#424BCB#424BCB

#424BCB is a mid, vivid blue. Relative luminance 0.105; OKLCH L 48.7% C 0.195 H 273.5°. Best body text is #FFFFFF at 6.77:1 contrast (WCAG AA passes).

Color values

HEX	#424BCB
RGB	rgb(66, 75, 203)
HSL	hsl(236, 57%, 53%)
HSV	hsv(236, 67%, 80%)
CMYK	cmyk(67.5%, 63.1%, 0%, 20.4%)
CIE-LAB	lab(38.73, 37.51, -67.49)
CIE-LCH	lch(38.73, 77.21, 299.06°)
OKLab	oklab(48.69% 0.012 -0.1947)
OKLCH	oklch(48.69% 0.195 273.5)
XYZ	xyz(15.5387, 10.5008, 57.6963)
Luminance	0.1050 (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

#424BCB #CBC242

analogous

#4290CB #424BCB #7D42CB

triadic

#424BCB #CB424B #4BCB42

tetradic

#424BCB #CB4290 #CBC242 #42CB7D

square

#424BCB #CB4290 #CBC242 #42CB7D

split-complementary

#424BCB #CB7D42 #90CB42

monochromatic

#202573 #2D35A3 #424BCB #7279D8 #A2A6E5

Accessibility & contrast

On white

6.77

#424BCB on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.10

#424BCB on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #424BCB

6.77:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##424BCB	#FFFFFF	#000000	##FFFFFF
##424BCB	1.00	6.77	3.10	6.77
#FFFFFF	6.77	1.00	21.00	1.00
#000000	3.10	21.00	1.00	21.00
##FFFFFF	6.77	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0061CF

Deuteranopia (green-blind)

#0055C9

Tritanopia (blue-blind)

#006C84

Achromatopsia (no color)

#5B5B5B

Design tokens & code

CSS

--color: #424bcb;
/* rgb */ color: rgb(66, 75, 203);
/* oklch */ color: oklch(48.7% 0.195 273.5);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#424bcb",
  "rgb": {
    "r": 66,
    "g": 75,
    "b": 203
  },
  "hsl": {
    "h": 236.058,
    "s": 56.846,
    "l": 52.745
  },
  "oklch": {
    "l": 0.48693,
    "c": 0.19509,
    "h": 273.5
  },
  "luminance": 0.10502
}

Semantic roles & 50–950 ramp

primary

#424BCB

secondary

#D2CE97

accent

#D648E0

background

#F9F7FD

surface

#F1EEFB

border

#CBC9D4

text

#0D0915

muted

#7E7B83

Preview Lab

Preview with #424BCB

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

Preview Lab → · Contrast checker → · Palette generator →