#423EBF#423EBF

#423EBF is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.195 H 276.7°. Best body text is #FFFFFF at 7.86:1 contrast (WCAG AA passes).

Color values

HEX	#423EBF
RGB	rgb(66, 62, 191)
HSL	hsl(242, 51%, 50%)
HSV	hsv(242, 68%, 75%)
CMYK	cmyk(65.4%, 67.5%, 0%, 25.1%)
CIE-LAB	lab(34.73, 41.38, -67.03)
CIE-LCH	lch(34.73, 78.77, 301.69°)
OKLab	oklab(45.47% 0.0227 -0.1934)
OKLCH	oklch(45.47% 0.195 276.7)
XYZ	xyz(13.3703, 8.3640, 50.1899)
Luminance	0.0837 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.38

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423EBF #BBBF3E

analogous

#3E7BBF #423EBF #823EBF

triadic

#423EBF #BF423E #3EBF42

tetradic

#423EBF #BF3E7B #BBBF3E #3EBF82

square

#423EBF #BF3E7B #BBBF3E #3EBF82

split-complementary

#423EBF #BF823E #7BBF3E

monochromatic

#222063 #322F91 #423EBF #6E6BCF #9C99DE

Accessibility & contrast

On white

7.86

#423EBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.67

#423EBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423EBF

7.86:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423EBF	#FFFFFF	#000000	##FFFFFF
##423EBF	1.00	7.86	2.67	7.86
#FFFFFF	7.86	1.00	21.00	1.00
#000000	2.67	21.00	1.00	21.00
##FFFFFF	7.86	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0057C3

Deuteranopia (green-blind)

#004CBD

Tritanopia (blue-blind)

#006079

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #423ebf;
/* rgb */ color: rgb(66, 62, 191);
/* oklch */ color: oklch(45.5% 0.195 276.7);

Tailwind

colors: {
  custom: {
    50: '#8674d3',
    500: '#423ebf',
    950: '#000000',
  },
}

SCSS

$custom: #423ebf;
$custom-light: #8674d3;
$custom-dark: #000000;

JSON

{
  "hex": "#423ebf",
  "rgb": {
    "r": 66,
    "g": 62,
    "b": 191
  },
  "hsl": {
    "h": 241.86,
    "s": 50.988,
    "l": 49.608
  },
  "oklch": {
    "l": 0.45465,
    "c": 0.19477,
    "h": 276.7
  },
  "luminance": 0.08365
}

Semantic roles & 50–950 ramp

primary

#423EBF

secondary

#C8CA8F

accent

#DA4DD6

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #423EBF

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

Preview Lab → · Contrast checker → · Palette generator →