#423DCB#423DCB

#423DCB is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.4% C 0.211 H 275.9°. Best body text is #FFFFFF at 7.60:1 contrast (WCAG AA passes).

Color values

HEX	#423DCB
RGB	rgb(66, 61, 203)
HSL	hsl(242, 58%, 52%)
HSV	hsv(242, 70%, 80%)
CMYK	cmyk(67.5%, 70%, 0%, 20.4%)
CIE-LAB	lab(35.61, 45.89, -72.60)
CIE-LCH	lch(35.61, 85.88, 302.30°)
OKLab	oklab(46.43% 0.0217 -0.2097)
OKLCH	oklch(46.43% 0.211 275.9)
XYZ	xyz(14.6915, 8.8062, 57.4139)
Luminance	0.0881 (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

#423DCB #C6CB3D

analogous

#3D7FCB #423DCB #893DCB

triadic

#423DCB #CB423D #3DCB42

tetradic

#423DCB #CB3D7F #C6CB3D #3DCB89

square

#423DCB #CB3D7F #C6CB3D #3DCB89

split-complementary

#423DCB #CB893D #7FCB3D

monochromatic

#211E70 #2F2BA0 #423DCB #716DD8 #A09EE5

Accessibility & contrast

On white

7.60

#423DCB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.76

#423DCB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DCB

7.60:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DCB	#FFFFFF	#000000	##FFFFFF
##423DCB	1.00	7.60	2.76	7.60
#FFFFFF	7.60	1.00	21.00	1.00
#000000	2.76	21.00	1.00	21.00
##FFFFFF	7.60	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005ACF

Deuteranopia (green-blind)

#004DC8

Tritanopia (blue-blind)

#00647F

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #423dcb;
/* rgb */ color: rgb(66, 61, 203);
/* oklch */ color: oklch(46.4% 0.211 275.9);

Tailwind

colors: {
  custom: {
    50: '#8874dc',
    500: '#423dcb',
    950: '#000000',
  },
}

SCSS

$custom: #423dcb;
$custom-light: #8874dc;
$custom-dark: #000000;

JSON

{
  "hex": "#423dcb",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 203
  },
  "hsl": {
    "h": 242.113,
    "s": 57.724,
    "l": 51.765
  },
  "oklch": {
    "l": 0.46431,
    "c": 0.21084,
    "h": 275.9
  },
  "luminance": 0.08808
}

Semantic roles & 50–950 ramp

primary

#423DCB

secondary

#CFD193

accent

#E147DC

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423DCB

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

Preview Lab → · Contrast checker → · Palette generator →