#243F98#243F98

#243F98 is a dark, vivid blue. Relative luminance 0.062; OKLCH L 40.4% C 0.149 H 266.7°. Best body text is #FFFFFF at 9.38:1 contrast (WCAG AA passes).

Color values

HEX	#243F98
RGB	rgb(36, 63, 152)
HSL	hsl(226, 62%, 37%)
HSV	hsv(226, 76%, 60%)
CMYK	cmyk(76.3%, 58.6%, 0%, 40.4%)
CIE-LAB	lab(29.90, 22.82, -51.67)
CIE-LCH	lch(29.90, 56.48, 293.82°)
OKLab	oklab(40.42% -0.0087 -0.1491)
OKLCH	oklch(40.42% 0.149 266.7)
XYZ	xyz(8.1706, 6.1962, 30.4650)
Luminance	0.0620 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#243F98 #987D24

analogous

#247998 #243F98 #432498

triadic

#243F98 #98243F #3F9824

tetradic

#243F98 #982479 #987D24 #249843

square

#243F98 #982479 #987D24 #249843

split-complementary

#243F98 #984324 #799824

monochromatic

#0D1635 #182A67 #243F98 #3054C9 #5E7AD9

Accessibility & contrast

On white

9.38

#243F98 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.24

#243F98 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #243F98

9.38:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##243F98	#FFFFFF	#000000	##FFFFFF
##243F98	1.00	9.38	2.24	9.38
#FFFFFF	9.38	1.00	21.00	1.00
#000000	2.24	21.00	1.00	21.00
##FFFFFF	9.38	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9B

Deuteranopia (green-blind)

#004196

Tritanopia (blue-blind)

#005565

Achromatopsia (no color)

#464646

Design tokens & code

CSS

--color: #243f98;
/* rgb */ color: rgb(36, 63, 152);
/* oklch */ color: oklch(40.4% 0.149 266.7);

Tailwind

colors: {
  custom: {
    50: '#7173b7',
    500: '#243f98',
    950: '#000000',
  },
}

SCSS

$custom: #243f98;
$custom-light: #7173b7;
$custom-dark: #000000;

JSON

{
  "hex": "#243f98",
  "rgb": {
    "r": 36,
    "g": 63,
    "b": 152
  },
  "hsl": {
    "h": 226.034,
    "s": 61.702,
    "l": 36.863
  },
  "oklch": {
    "l": 0.40422,
    "c": 0.14935,
    "h": 266.7
  },
  "luminance": 0.06197
}

Semantic roles & 50–950 ramp

primary

#243F98

secondary

#BEA65A

accent

#BF43E5

background

#F7F6FB

surface

#EDECF6

border

#C8C7D0

text

#090811

muted

#7B7B80

Preview Lab

Preview with #243F98

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

Preview Lab → · Contrast checker → · Palette generator →