#243F97#243F97

#243F97 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.3% C 0.148 H 266.6°. Best body text is #FFFFFF at 9.41:1 contrast (WCAG AA passes).

Color values

HEX	#243F97
RGB	rgb(36, 63, 151)
HSL	hsl(226, 61%, 37%)
HSV	hsv(226, 76%, 59%)
CMYK	cmyk(76.2%, 58.3%, 0%, 40.8%)
CIE-LAB	lab(29.82, 22.43, -51.19)
CIE-LCH	lch(29.82, 55.89, 293.66°)
OKLab	oklab(40.34% -0.0087 -0.1477)
OKLCH	oklch(40.34% 0.148 266.6)
XYZ	xyz(8.0890, 6.1636, 30.0355)
Luminance	0.0616 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F97 #977C24

analogous

#247997 #243F97 #432497

triadic

#243F97 #97243F #3F9724

tetradic

#243F97 #972479 #977C24 #249743

square

#243F97 #972479 #977C24 #249743

split-complementary

#243F97 #974324 #799724

monochromatic

#0C1634 #182A66 #243F97 #3054C8 #5D7AD8

Accessibility & contrast

On white

9.41

#243F97 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.23

#243F97 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F97

9.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F97	#FFFFFF	#000000	##FFFFFF
##243F97	1.00	9.41	2.23	9.41
#FFFFFF	9.41	1.00	21.00	1.00
#000000	2.23	21.00	1.00	21.00
##FFFFFF	9.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9A

Deuteranopia (green-blind)

#004195

Tritanopia (blue-blind)

#005564

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #243f97;
/* rgb */ color: rgb(36, 63, 151);
/* oklch */ color: oklch(40.3% 0.148 266.6);

Tailwind

colors: {
  custom: {
    50: '#7073b6',
    500: '#243f97',
    950: '#000000',
  },
}

SCSS

$custom: #243f97;
$custom-light: #7073b6;
$custom-dark: #000000;

JSON

{
  "hex": "#243f97",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 151
  },
  "hsl": {
    "h": 225.913,
    "s": 61.497,
    "l": 36.667
  },
  "oklch": {
    "l": 0.40336,
    "c": 0.14795,
    "h": 266.6
  },
  "luminance": 0.06164
}

Semantic roles & 50–950 ramp

primary

#243F97

secondary

#BDA65A

accent

#BF43E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #243F97

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

Preview Lab → · Contrast checker → · Palette generator →