#424F99#424F99

#424F99 is a mid, vivid blue. Relative luminance 0.090; OKLCH L 45.6% C 0.121 H 273.2°. Best body text is #FFFFFF at 7.47:1 contrast (WCAG AA passes).

Color values

HEX	#424F99
RGB	rgb(66, 79, 153)
HSL	hsl(231, 40%, 43%)
HSV	hsv(231, 57%, 60%)
CMYK	cmyk(56.9%, 48.4%, 0%, 40%)
CIE-LAB	lab(36.08, 17.63, -42.22)
CIE-LCH	lch(36.08, 45.75, 292.66°)
OKLab	oklab(45.56% 0.0067 -0.1204)
OKLCH	oklch(45.56% 0.121 273.2)
XYZ	xyz(10.7906, 9.0493, 31.3089)
Luminance	0.0905 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424F99 #998C42

analogous

#427B99 #424F99 #604299

triadic

#424F99 #99424F #4F9942

tetradic

#424F99 #99427B #998C42 #429960

square

#424F99 #99427B #998C42 #429960

split-complementary

#424F99 #996042 #7B9942

monochromatic

#1D2343 #30396E #424F99 #5E6CBA #8993CC

Accessibility & contrast

On white

7.47

#424F99 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.81

#424F99 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424F99

7.47:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424F99	#FFFFFF	#000000	##FFFFFF
##424F99	1.00	7.47	2.81	7.47
#FFFFFF	7.47	1.00	21.00	1.00
#000000	2.81	21.00	1.00	21.00
##FFFFFF	7.47	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C599C

Deuteranopia (green-blind)

#205197

Tritanopia (blue-blind)

#115F6C

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #424f99;
/* rgb */ color: rgb(66, 79, 153);
/* oklch */ color: oklch(45.6% 0.121 273.2);

Tailwind

colors: {
  custom: {
    50: '#7e80b7',
    500: '#424f99',
    950: '#000000',
  },
}

SCSS

$custom: #424f99;
$custom-light: #7e80b7;
$custom-dark: #000000;

JSON

{
  "hex": "#424f99",
  "rgb": {
    "r": 66,
    "g": 79,
    "b": 153
  },
  "hsl": {
    "h": 231.034,
    "s": 39.726,
    "l": 42.941
  },
  "oklch": {
    "l": 0.4556,
    "c": 0.12058,
    "h": 273.2
  },
  "luminance": 0.0905
}

Semantic roles & 50–950 ramp

primary

#424F99

secondary

#B7AF80

accent

#BE58D0

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0A11

muted

#7C7C80

Preview Lab

Preview with #424F99

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

Preview Lab → · Contrast checker → · Palette generator →