#424ACB#424ACB

#424ACB is a mid, vivid blue. Relative luminance 0.104; OKLCH L 48.5% C 0.196 H 273.7°. Best body text is #FFFFFF at 6.83:1 contrast (WCAG AA passes).

Color values

HEX	#424ACB
RGB	rgb(66, 74, 203)
HSL	hsl(236, 57%, 53%)
HSV	hsv(236, 67%, 80%)
CMYK	cmyk(67.5%, 63.5%, 0%, 20.4%)
CIE-LAB	lab(38.49, 38.12, -67.87)
CIE-LCH	lch(38.49, 77.84, 299.32°)
OKLab	oklab(48.52% 0.0127 -0.1958)
OKLCH	oklch(48.52% 0.196 273.7)
XYZ	xyz(15.4714, 10.3662, 57.6739)
Luminance	0.1037 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#424ACB #CBC342

analogous

#428FCB #424ACB #7E42CB

triadic

#424ACB #CB424A #4ACB42

tetradic

#424ACB #CB428F #CBC342 #42CB7E

square

#424ACB #CB428F #CBC342 #42CB7E

split-complementary

#424ACB #CB7E42 #8FCB42

monochromatic

#202473 #2D34A3 #424ACB #7278D8 #A2A6E5

Accessibility & contrast

On white

6.83

#424ACB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.07

#424ACB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424ACB

6.83:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424ACB	#FFFFFF	#000000	##FFFFFF
##424ACB	1.00	6.83	3.07	6.83
#FFFFFF	6.83	1.00	21.00	1.00
#000000	3.07	21.00	1.00	21.00
##FFFFFF	6.83	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CF

Deuteranopia (green-blind)

#0054C9

Tritanopia (blue-blind)

#006B84

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424acb;
/* rgb */ color: rgb(66, 74, 203);
/* oklch */ color: oklch(48.5% 0.196 273.7);

Tailwind

colors: {
  custom: {
    50: '#877ddc',
    500: '#424acb',
    950: '#000000',
  },
}

SCSS

$custom: #424acb;
$custom-light: #877ddc;
$custom-dark: #000000;

JSON

{
  "hex": "#424acb",
  "rgb": {
    "r": 66,
    "g": 74,
    "b": 203
  },
  "hsl": {
    "h": 236.496,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48521,
    "c": 0.19626,
    "h": 273.7
  },
  "luminance": 0.10368
}

Semantic roles & 50–950 ramp

primary

#424ACB

secondary

#D2CF97

accent

#D748E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #424ACB

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

Preview Lab → · Contrast checker → · Palette generator →