#424D8A#424D8A

#424D8A is a dark, moderate blue. Relative luminance 0.083; OKLCH L 44.1% C 0.101 H 273.9°. Best body text is #FFFFFF at 7.89:1 contrast (WCAG AA passes).

Color values

HEX	#424D8A
RGB	rgb(66, 77, 138)
HSL	hsl(231, 35%, 40%)
HSV	hsv(231, 52%, 54%)
CMYK	cmyk(52.2%, 44.2%, 0%, 45.9%)
CIE-LAB	lab(34.60, 13.82, -35.46)
CIE-LCH	lch(34.60, 38.06, 291.30°)
OKLab	oklab(44.14% 0.0068 -0.1006)
OKLCH	oklch(44.14% 0.101 273.9)
XYZ	xyz(9.4866, 8.3004, 25.1421)
Luminance	0.0830 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424D8A #8A7F42

analogous

#42718A #424D8A #5B428A

triadic

#424D8A #8A424D #4D8A42

tetradic

#424D8A #8A4271 #8A7F42 #428A5B

square

#424D8A #8A4271 #8A7F42 #428A5B

split-complementary

#424D8A #8A5B42 #718A42

monochromatic

#1A1F37 #2E3661 #424D8A #5967B0 #838DC4

Accessibility & contrast

On white

7.89

#424D8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.66

#424D8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424D8A

7.89:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424D8A	#FFFFFF	#000000	##FFFFFF
##424D8A	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)

#34558C

Deuteranopia (green-blind)

#2D4F89

Tritanopia (blue-blind)

#245A65

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424d8a;
/* rgb */ color: rgb(66, 77, 138);
/* oklch */ color: oklch(44.1% 0.101 273.9);

Tailwind

colors: {
  custom: {
    50: '#7b7eac',
    500: '#424d8a',
    950: '#000000',
  },
}

SCSS

$custom: #424d8a;
$custom-light: #7b7eac;
$custom-dark: #000000;

JSON

{
  "hex": "#424d8a",
  "rgb": {
    "r": 66,
    "g": 77,
    "b": 138
  },
  "hsl": {
    "h": 230.833,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.44136,
    "c": 0.10081,
    "h": 273.9
  },
  "luminance": 0.08301
}

Semantic roles & 50–950 ramp

primary

#424D8A

secondary

#AEA679

accent

#BA5CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #424D8A

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

Preview Lab → · Contrast checker → · Palette generator →