#423DBD#423DBD

#423DBD is a mid, vivid blue. Relative luminance 0.082; OKLCH L 45.1% C 0.193 H 277.0°. Best body text is #FFFFFF at 7.97:1 contrast (WCAG AA passes).

Color values

HEX	#423DBD
RGB	rgb(66, 61, 189)
HSL	hsl(242, 51%, 49%)
HSV	hsv(242, 68%, 74%)
CMYK	cmyk(65.1%, 67.7%, 0%, 25.9%)
CIE-LAB	lab(34.33, 41.31, -66.51)
CIE-LCH	lch(34.33, 78.29, 301.85°)
OKLab	oklab(45.12% 0.0237 -0.1919)
OKLCH	oklch(45.12% 0.193 277)
XYZ	xyz(13.0978, 8.1688, 49.0207)
Luminance	0.0817 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.36

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423DBD #B8BD3D

analogous

#3D78BD #423DBD #823DBD

triadic

#423DBD #BD423D #3DBD42

tetradic

#423DBD #BD3D78 #B8BD3D #3DBD82

square

#423DBD #BD3D78 #B8BD3D #3DBD82

split-complementary

#423DBD #BD823D #78BD3D

monochromatic

#221F60 #322E8F #423DBD #6D69CE #9A97DD

Accessibility & contrast

On white

7.97

#423DBD on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.63

#423DBD on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DBD

7.97:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DBD	#FFFFFF	#000000	##FFFFFF
##423DBD	1.00	7.97	2.63	7.97
#FFFFFF	7.97	1.00	21.00	1.00
#000000	2.63	21.00	1.00	21.00
##FFFFFF	7.97	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C1

Deuteranopia (green-blind)

#004BBB

Tritanopia (blue-blind)

#005F78

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423dbd;
/* rgb */ color: rgb(66, 61, 189);
/* oklch */ color: oklch(45.1% 0.193 277.0);

Tailwind

colors: {
  custom: {
    50: '#8573d2',
    500: '#423dbd',
    950: '#000000',
  },
}

SCSS

$custom: #423dbd;
$custom-light: #8573d2;
$custom-dark: #000000;

JSON

{
  "hex": "#423dbd",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 189
  },
  "hsl": {
    "h": 242.344,
    "s": 51.2,
    "l": 49.02
  },
  "oklch": {
    "l": 0.45123,
    "c": 0.19337,
    "h": 277
  },
  "luminance": 0.0817
}

Semantic roles & 50–950 ramp

primary

#423DBD

secondary

#C7C98D

accent

#DB4DD5

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423DBD

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

Preview Lab → · Contrast checker → · Palette generator →