#423DBF#423DBF

#423DBF is a mid, vivid blue. Relative luminance 0.083; OKLCH L 45.3% C 0.196 H 276.9°. Best body text is #FFFFFF at 7.92:1 contrast (WCAG AA passes).

Color values

HEX	#423DBF
RGB	rgb(66, 61, 191)
HSL	hsl(242, 52%, 49%)
HSV	hsv(242, 68%, 75%)
CMYK	cmyk(65.4%, 68.1%, 0%, 25.1%)
CIE-LAB	lab(34.51, 41.97, -67.39)
CIE-LCH	lch(34.51, 79.39, 301.91°)
OKLab	oklab(45.31% 0.0234 -0.1945)
OKLCH	oklch(45.31% 0.196 276.9)
XYZ	xyz(13.3164, 8.2562, 50.1720)
Luminance	0.0826 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.48

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423DBF #BABF3D

analogous

#3D79BF #423DBF #833DBF

triadic

#423DBF #BF423D #3DBF42

tetradic

#423DBF #BF3D79 #BABF3D #3DBF83

square

#423DBF #BF3D79 #BABF3D #3DBF83

split-complementary

#423DBF #BF833D #79BF3D

monochromatic

#221F62 #322E91 #423DBF #6E6ACF #9B98DE

Accessibility & contrast

On white

7.92

#423DBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.65

#423DBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423DBF

7.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423DBF	#FFFFFF	#000000	##FFFFFF
##423DBF	1.00	7.92	2.65	7.92
#FFFFFF	7.92	1.00	21.00	1.00
#000000	2.65	21.00	1.00	21.00
##FFFFFF	7.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004CBD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#515151

Design tokens & code

CSS

--color: #423dbf;
/* rgb */ color: rgb(66, 61, 191);
/* oklch */ color: oklch(45.3% 0.196 276.9);

Tailwind

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

SCSS

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

JSON

{
  "hex": "#423dbf",
  "rgb": {
    "r": 66,
    "g": 61,
    "b": 191
  },
  "hsl": {
    "h": 242.308,
    "s": 51.587,
    "l": 49.412
  },
  "oklch": {
    "l": 0.45307,
    "c": 0.1959,
    "h": 276.9
  },
  "luminance": 0.08257
}

Semantic roles & 50–950 ramp

primary

#423DBF

secondary

#C8CA8E

accent

#DB4DD6

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423DBF

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

Preview Lab → · Contrast checker → · Palette generator →