#403EBA#403EBA

#403EBA is a dark, vivid blue. Relative luminance 0.081; OKLCH L 44.9% C 0.189 H 276.3°. Best body text is #FFFFFF at 8.03:1 contrast (WCAG AA passes).

Color values

HEX	#403EBA
RGB	rgb(64, 62, 186)
HSL	hsl(241, 50%, 49%)
HSV	hsv(241, 67%, 73%)
CMYK	cmyk(65.6%, 66.7%, 0%, 27.1%)
CIE-LAB	lab(34.15, 39.45, -65.05)
CIE-LCH	lch(34.15, 76.07, 301.23°)
OKLab	oklab(44.87% 0.0208 -0.1877)
OKLCH	oklch(44.87% 0.189 276.3)
XYZ	xyz(12.6970, 8.0793, 47.3352)
Luminance	0.0808 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Ocean Blue

#4F42B5

ΔE00 2.34

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403EBA #B8BA3E

analogous

#3E7ABA #403EBA #7E3EBA

triadic

#403EBA #BA403E #3EBA40

tetradic

#403EBA #BA3E7A #B8BA3E #3EBA7E

square

#403EBA #BA3E7A #B8BA3E #3EBA7E

split-complementary

#403EBA #BA7E3E #7ABA3E

monochromatic

#201F5E #302F8C #403EBA #6A68CD #9796DC

Accessibility & contrast

On white

8.03

#403EBA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.62

#403EBA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403EBA

8.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403EBA	#FFFFFF	#000000	##FFFFFF
##403EBA	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)

#0056BE

Deuteranopia (green-blind)

#004BB8

Tritanopia (blue-blind)

#005F76

Achromatopsia (no color)

#505050

Design tokens & code

CSS

--color: #403eba;
/* rgb */ color: rgb(64, 62, 186);
/* oklch */ color: oklch(44.9% 0.189 276.3);

Tailwind

colors: {
  custom: {
    50: '#8474d0',
    500: '#403eba',
    950: '#000000',
  },
}

SCSS

$custom: #403eba;
$custom-light: #8474d0;
$custom-dark: #000000;

JSON

{
  "hex": "#403eba",
  "rgb": {
    "r": 64,
    "g": 62,
    "b": 186
  },
  "hsl": {
    "h": 240.968,
    "s": 50,
    "l": 48.627
  },
  "oklch": {
    "l": 0.44872,
    "c": 0.18883,
    "h": 276.3
  },
  "luminance": 0.0808
}

Semantic roles & 50–950 ramp

primary

#403EBA

secondary

#C7C88C

accent

#DA4ED7

background

#F8F7FC

surface

#F0EDF9

border

#CBC8D2

text

#0C0814

muted

#7D7B82

Preview Lab

Preview with #403EBA

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

Preview Lab → · Contrast checker → · Palette generator →