#403CBF#403CBF

#403CBF is a mid, vivid blue. Relative luminance 0.081; OKLCH L 45.0% C 0.197 H 276.3°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#403CBF
RGB	rgb(64, 60, 191)
HSL	hsl(242, 52%, 49%)
HSV	hsv(242, 69%, 75%)
CMYK	cmyk(66.5%, 68.6%, 0%, 25.1%)
CIE-LAB	lab(34.15, 42.30, -67.98)
CIE-LCH	lch(34.15, 80.07, 301.89°)
OKLab	oklab(45.01% 0.0216 -0.1963)
OKLCH	oklch(45.01% 0.197 276.3)
XYZ	xyz(13.1311, 8.0821, 50.1481)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.75

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403CBF #BBBF3C

analogous

#3C7ABF #403CBF #823CBF

triadic

#403CBF #BF403C #3CBF40

tetradic

#403CBF #BF3C7A #BBBF3C #3CBF82

square

#403CBF #BF3C7A #BBBF3C #3CBF82

split-complementary

#403CBF #BF823C #7ABF3C

monochromatic

#211F62 #302D90 #403CBF #6C68D0 #9997DE

Accessibility & contrast

On white

8.03

#403CBF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#403CBF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CBF

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CBF	#FFFFFF	#000000	##FFFFFF
##403CBF	1.00	8.03	2.62	8.03
#FFFFFF	8.03	1.00	21.00	1.00
#000000	2.62	21.00	1.00	21.00
##FFFFFF	8.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0056C3

Deuteranopia (green-blind)

#004BBD

Tritanopia (blue-blind)

#005F79

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403cbf;
/* rgb */ color: rgb(64, 60, 191);
/* oklch */ color: oklch(45.0% 0.197 276.3);

Tailwind

colors: {
  custom: {
    50: '#8573d3',
    500: '#403cbf',
    950: '#000000',
  },
}

SCSS

$custom: #403cbf;
$custom-light: #8573d3;
$custom-dark: #000000;

JSON

{
  "hex": "#403cbf",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 191
  },
  "hsl": {
    "h": 241.832,
    "s": 52.191,
    "l": 49.216
  },
  "oklch": {
    "l": 0.45013,
    "c": 0.19746,
    "h": 276.3
  },
  "luminance": 0.08083
}

Semantic roles & 50–950 ramp

primary

#403CBF

secondary

#C8CA8D

accent

#DC4CD7

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403CBF

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

Preview Lab → · Contrast checker → · Palette generator →