#424B9A#424B9A

#424B9A is a dark, vivid blue. Relative luminance 0.085; OKLCH L 44.8% C 0.128 H 275.1°. Best body text is #FFFFFF at 7.76:1 contrast (WCAG AA passes).

Color values

HEX	#424B9A
RGB	rgb(66, 75, 154)
HSL	hsl(234, 40%, 43%)
HSV	hsv(234, 57%, 60%)
CMYK	cmyk(57.1%, 51.3%, 0%, 39.6%)
CIE-LAB	lab(35.05, 20.59, -44.47)
CIE-LCH	lch(35.05, 49.01, 294.84°)
OKLab	oklab(44.8% 0.0114 -0.1271)
OKLCH	oklch(44.8% 0.128 275.1)
XYZ	xyz(10.5937, 8.5228, 31.6524)
Luminance	0.0852 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B9A #9A9142

analogous

#42779A #424B9A #65429A

triadic

#424B9A #9A424B #4B9A42

tetradic

#424B9A #9A4277 #9A9142 #429A65

square

#424B9A #9A4277 #9A9142 #429A65

split-complementary

#424B9A #9A6542 #779A42

monochromatic

#1D2144 #30366F #424B9A #5F68BA #8A91CD

Accessibility & contrast

On white

7.76

#424B9A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.70

#424B9A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B9A

7.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B9A	#FFFFFF	#000000	##FFFFFF
##424B9A	1.00	7.76	2.70	7.76
#FFFFFF	7.76	1.00	21.00	1.00
#000000	2.70	21.00	1.00	21.00
##FFFFFF	7.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#22569D

Deuteranopia (green-blind)

#144F98

Tritanopia (blue-blind)

#105D6B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #424b9a;
/* rgb */ color: rgb(66, 75, 154);
/* oklch */ color: oklch(44.8% 0.128 275.1);

Tailwind

colors: {
  custom: {
    50: '#7e7db8',
    500: '#424b9a',
    950: '#000000',
  },
}

SCSS

$custom: #424b9a;
$custom-light: #7e7db8;
$custom-dark: #000000;

JSON

{
  "hex": "#424b9a",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 154
  },
  "hsl": {
    "h": 233.864,
    "s": 40,
    "l": 43.137
  },
  "oklch": {
    "l": 0.448,
    "c": 0.12758,
    "h": 275.1
  },
  "luminance": 0.08523
}

Semantic roles & 50–950 ramp

primary

#424B9A

secondary

#B8B280

accent

#C458D0

background

#F8F7FB

surface

#EFEEF6

border

#CAC9D0

text

#0A0911

muted

#7C7B80

Preview Lab

Preview with #424B9A

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

Preview Lab → · Contrast checker → · Palette generator →