#424E8A#424E8A

#424E8A is a dark, moderate blue. Relative luminance 0.084; OKLCH L 44.4% C 0.099 H 273.2°. Best body text is #FFFFFF at 7.81:1 contrast (WCAG AA passes).

Color values

HEX	#424E8A
RGB	rgb(66, 78, 138)
HSL	hsl(230, 35%, 40%)
HSV	hsv(230, 52%, 54%)
CMYK	cmyk(52.2%, 43.5%, 0%, 45.9%)
CIE-LAB	lab(34.89, 13.17, -35.00)
CIE-LCH	lch(34.89, 37.40, 290.62°)
OKLab	oklab(44.35% 0.0055 -0.0992)
OKLCH	oklch(44.35% 0.099 273.2)
XYZ	xyz(9.5571, 8.4414, 25.1656)
Luminance	0.0844 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424E8A #8A7E42

analogous

#42728A #424E8A #5A428A

triadic

#424E8A #8A424E #4E8A42

tetradic

#424E8A #8A4272 #8A7E42 #428A5A

square

#424E8A #8A4272 #8A7E42 #428A5A

split-complementary

#424E8A #8A5A42 #728A42

monochromatic

#1A1F37 #2E3761 #424E8A #5968B0 #838EC4

Accessibility & contrast

On white

7.81

#424E8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.69

#424E8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424E8A

7.81:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424E8A	#FFFFFF	#000000	##FFFFFF
##424E8A	1.00	7.81	2.69	7.81
#FFFFFF	7.81	1.00	21.00	1.00
#000000	2.69	21.00	1.00	21.00
##FFFFFF	7.81	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#36558C

Deuteranopia (green-blind)

#2E4F89

Tritanopia (blue-blind)

#235B65

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #424e8a;
/* rgb */ color: rgb(66, 78, 138);
/* oklch */ color: oklch(44.4% 0.099 273.2);

Tailwind

colors: {
  custom: {
    50: '#7b7fac',
    500: '#424e8a',
    950: '#000000',
  },
}

SCSS

$custom: #424e8a;
$custom-light: #7b7fac;
$custom-dark: #000000;

JSON

{
  "hex": "#424e8a",
  "rgb": {
    "r": 66,
    "g": 78,
    "b": 138
  },
  "hsl": {
    "h": 230,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.44354,
    "c": 0.09939,
    "h": 273.2
  },
  "luminance": 0.08442
}

Semantic roles & 50–950 ramp

primary

#424E8A

secondary

#AEA679

accent

#B95CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0A10

muted

#7C7C7F

Preview Lab

Preview with #424E8A

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

Preview Lab → · Contrast checker → · Palette generator →