#423DC9#423DC9

#423DC9 is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.2% C 0.208 H 276.1°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#423DC9
RGB	rgb(66, 61, 201)
HSL	hsl(242, 56%, 51%)
HSV	hsv(242, 70%, 79%)
CMYK	cmyk(67.2%, 69.7%, 0%, 21.2%)
CIE-LAB	lab(35.42, 45.24, -71.74)
CIE-LCH	lch(35.42, 84.81, 302.23°)
OKLab	oklab(46.24% 0.022 -0.2072)
OKLCH	oklch(46.24% 0.208 276.1)
XYZ	xyz(14.4547, 8.7115, 56.1668)
Luminance	0.0871 (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

#423DC9 #C4C93D

analogous

#3D7EC9 #423DC9 #883DC9

triadic

#423DC9 #C9423D #3DC942

tetradic

#423DC9 #C93D7E #C4C93D #3DC988

square

#423DC9 #C93D7E #C4C93D #3DC988

split-complementary

#423DC9 #C9883D #7EC93D

monochromatic

#211E6D #302C9D #423DC9 #716DD6 #9F9DE4

Accessibility & contrast

On white

7.66

#423DC9 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#423DC9 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DC9

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DC9	#FFFFFF	#000000	##FFFFFF
##423DC9	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CD

Deuteranopia (green-blind)

#004DC6

Tritanopia (blue-blind)

#00637E

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423dc9;
/* rgb */ color: rgb(66, 61, 201);
/* oklch */ color: oklch(46.2% 0.208 276.1);

Tailwind

colors: {
  custom: {
    50: '#8874db',
    500: '#423dc9',
    950: '#000000',
  },
}

SCSS

$custom: #423dc9;
$custom-light: #8874db;
$custom-dark: #000000;

JSON

{
  "hex": "#423dc9",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 201
  },
  "hsl": {
    "h": 242.143,
    "s": 56.452,
    "l": 51.373
  },
  "oklch": {
    "l": 0.46241,
    "c": 0.20838,
    "h": 276.1
  },
  "luminance": 0.08713
}

Semantic roles & 50–950 ramp

primary

#423DC9

secondary

#CED092

accent

#E048DA

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423DC9

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

Preview Lab → · Contrast checker → · Palette generator →