#403ABF#403ABF

#403ABF is a dark, vivid blue. Relative luminance 0.079; OKLCH L 44.7% C 0.200 H 276.6°. Best body text is #FFFFFF at 8.15:1 contrast (WCAG AA passes).

Color values

HEX	#403ABF
RGB	rgb(64, 58, 191)
HSL	hsl(243, 53%, 49%)
HSV	hsv(243, 70%, 75%)
CMYK	cmyk(66.5%, 69.6%, 0%, 25.1%)
CIE-LAB	lab(33.72, 43.47, -68.69)
CIE-LCH	lch(33.72, 81.29, 302.33°)
OKLab	oklab(44.7% 0.023 -0.1983)
OKLCH	oklch(44.7% 0.2 276.6)
XYZ	xyz(13.0283, 7.8766, 50.1139)
Luminance	0.0788 (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

#403ABF #B9BF3A

analogous

#3A77BF #403ABF #833ABF

triadic

#403ABF #BF403A #3ABF40

tetradic

#403ABF #BF3A77 #B9BF3A #3ABF83

square

#403ABF #BF3A77 #B9BF3A #3ABF83

split-complementary

#403ABF #BF833A #77BF3A

monochromatic

#211D61 #302C90 #403ABF #6B66D0 #9895DF

Accessibility & contrast

On white

8.15

#403ABF on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.58

#403ABF on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403ABF

8.15:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403ABF	#FFFFFF	#000000	##FFFFFF
##403ABF	1.00	8.15	2.58	8.15
#FFFFFF	8.15	1.00	21.00	1.00
#000000	2.58	21.00	1.00	21.00
##FFFFFF	8.15	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0055C3

Deuteranopia (green-blind)

#0049BD

Tritanopia (blue-blind)

#005E78

Achromatopsia (no color)

#4F4F4F

Design tokens & code

CSS

--color: #403abf;
/* rgb */ color: rgb(64, 58, 191);
/* oklch */ color: oklch(44.7% 0.200 276.6);

Tailwind

colors: {
  custom: {
    50: '#8571d3',
    500: '#403abf',
    950: '#000000',
  },
}

SCSS

$custom: #403abf;
$custom-light: #8571d3;
$custom-dark: #000000;

JSON

{
  "hex": "#403abf",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 191
  },
  "hsl": {
    "h": 242.707,
    "s": 53.414,
    "l": 48.824
  },
  "oklch": {
    "l": 0.44704,
    "c": 0.19966,
    "h": 276.6
  },
  "luminance": 0.07878
}

Semantic roles & 50–950 ramp

primary

#403ABF

secondary

#C7CA8B

accent

#DD4BD6

background

#F8F6FD

surface

#F0ECFA

border

#CBC7D3

text

#0C0814

muted

#7D7B83

Preview Lab

Preview with #403ABF

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

Preview Lab → · Contrast checker → · Palette generator →