

split-complementary

#243E9D #9D4624 #7B9D24

monochromatic

#0D1739 #192A6B #243E9D #2F52CF #617BDB

Accessibility & contrast

On white

9.33

#243E9D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.25

#243E9D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E9D

9.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E9D	#FFFFFF	#000000	##FFFFFF
##243E9D	1.00	9.33	2.25	9.33
#FFFFFF	9.33	1.00	21.00	1.00
#000000	2.25	21.00	1.00	21.00
##FFFFFF	9.33	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA0

Deuteranopia (green-blind)

#00419B

Tritanopia (blue-blind)

#005667

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #243e9d;
/* rgb */ color: rgb(36, 62, 157);
/* oklch */ color: oklch(40.7% 0.158 267.2);

Tailwind

colors: {
  custom: {
    50: '#7272bb',
    500: '#243e9d',
    950: '#000000',
  },
}

SCSS

$custom: #243e9d;
$custom-light: #7272bb;
$custom-dark: #000000;

JSON

{
  "hex": "#243e9d",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 157
  },
  "hsl": {
    "h": 227.107,
    "s": 62.694,
    "l": 37.843
  },
  "oklch": {
    "l": 0.40656,
    "c": 0.15755,
    "h": 267.2
  },
  "luminance": 0.06255
}

Semantic roles & 50–950 ramp

primary

#243E9D

secondary

#C0AB5D

accent

#C342E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #243E9D

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

Preview Lab → · Contrast checker → · Palette generator →