#243F90#243F90

#243F90 is a dark, vivid blue. Relative luminance 0.059; OKLCH L 39.7% C 0.138 H 266.2°. Best body text is #FFFFFF at 9.59:1 contrast (WCAG AA passes).

Color values

HEX	#243F90
RGB	rgb(36, 63, 144)
HSL	hsl(225, 60%, 35%)
HSV	hsv(225, 75%, 56%)
CMYK	cmyk(75%, 56.3%, 0%, 43.5%)
CIE-LAB	lab(29.27, 19.69, -47.80)
CIE-LCH	lch(29.27, 51.70, 292.39°)
OKLab	oklab(39.75% -0.0091 -0.1377)
OKLCH	oklch(39.75% 0.138 266.2)
XYZ	xyz(7.5373, 5.9429, 27.1300)
Luminance	0.0594 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F90 #907524

analogous

#247590 #243F90 #3F2490

triadic

#243F90 #90243F #3F9024

tetradic

#243F90 #902475 #907524 #24903F

square

#243F90 #902475 #907524 #24903F

split-complementary

#243F90 #903F24 #759024

monochromatic

#0C142E #182A5F #243F90 #3054C1 #5978D5

Accessibility & contrast

On white

9.59

#243F90 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.19

#243F90 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F90

9.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F90	#FFFFFF	#000000	##FFFFFF
##243F90	1.00	9.59	2.19	9.59
#FFFFFF	9.59	1.00	21.00	1.00
#000000	2.19	21.00	1.00	21.00
##FFFFFF	9.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004A93

Deuteranopia (green-blind)

#00408E

Tritanopia (blue-blind)

#005361

Achromatopsia (no color)

#454545

Design tokens & code

CSS

--color: #243f90;
/* rgb */ color: rgb(36, 63, 144);
/* oklch */ color: oklch(39.7% 0.138 266.2);

Tailwind

colors: {
  custom: {
    50: '#6f73b1',
    500: '#243f90',
    950: '#000000',
  },
}

SCSS

$custom: #243f90;
$custom-light: #6f73b1;
$custom-dark: #000000;

JSON

{
  "hex": "#243f90",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 144
  },
  "hsl": {
    "h": 225,
    "s": 60,
    "l": 35.294
  },
  "oklch": {
    "l": 0.39746,
    "c": 0.13803,
    "h": 266.2
  },
  "luminance": 0.05944
}

Semantic roles & 50–950 ramp

primary

#243F90

secondary

#BAA156

accent

#BC45E3

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#080811

muted

#7B7B80

Preview Lab

Preview with #243F90

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

Preview Lab → · Contrast checker → · Palette generator →