#424CCB#424CCB

#424CCB is a mid, vivid blue. Relative luminance 0.106; OKLCH L 48.9% C 0.194 H 273.3°. Best body text is #FFFFFF at 6.71:1 contrast (WCAG AA passes).

Color values

HEX	#424CCB
RGB	rgb(66, 76, 203)
HSL	hsl(236, 57%, 53%)
HSV	hsv(236, 67%, 80%)
CMYK	cmyk(67.5%, 62.6%, 0%, 20.4%)
CIE-LAB	lab(38.96, 36.89, -67.10)
CIE-LCH	lch(38.96, 76.57, 298.80°)
OKLab	oklab(48.87% 0.0112 -0.1936)
OKLCH	oklch(48.87% 0.194 273.3)
XYZ	xyz(15.6071, 10.6375, 57.7191)
Luminance	0.1064 (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

#424CCB #CBC142

analogous

#4291CB #424CCB #7C42CB

triadic

#424CCB #CB424C #4CCB42

tetradic

#424CCB #CB4291 #CBC142 #42CB7C

square

#424CCB #CB4291 #CBC142 #42CB7C

split-complementary

#424CCB #CB7C42 #91CB42

monochromatic

#202673 #2D35A3 #424CCB #7279D8 #A2A7E5

Accessibility & contrast

On white

6.71

#424CCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.13

#424CCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424CCB

6.71:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424CCB	#FFFFFF	#000000	##FFFFFF
##424CCB	1.00	6.71	3.13	6.71
#FFFFFF	6.71	1.00	21.00	1.00
#000000	3.13	21.00	1.00	21.00
##FFFFFF	6.71	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0062CF

Deuteranopia (green-blind)

#0056C9

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5C5C5C

Design tokens & code

CSS

--color: #424ccb;
/* rgb */ color: rgb(66, 76, 203);
/* oklch */ color: oklch(48.9% 0.194 273.3);

Tailwind

colors: {
  custom: {
    50: '#877edc',
    500: '#424ccb',
    950: '#000000',
  },
}

SCSS

$custom: #424ccb;
$custom-light: #877edc;
$custom-dark: #000000;

JSON

{
  "hex": "#424ccb",
  "rgb": {
    "r": 66,
    "g": 76,
    "b": 203
  },
  "hsl": {
    "h": 235.62,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48866,
    "c": 0.19391,
    "h": 273.3
  },
  "luminance": 0.10639
}

Semantic roles & 50–950 ramp

primary

#424CCB

secondary

#D2CE97

accent

#D548E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0A15

muted

#7E7C83

Preview Lab

Preview with #424CCB

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

Preview Lab → · Contrast checker → · Palette generator →