#424C8F#424C8F

#424C8F is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.2% C 0.110 H 274.6°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#424C8F
RGB	rgb(66, 76, 143)
HSL	hsl(232, 37%, 41%)
HSV	hsv(232, 54%, 56%)
CMYK	cmyk(53.8%, 46.9%, 0%, 43.9%)
CIE-LAB	lab(34.62, 16.17, -38.48)
CIE-LCH	lch(34.62, 41.74, 292.79°)
OKLab	oklab(44.25% 0.0089 -0.1095)
OKLCH	oklch(44.25% 0.11 274.6)
XYZ	xyz(9.7876, 8.3097, 27.0695)
Luminance	0.0831 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C8F #8F8542

analogous

#42728F #424C8F #5E428F

triadic

#424C8F #8F424C #4C8F42

tetradic

#424C8F #8F4272 #8F8542 #428F5E

square

#424C8F #8F4272 #8F8542 #428F5E

split-complementary

#424C8F #8F5E42 #728F42

monochromatic

#1B1F3B #2F3665 #424C8F #5B66B3 #858DC7

Accessibility & contrast

On white

7.89

#424C8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#424C8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C8F

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C8F	#FFFFFF	#000000	##FFFFFF
##424C8F	1.00	7.89	2.66	7.89
#FFFFFF	7.89	1.00	21.00	1.00
#000000	2.66	21.00	1.00	21.00
##FFFFFF	7.89	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2F5591

Deuteranopia (green-blind)

#264E8E

Tritanopia (blue-blind)

#1F5B66

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424c8f;
/* rgb */ color: rgb(66, 76, 143);
/* oklch */ color: oklch(44.2% 0.110 274.6);

Tailwind

colors: {
  custom: {
    50: '#7c7db0',
    500: '#424c8f',
    950: '#000000',
  },
}

SCSS

$custom: #424c8f;
$custom-light: #7c7db0;
$custom-dark: #000000;

JSON

{
  "hex": "#424c8f",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 143
  },
  "hsl": {
    "h": 232.208,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.44248,
    "c": 0.10982,
    "h": 274.6
  },
  "luminance": 0.0831
}

Semantic roles & 50–950 ramp

primary

#424C8F

secondary

#B1AA7B

accent

#BE5BCD

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424C8F

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

Preview Lab → · Contrast checker → · Palette generator →