#403AA6#403AA6

#403AA6 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.4% C 0.167 H 279.0°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#403AA6
RGB	rgb(64, 58, 166)
HSL	hsl(243, 48%, 44%)
HSV	hsv(243, 65%, 65%)
CMYK	cmyk(61.4%, 65.1%, 0%, 34.9%)
CIE-LAB	lab(31.51, 35.21, -57.46)
CIE-LCH	lch(31.51, 67.39, 301.50°)
OKLab	oklab(42.42% 0.0261 -0.1654)
OKLCH	oklch(42.42% 0.167 279)
XYZ	xyz(10.5081, 6.8685, 36.8410)
Luminance	0.0687 (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

#403AA6 #A0A63A

analogous

#3A6AA6 #403AA6 #763AA6

triadic

#403AA6 #A6403A #3AA640

tetradic

#403AA6 #A63A6A #A0A63A #3AA676

square

#403AA6 #A63A6A #A0A63A #3AA676

split-complementary

#403AA6 #A6763A #6AA63A

monochromatic

#1D1A4B #2F2A79 #403AA6 #5E58C5 #8A86D5

Accessibility & contrast

On white

8.85

#403AA6 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#403AA6 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AA6

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AA6	#FFFFFF	#000000	##FFFFFF
##403AA6	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA9

Deuteranopia (green-blind)

#0046A4

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403aa6;
/* rgb */ color: rgb(64, 58, 166);
/* oklch */ color: oklch(42.4% 0.167 279.0);

Tailwind

colors: {
  custom: {
    50: '#8071c1',
    500: '#403aa6',
    950: '#000000',
  },
}

SCSS

$custom: #403aa6;
$custom-light: #8071c1;
$custom-dark: #000000;

JSON

{
  "hex": "#403aa6",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 166
  },
  "hsl": {
    "h": 243.333,
    "s": 48.214,
    "l": 43.922
  },
  "oklch": {
    "l": 0.42419,
    "c": 0.16749,
    "h": 279
  },
  "luminance": 0.06869
}

Semantic roles & 50–950 ramp

primary

#403AA6

secondary

#BBBF7D

accent

#D850D0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403AA6

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

Preview Lab → · Contrast checker → · Palette generator →