#403FC2#403FC2

#403FC2 is a mid, vivid blue. Relative luminance 0.085; OKLCH L 45.8% C 0.198 H 275.6°. Best body text is #FFFFFF at 7.75:1 contrast (WCAG AA passes).

Color values

HEX	#403FC2
RGB	rgb(64, 63, 194)
HSL	hsl(240, 52%, 50%)
HSV	hsv(240, 68%, 76%)
CMYK	cmyk(67%, 67.5%, 0%, 23.9%)
CIE-LAB	lab(35.08, 41.51, -68.22)
CIE-LCH	lch(35.08, 79.86, 301.32°)
OKLab	oklab(45.77% 0.0192 -0.197)
OKLCH	oklch(45.77% 0.198 275.6)
XYZ	xyz(13.6263, 8.5388, 51.9585)
Luminance	0.0854 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.70

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FC2 #C1C23F

analogous

#3F7FC2 #403FC2 #813FC2

triadic

#403FC2 #C2403F #3FC240

tetradic

#403FC2 #C23F7F #C1C23F #3FC281

square

#403FC2 #C23F7F #C1C23F #3FC281

split-complementary

#403FC2 #C2813F #7FC23F

monochromatic

#212066 #302F95 #403FC2 #6E6DD1 #9C9CE0

Accessibility & contrast

On white

7.75

#403FC2 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.71

#403FC2 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FC2

7.75:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FC2	#FFFFFF	#000000	##FFFFFF
##403FC2	1.00	7.75	2.71	7.75
#FFFFFF	7.75	1.00	21.00	1.00
#000000	2.71	21.00	1.00	21.00
##FFFFFF	7.75	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C6

Deuteranopia (green-blind)

#004DC0

Tritanopia (blue-blind)

#00627B

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #403fc2;
/* rgb */ color: rgb(64, 63, 194);
/* oklch */ color: oklch(45.8% 0.198 275.6);

Tailwind

colors: {
  custom: {
    50: '#8575d6',
    500: '#403fc2',
    950: '#000000',
  },
}

SCSS

$custom: #403fc2;
$custom-light: #8575d6;
$custom-dark: #000000;

JSON

{
  "hex": "#403fc2",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 194
  },
  "hsl": {
    "h": 240.458,
    "s": 51.779,
    "l": 50.392
  },
  "oklch": {
    "l": 0.45765,
    "c": 0.1979,
    "h": 275.6
  },
  "luminance": 0.0854
}

Semantic roles & 50–950 ramp

primary

#403FC2

secondary

#CBCC91

accent

#DB4DDA

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403FC2

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

Preview Lab → · Contrast checker → · Palette generator →