#4340CB#4340CB

#4340CB is a mid, highly saturated blue. Relative luminance 0.092; OKLCH L 47.0% C 0.207 H 275.8°. Best body text is #FFFFFF at 7.41:1 contrast (WCAG AA passes).

Color values

HEX	#4340CB
RGB	rgb(67, 64, 203)
HSL	hsl(241, 57%, 52%)
HSV	hsv(241, 68%, 80%)
CMYK	cmyk(67%, 68.5%, 0%, 20.4%)
CIE-LAB	lab(36.31, 44.27, -71.44)
CIE-LCH	lch(36.31, 84.04, 301.78°)
OKLab	oklab(46.95% 0.021 -0.2063)
OKLCH	oklch(46.95% 0.207 275.8)
XYZ	xyz(14.9241, 9.1706, 57.4719)
Luminance	0.0917 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#4340CB #C8CB40

analogous

#4083CB #4340CB #8940CB

triadic

#4340CB #CB4340 #40CB43

tetradic

#4340CB #CB4083 #C8CB40 #40CB89

square

#4340CB #CB4083 #C8CB40 #40CB89

split-complementary

#4340CB #CB8940 #83CB40

monochromatic

#211F72 #2F2CA2 #4340CB #7270D8 #A2A0E5

Accessibility & contrast

On white

7.41

#4340CB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.83

#4340CB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #4340CB

7.41:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##4340CB	#FFFFFF	#000000	##FFFFFF
##4340CB	1.00	7.41	2.83	7.41
#FFFFFF	7.41	1.00	21.00	1.00
#000000	2.83	21.00	1.00	21.00
##FFFFFF	7.41	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#005CCF

Deuteranopia (green-blind)

#004FC8

Tritanopia (blue-blind)

#006580

Achromatopsia (no color)

#555555

Design tokens & code

CSS

--color: #4340cb;
/* rgb */ color: rgb(67, 64, 203);
/* oklch */ color: oklch(47.0% 0.207 275.8);

Tailwind

colors: {
  custom: {
    50: '#8876dc',
    500: '#4340cb',
    950: '#000000',
  },
}

SCSS

$custom: #4340cb;
$custom-light: #8876dc;
$custom-dark: #000000;

JSON

{
  "hex": "#4340cb",
  "rgb": {
    "r": 67,
    "g": 64,
    "b": 203
  },
  "hsl": {
    "h": 241.295,
    "s": 57.202,
    "l": 52.353
  },
  "oklch": {
    "l": 0.46953,
    "c": 0.20738,
    "h": 275.8
  },
  "luminance": 0.09172
}

Semantic roles & 50–950 ramp

primary

#4340CB

secondary

#D0D295

accent

#E047DD

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #4340CB

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

Preview Lab → · Contrast checker → · Palette generator →