#423BD0#423BD0

#423BD0 is a mid, highly saturated blue. Relative luminance 0.088; OKLCH L 46.6% C 0.219 H 275.8°. Best body text is #FFFFFF at 7.59:1 contrast (WCAG AA passes).

Color values

HEX	#423BD0
RGB	rgb(66, 59, 208)
HSL	hsl(243, 61%, 52%)
HSV	hsv(243, 72%, 82%)
CMYK	cmyk(68.3%, 71.6%, 0%, 18.4%)
CIE-LAB	lab(35.67, 48.63, -75.39)
CIE-LCH	lch(35.67, 89.71, 302.82°)
OKLab	oklab(46.62% 0.0221 -0.2179)
OKLCH	oklch(46.62% 0.219 275.8)
XYZ	xyz(15.1922, 8.8389, 60.5677)
Luminance	0.0884 (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

#423BD0 #C9D03B

analogous

#3B7ED0 #423BD0 #8D3BD0

triadic

#423BD0 #D0423B #3BD042

tetradic

#423BD0 #D03B7E #C9D03B #3BD08D

square

#423BD0 #D03B7E #C9D03B #3BD08D

split-complementary

#423BD0 #D08D3B #7ED03B

monochromatic

#201C75 #2E28A6 #423BD0 #726CDC #A19EE8

Accessibility & contrast

On white

7.59

#423BD0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.77

#423BD0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423BD0

7.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423BD0	#FFFFFF	#000000	##FFFFFF
##423BD0	1.00	7.59	2.77	7.59
#FFFFFF	7.59	1.00	21.00	1.00
#000000	2.77	21.00	1.00	21.00
##FFFFFF	7.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005AD4

Deuteranopia (green-blind)

#004DCD

Tritanopia (blue-blind)

#006582

Achromatopsia (no color)

#545454

Design tokens & code

CSS

--color: #423bd0;
/* rgb */ color: rgb(66, 59, 208);
/* oklch */ color: oklch(46.6% 0.219 275.8);

Tailwind

colors: {
  custom: {
    50: '#8973e0',
    500: '#423bd0',
    950: '#000000',
  },
}

SCSS

$custom: #423bd0;
$custom-light: #8973e0;
$custom-dark: #000000;

JSON

{
  "hex": "#423bd0",
  "rgb": {
    "r": 66,
    "g": 59,
    "b": 208
  },
  "hsl": {
    "h": 242.819,
    "s": 61.317,
    "l": 52.353
  },
  "oklch": {
    "l": 0.46619,
    "c": 0.219,
    "h": 275.8
  },
  "luminance": 0.0884
}

Semantic roles & 50–950 ramp

primary

#423BD0

secondary

#D1D493

accent

#E443DD

background

#F9F7FD

surface

#F2EDFB

border

#CCC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423BD0

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

Preview Lab → · Contrast checker → · Palette generator →