#424C8A#424C8A

#424C8A is a dark, moderate blue. Relative luminance 0.082; OKLCH L 43.9% C 0.102 H 274.5°. Best body text is #FFFFFF at 7.98:1 contrast (WCAG AA passes).

Color values

HEX	#424C8A
RGB	rgb(66, 76, 138)
HSL	hsl(232, 35%, 40%)
HSV	hsv(232, 52%, 54%)
CMYK	cmyk(52.2%, 44.9%, 0%, 45.9%)
CIE-LAB	lab(34.32, 14.48, -35.91)
CIE-LCH	lch(34.32, 38.72, 291.96°)
OKLab	oklab(43.92% 0.008 -0.1019)
OKLCH	oklch(43.92% 0.102 274.5)
XYZ	xyz(9.4172, 8.1615, 25.1189)
Luminance	0.0816 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C8A #8A8042

analogous

#42708A #424C8A #5C428A

triadic

#424C8A #8A424C #4C8A42

tetradic

#424C8A #8A4270 #8A8042 #428A5C

square

#424C8A #8A4270 #8A8042 #428A5C

split-complementary

#424C8A #8A5C42 #708A42

monochromatic

#1A1E37 #2E3561 #424C8A #5965B0 #838CC4

Accessibility & contrast

On white

7.98

#424C8A on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#424C8A on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C8A

7.98:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C8A	#FFFFFF	#000000	##FFFFFF
##424C8A	1.00	7.98	2.63	7.98
#FFFFFF	7.98	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.98	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#32548C

Deuteranopia (green-blind)

#2B4E89

Tritanopia (blue-blind)

#245964

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #424c8a;
/* rgb */ color: rgb(66, 76, 138);
/* oklch */ color: oklch(43.9% 0.102 274.5);

Tailwind

colors: {
  custom: {
    50: '#7b7dac',
    500: '#424c8a',
    950: '#000000',
  },
}

SCSS

$custom: #424c8a;
$custom-light: #7b7dac;
$custom-dark: #000000;

JSON

{
  "hex": "#424c8a",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 138
  },
  "hsl": {
    "h": 231.667,
    "s": 35.294,
    "l": 40
  },
  "oklch": {
    "l": 0.4392,
    "c": 0.10223,
    "h": 274.5
  },
  "luminance": 0.08162
}

Semantic roles & 50–950 ramp

primary

#424C8A

secondary

#AEA779

accent

#BC5CCB

background

#F7F7FA

surface

#EEEEF4

border

#C9C9CE

text

#0A0910

muted

#7C7B7F

Preview Lab

Preview with #424C8A

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

Preview Lab → · Contrast checker → · Palette generator →