#424C7B#424C7B

#424C7B is a dark, moderate blue. Relative luminance 0.078; OKLCH L 43.0% C 0.079 H 273.5°. Best body text is #FFFFFF at 8.23:1 contrast (WCAG AA passes).

Color values

HEX	#424C7B
RGB	rgb(66, 76, 123)
HSL	hsl(229, 30%, 37%)
HSV	hsv(229, 46%, 48%)
CMYK	cmyk(46.3%, 38.2%, 0%, 51.8%)
CIE-LAB	lab(33.47, 9.52, -27.99)
CIE-LCH	lch(33.47, 29.57, 288.79°)
OKLab	oklab(43% 0.0049 -0.0788)
OKLCH	oklch(43% 0.079 273.5)
XYZ	xyz(8.4053, 7.7568, 19.7894)
Luminance	0.0776 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424C7B #7B7142

analogous

#42697B #424C7B #55427B

triadic

#424C7B #7B424C #4C7B42

tetradic

#424C7B #7B4269 #7B7142 #427B55

square

#424C7B #7B4269 #7B7142 #427B55

split-complementary

#424C7B #7B5542 #697B42

monochromatic

#171B2B #2D3353 #424C7B #5765A3 #7E88BA

Accessibility & contrast

On white

8.23

#424C7B on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.55

#424C7B on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #424C7B

8.23:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424C7B	#FFFFFF	#000000	##FFFFFF
##424C7B	1.00	8.23	2.55	8.23
#FFFFFF	8.23	1.00	21.00	1.00
#000000	2.55	21.00	1.00	21.00
##FFFFFF	8.23	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3B517D

Deuteranopia (green-blind)

#364D7A

Tritanopia (blue-blind)

#2E565D

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #424c7b;
/* rgb */ color: rgb(66, 76, 123);
/* oklch */ color: oklch(43.0% 0.079 273.5);

Tailwind

colors: {
  custom: {
    50: '#797da1',
    500: '#424c7b',
    950: '#000000',
  },
}

SCSS

$custom: #424c7b;
$custom-light: #797da1;
$custom-dark: #000000;

JSON

{
  "hex": "#424c7b",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 123
  },
  "hsl": {
    "h": 229.474,
    "s": 30.159,
    "l": 37.059
  },
  "oklch": {
    "l": 0.42995,
    "c": 0.07894,
    "h": 273.5
  },
  "luminance": 0.07757
}

Semantic roles & 50–950 ramp

primary

#424C7B

secondary

#A59C74

accent

#B561C6

background

#F7F7F9

surface

#EEEEF2

border

#C9C9CC

text

#09090F

muted

#7B7B7E

Preview Lab

Preview with #424C7B

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

Preview Lab → · Contrast checker → · Palette generator →