#403AB0#403AB0

#403AB0 is a dark, vivid blue. Relative luminance 0.073; OKLCH L 43.3% C 0.181 H 278.0°. Best body text is #FFFFFF at 8.57:1 contrast (WCAG AA passes).

Color values

HEX	#403AB0
RGB	rgb(64, 58, 176)
HSL	hsl(243, 50%, 46%)
HSV	hsv(243, 67%, 69%)
CMYK	cmyk(63.6%, 67%, 0%, 31%)
CIE-LAB	lab(32.37, 38.54, -62.03)
CIE-LCH	lch(32.37, 73.03, 301.85°)
OKLab	oklab(43.31% 0.0251 -0.1789)
OKLCH	oklch(43.31% 0.181 278)
XYZ	xyz(11.4614, 7.2498, 41.8612)
Luminance	0.0725 (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

#403AB0 #AAB03A

analogous

#3A6FB0 #403AB0 #7B3AB0

triadic

#403AB0 #B0403A #3AB040

tetradic

#403AB0 #B03A6F #AAB03A #3AB07B

square

#403AB0 #B03A6F #AAB03A #3AB07B

split-complementary

#403AB0 #B07B3A #6FB03A

monochromatic

#1F1C54 #2F2B82 #403AB0 #635DCA #8F8BD9

Accessibility & contrast

On white

8.57

#403AB0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.45

#403AB0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AB0

8.57:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AB0	#FFFFFF	#000000	##FFFFFF
##403AB0	1.00	8.57	2.45	8.57
#FFFFFF	8.57	1.00	21.00	1.00
#000000	2.45	21.00	1.00	21.00
##FFFFFF	8.57	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051B4

Deuteranopia (green-blind)

#0047AE

Tritanopia (blue-blind)

#005970

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403ab0;
/* rgb */ color: rgb(64, 58, 176);
/* oklch */ color: oklch(43.3% 0.181 278.0);

Tailwind

colors: {
  custom: {
    50: '#8271c9',
    500: '#403ab0',
    950: '#000000',
  },
}

SCSS

$custom: #403ab0;
$custom-light: #8271c9;
$custom-dark: #000000;

JSON

{
  "hex": "#403ab0",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 176
  },
  "hsl": {
    "h": 243.051,
    "s": 50.427,
    "l": 45.882
  },
  "oklch": {
    "l": 0.43312,
    "c": 0.18061,
    "h": 278
  },
  "luminance": 0.07251
}

Semantic roles & 50–950 ramp

primary

#403AB0

secondary

#C0C382

accent

#DA4ED3

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0813

muted

#7D7B82

Preview Lab

Preview with #403AB0

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

Preview Lab → · Contrast checker → · Palette generator →