#423DBC#423DBC

#423DBC is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.192 H 277.1°. Best body text is #FFFFFF at 8.00:1 contrast (WCAG AA passes).

Color values

HEX	#423DBC
RGB	rgb(66, 61, 188)
HSL	hsl(242, 51%, 49%)
HSV	hsv(242, 68%, 74%)
CMYK	cmyk(64.9%, 67.6%, 0%, 26.3%)
CIE-LAB	lab(34.24, 40.98, -66.06)
CIE-LCH	lch(34.24, 77.74, 301.81°)
OKLab	oklab(45.03% 0.0238 -0.1906)
OKLCH	oklch(45.03% 0.192 277.1)
XYZ	xyz(12.9897, 8.1255, 48.4510)
Luminance	0.0813 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.31

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423DBC #B7BC3D

analogous

#3D78BC #423DBC #823DBC

triadic

#423DBC #BC423D #3DBC42

tetradic

#423DBC #BC3D78 #B7BC3D #3DBC82

square

#423DBC #BC3D78 #B7BC3D #3DBC82

split-complementary

#423DBC #BC823D #78BC3D

monochromatic

#221F60 #322E8E #423DBC #6C68CE #9996DD

Accessibility & contrast

On white

8.00

#423DBC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#423DBC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DBC

8.00:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DBC	#FFFFFF	#000000	##FFFFFF
##423DBC	1.00	8.00	2.63	8.00
#FFFFFF	8.00	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	8.00	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C0

Deuteranopia (green-blind)

#004BBA

Tritanopia (blue-blind)

#005F77

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423dbc;
/* rgb */ color: rgb(66, 61, 188);
/* oklch */ color: oklch(45.0% 0.192 277.1);

Tailwind

colors: {
  custom: {
    50: '#8573d1',
    500: '#423dbc',
    950: '#000000',
  },
}

SCSS

$custom: #423dbc;
$custom-light: #8573d1;
$custom-dark: #000000;

JSON

{
  "hex": "#423dbc",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 188
  },
  "hsl": {
    "h": 242.362,
    "s": 51.004,
    "l": 48.824
  },
  "oklch": {
    "l": 0.45031,
    "c": 0.19209,
    "h": 277.1
  },
  "luminance": 0.08127
}

Semantic roles & 50–950 ramp

primary

#423DBC

secondary

#C6C98C

accent

#DA4DD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423DBC

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

Preview Lab → · Contrast checker → · Palette generator →