#4340C0#4340C0

#4340C0 is a mid, vivid blue. Relative luminance 0.087; OKLCH L 45.9% C 0.194 H 276.6°. Best body text is #FFFFFF at 7.68:1 contrast (WCAG AA passes).

Color values

HEX	#4340C0
RGB	rgb(67, 64, 192)
HSL	hsl(241, 50%, 50%)
HSV	hsv(241, 67%, 75%)
CMYK	cmyk(65.1%, 66.7%, 0%, 24.7%)
CIE-LAB	lab(35.33, 40.65, -66.63)
CIE-LCH	lch(35.33, 78.05, 301.39°)
OKLab	oklab(45.95% 0.0223 -0.1922)
OKLCH	oklch(45.95% 0.194 276.6)
XYZ	xyz(13.6595, 8.6647, 50.8116)
Luminance	0.0867 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.25

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4340C0 #BDC040

analogous

#407DC0 #4340C0 #8340C0

triadic

#4340C0 #C04340 #40C043

tetradic

#4340C0 #C0407D #BDC040 #40C083

square

#4340C0 #C0407D #BDC040 #40C083

split-complementary

#4340C0 #C08340 #7DC040

monochromatic

#232164 #333092 #4340C0 #706ECF #9E9CDE

Accessibility & contrast

On white

7.68

#4340C0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.73

#4340C0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4340C0

7.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340C0	#FFFFFF	#000000	##FFFFFF
##4340C0	1.00	7.68	2.73	7.68
#FFFFFF	7.68	1.00	21.00	1.00
#000000	2.73	21.00	1.00	21.00
##FFFFFF	7.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059C4

Deuteranopia (green-blind)

#004DBE

Tritanopia (blue-blind)

#00627A

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #4340c0;
/* rgb */ color: rgb(67, 64, 192);
/* oklch */ color: oklch(45.9% 0.194 276.6);

Tailwind

colors: {
  custom: {
    50: '#8675d4',
    500: '#4340c0',
    950: '#000000',
  },
}

SCSS

$custom: #4340c0;
$custom-light: #8675d4;
$custom-dark: #000000;

JSON

{
  "hex": "#4340c0",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 192
  },
  "hsl": {
    "h": 241.406,
    "s": 50.394,
    "l": 50.196
  },
  "oklch": {
    "l": 0.45945,
    "c": 0.19352,
    "h": 276.6
  },
  "luminance": 0.08666
}

Semantic roles & 50–950 ramp

primary

#4340C0

secondary

#C9CB91

accent

#DA4ED7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #4340C0

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

Preview Lab → · Contrast checker → · Palette generator →