#243E9F#243E9F

#243E9F is a dark, vivid blue. Relative luminance 0.063; OKLCH L 40.8% C 0.160 H 267.2°. Best body text is #FFFFFF at 9.27:1 contrast (WCAG AA passes).

Color values

HEX	#243E9F
RGB	rgb(36, 62, 159)
HSL	hsl(227, 63%, 38%)
HSV	hsv(227, 77%, 62%)
CMYK	cmyk(77.4%, 61%, 0%, 37.6%)
CIE-LAB	lab(30.21, 26.20, -55.42)
CIE-LCH	lch(30.21, 61.30, 295.30°)
OKLab	oklab(40.83% -0.0078 -0.1601)
OKLCH	oklch(40.83% 0.16 267.2)
XYZ	xyz(8.7060, 6.3226, 33.5557)
Luminance	0.0632 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243E9F #9F8524

analogous

#247B9F #243E9F #47249F

triadic

#243E9F #9F243E #3E9F24

tetradic

#243E9F #9F247B #9F8524 #249F47

square

#243E9F #9F247B #9F8524 #249F47

split-complementary

#243E9F #9F4724 #7B9F24

monochromatic

#0D173B #192B6D #243E9F #3052D0 #627CDB

Accessibility & contrast

On white

9.27

#243E9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.26

#243E9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243E9F

9.27:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243E9F	#FFFFFF	#000000	##FFFFFF
##243E9F	1.00	9.27	2.26	9.27
#FFFFFF	9.27	1.00	21.00	1.00
#000000	2.26	21.00	1.00	21.00
##FFFFFF	9.27	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00429D

Tritanopia (blue-blind)

#005768

Achromatopsia (no color)

#474747

Design tokens & code

CSS

--color: #243e9f;
/* rgb */ color: rgb(36, 62, 159);
/* oklch */ color: oklch(40.8% 0.160 267.2);

Tailwind

colors: {
  custom: {
    50: '#7273bc',
    500: '#243e9f',
    950: '#000000',
  },
}

SCSS

$custom: #243e9f;
$custom-light: #7273bc;
$custom-dark: #000000;

JSON

{
  "hex": "#243e9f",
  "rgb": {
    "r": 36,
    "g": 62,
    "b": 159
  },
  "hsl": {
    "h": 227.317,
    "s": 63.077,
    "l": 38.235
  },
  "oklch": {
    "l": 0.40834,
    "c": 0.16031,
    "h": 267.2
  },
  "luminance": 0.06324
}

Semantic roles & 50–950 ramp

primary

#243E9F

secondary

#C1AC5E

accent

#C342E6

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090812

muted

#7B7B81

Preview Lab

Preview with #243E9F

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

Preview Lab → · Contrast checker → · Palette generator →