#403AA8#403AA8

#403AA8 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.6% C 0.170 H 278.8°. Best body text is #FFFFFF at 8.79:1 contrast (WCAG AA passes).

Color values

HEX	#403AA8
RGB	rgb(64, 58, 168)
HSL	hsl(243, 49%, 44%)
HSV	hsv(243, 65%, 66%)
CMYK	cmyk(61.9%, 65.5%, 0%, 34.1%)
CIE-LAB	lab(31.68, 35.88, -58.38)
CIE-LCH	lch(31.68, 68.53, 301.57°)
OKLab	oklab(42.6% 0.0259 -0.1681)
OKLCH	oklch(42.6% 0.17 278.8)
XYZ	xyz(10.6930, 6.9424, 37.8147)
Luminance	0.0694 (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

#403AA8 #A2A83A

analogous

#3A6BA8 #403AA8 #773AA8

triadic

#403AA8 #A8403A #3AA840

tetradic

#403AA8 #A83A6B #A2A83A #3AA877

square

#403AA8 #A83A6B #A2A83A #3AA877

split-complementary

#403AA8 #A8773A #6BA83A

monochromatic

#1D1B4D #2F2A7B #403AA8 #5F59C6 #8B87D6

Accessibility & contrast

On white

8.79

#403AA8 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.39

#403AA8 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AA8

8.79:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AA8	#FFFFFF	#000000	##FFFFFF
##403AA8	1.00	8.79	2.39	8.79
#FFFFFF	8.79	1.00	21.00	1.00
#000000	2.39	21.00	1.00	21.00
##FFFFFF	8.79	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAB

Deuteranopia (green-blind)

#0046A6

Tritanopia (blue-blind)

#00566C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403aa8;
/* rgb */ color: rgb(64, 58, 168);
/* oklch */ color: oklch(42.6% 0.170 278.8);

Tailwind

colors: {
  custom: {
    50: '#8171c3',
    500: '#403aa8',
    950: '#000000',
  },
}

SCSS

$custom: #403aa8;
$custom-light: #8171c3;
$custom-dark: #000000;

JSON

{
  "hex": "#403aa8",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 168
  },
  "hsl": {
    "h": 243.273,
    "s": 48.673,
    "l": 44.314
  },
  "oklch": {
    "l": 0.42595,
    "c": 0.17014,
    "h": 278.8
  },
  "luminance": 0.06943
}

Semantic roles & 50–950 ramp

primary

#403AA8

secondary

#BCC07E

accent

#D850D1

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #403AA8

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

Preview Lab → · Contrast checker → · Palette generator →