#403EC1#403EC1

#403EC1 is a mid, vivid blue. Relative luminance 0.084; OKLCH L 45.5% C 0.198 H 275.8°. Best body text is #FFFFFF at 7.84:1 contrast (WCAG AA passes).

Color values

HEX	#403EC1
RGB	rgb(64, 62, 193)
HSL	hsl(241, 51%, 50%)
HSV	hsv(241, 68%, 76%)
CMYK	cmyk(66.8%, 67.9%, 0%, 24.3%)
CIE-LAB	lab(34.77, 41.78, -68.14)
CIE-LCH	lch(34.77, 79.93, 301.51°)
OKLab	oklab(45.51% 0.02 -0.1967)
OKLCH	oklch(45.51% 0.198 275.8)
XYZ	xyz(13.4595, 8.3843, 51.3508)
Luminance	0.0838 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.68

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403EC1 #BFC13E

analogous

#3E7EC1 #403EC1 #813EC1

triadic

#403EC1 #C1403E #3EC140

tetradic

#403EC1 #C13E7E #BFC13E #3EC181

square

#403EC1 #C13E7E #BFC13E #3EC181

split-complementary

#403EC1 #C1813E #7EC13E

monochromatic

#212064 #312F93 #403EC1 #6E6CD0 #9C9BDF

Accessibility & contrast

On white

7.84

#403EC1 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.68

#403EC1 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EC1

7.84:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EC1	#FFFFFF	#000000	##FFFFFF
##403EC1	1.00	7.84	2.68	7.84
#FFFFFF	7.84	1.00	21.00	1.00
#000000	2.68	21.00	1.00	21.00
##FFFFFF	7.84	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0058C5

Deuteranopia (green-blind)

#004CBF

Tritanopia (blue-blind)

#00617A

Achromatopsia (no color)

#525252

Design tokens & code

CSS

--color: #403ec1;
/* rgb */ color: rgb(64, 62, 193);
/* oklch */ color: oklch(45.5% 0.198 275.8);

Tailwind

colors: {
  custom: {
    50: '#8574d5',
    500: '#403ec1',
    950: '#000000',
  },
}

SCSS

$custom: #403ec1;
$custom-light: #8574d5;
$custom-dark: #000000;

JSON

{
  "hex": "#403ec1",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 193
  },
  "hsl": {
    "h": 240.916,
    "s": 51.373,
    "l": 50
  },
  "oklch": {
    "l": 0.45514,
    "c": 0.19775,
    "h": 275.8
  },
  "luminance": 0.08385
}

Semantic roles & 50–950 ramp

primary

#403EC1

secondary

#CACB90

accent

#DB4DD9

background

#F8F7FD

surface

#F0EDFA

border

#CBC8D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403EC1

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

Preview Lab → · Contrast checker → · Palette generator →