#423DBE#423DBE

#423DBE is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.2% C 0.195 H 276.9°. Best body text is #FFFFFF at 7.95:1 contrast (WCAG AA passes).

Color values

HEX	#423DBE
RGB	rgb(66, 61, 190)
HSL	hsl(242, 51%, 49%)
HSV	hsv(242, 68%, 75%)
CMYK	cmyk(65.3%, 67.9%, 0%, 25.5%)
CIE-LAB	lab(34.42, 41.64, -66.95)
CIE-LCH	lch(34.42, 78.84, 301.88°)
OKLab	oklab(45.22% 0.0236 -0.1932)
OKLCH	oklch(45.22% 0.195 276.9)
XYZ	xyz(13.2068, 8.2123, 49.5944)
Luminance	0.0821 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.42

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423DBE #B9BE3D

analogous

#3D78BE #423DBE #833DBE

triadic

#423DBE #BE423D #3DBE42

tetradic

#423DBE #BE3D78 #B9BE3D #3DBE83

square

#423DBE #BE3D78 #B9BE3D #3DBE83

split-complementary

#423DBE #BE833D #78BE3D

monochromatic

#221F61 #322E90 #423DBE #6D69CF #9A98DE

Accessibility & contrast

On white

7.95

#423DBE on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.64

#423DBE on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DBE

7.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DBE	#FFFFFF	#000000	##FFFFFF
##423DBE	1.00	7.95	2.64	7.95
#FFFFFF	7.95	1.00	21.00	1.00
#000000	2.64	21.00	1.00	21.00
##FFFFFF	7.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C2

Deuteranopia (green-blind)

#004BBC

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423dbe;
/* rgb */ color: rgb(66, 61, 190);
/* oklch */ color: oklch(45.2% 0.195 276.9);

Tailwind

colors: {
  custom: {
    50: '#8673d3',
    500: '#423dbe',
    950: '#000000',
  },
}

SCSS

$custom: #423dbe;
$custom-light: #8673d3;
$custom-dark: #000000;

JSON

{
  "hex": "#423dbe",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 190
  },
  "hsl": {
    "h": 242.326,
    "s": 51.394,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45215,
    "c": 0.19463,
    "h": 276.9
  },
  "luminance": 0.08213
}

Semantic roles & 50–950 ramp

primary

#423DBE

secondary

#C7C98D

accent

#DB4DD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423DBE

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

Preview Lab → · Contrast checker → · Palette generator →