#424B8A#424B8A

#424B8A is a dark, moderate blue. Relative luminance 0.080; OKLCH L 43.7% C 0.104 H 275.1°. Best body text is #FFFFFF at 8.06:1 contrast (WCAG AA passes).

Color values

HEX	#424B8A
RGB	rgb(66, 75, 138)
HSL	hsl(233, 35%, 40%)
HSV	hsv(233, 52%, 54%)
CMYK	cmyk(52.2%, 45.7%, 0%, 45.9%)
CIE-LAB	lab(34.03, 15.14, -36.36)
CIE-LCH	lch(34.03, 39.38, 292.60°)
OKLab	oklab(43.7% 0.0093 -0.1032)
OKLCH	oklch(43.7% 0.104 275.1)
XYZ	xyz(9.3488, 8.0248, 25.0961)
Luminance	0.0803 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424B8A #8A8142

analogous

#426F8A #424B8A #5D428A

triadic

#424B8A #8A424B #4B8A42

tetradic

#424B8A #8A426F #8A8142 #428A5D

square

#424B8A #8A426F #8A8142 #428A5D

split-complementary

#424B8A #8A5D42 #6F8A42

monochromatic

#1A1E37 #2E3561 #424B8A #5964B0 #838BC4

Accessibility & contrast

On white

8.06

#424B8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.61

#424B8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424B8A

8.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424B8A	#FFFFFF	#000000	##FFFFFF
##424B8A	1.00	8.06	2.61	8.06
#FFFFFF	8.06	1.00	21.00	1.00
#000000	2.61	21.00	1.00	21.00
##FFFFFF	8.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#31538C

Deuteranopia (green-blind)

#294D89

Tritanopia (blue-blind)

#245864

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #424b8a;
/* rgb */ color: rgb(66, 75, 138);
/* oklch */ color: oklch(43.7% 0.104 275.1);

Tailwind

colors: {
  custom: {
    50: '#7b7dac',
    500: '#424b8a',
    950: '#000000',
  },
}

SCSS

$custom: #424b8a;
$custom-light: #7b7dac;
$custom-dark: #000000;

JSON

{
  "hex": "#424b8a",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 138
  },
  "hsl": {
    "h": 232.5,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.43704,
    "c": 0.10366,
    "h": 275.1
  },
  "luminance": 0.08025
}

Semantic roles & 50–950 ramp

primary

#424B8A

secondary

#AEA879

accent

#BD5CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424B8A

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

Preview Lab → · Contrast checker → · Palette generator →