#424A8F#424A8F

#424A8F is a dark, moderate blue. Relative luminance 0.080; OKLCH L 43.8% C 0.113 H 275.8°. Best body text is #FFFFFF at 8.05:1 contrast (WCAG AA passes).

Color values

HEX	#424A8F
RGB	rgb(66, 74, 143)
HSL	hsl(234, 37%, 41%)
HSV	hsv(234, 54%, 56%)
CMYK	cmyk(53.8%, 48.3%, 0%, 43.9%)
CIE-LAB	lab(34.06, 17.48, -39.37)
CIE-LCH	lch(34.06, 43.08, 293.94°)
OKLab	oklab(43.83% 0.0113 -0.1121)
OKLCH	oklch(43.83% 0.113 275.8)
XYZ	xyz(9.6519, 8.0384, 27.0242)
Luminance	0.0804 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424A8F #8F8742

analogous

#42708F #424A8F #60428F

triadic

#424A8F #8F424A #4A8F42

tetradic

#424A8F #8F4270 #8F8742 #428F60

square

#424A8F #8F4270 #8F8742 #428F60

split-complementary

#424A8F #8F6042 #708F42

monochromatic

#1B1F3B #2F3465 #424A8F #5B64B3 #858CC7

Accessibility & contrast

On white

8.05

#424A8F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#424A8F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424A8F

8.05:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424A8F	#FFFFFF	#000000	##FFFFFF
##424A8F	1.00	8.05	2.61	8.05
#FFFFFF	8.05	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.05	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B5392

Deuteranopia (green-blind)

#224D8E

Tritanopia (blue-blind)

#1F5965

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #424a8f;
/* rgb */ color: rgb(66, 74, 143);
/* oklch */ color: oklch(43.8% 0.113 275.8);

Tailwind

colors: {
  custom: {
    50: '#7c7cb0',
    500: '#424a8f',
    950: '#000000',
  },
}

SCSS

$custom: #424a8f;
$custom-light: #7c7cb0;
$custom-dark: #000000;

JSON

{
  "hex": "#424a8f",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 143
  },
  "hsl": {
    "h": 233.766,
    "s": 36.842,
    "l": 40.98
  },
  "oklch": {
    "l": 0.43825,
    "c": 0.11266,
    "h": 275.8
  },
  "luminance": 0.08039
}

Semantic roles & 50–950 ramp

primary

#424A8F

secondary

#B1AC7B

accent

#C15BCD

background

#F7F7FA

surface

#EEEEF5

border

#C9C9CF

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424A8F

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

Preview Lab → · Contrast checker → · Palette generator →