#403AA0#403AA0

#403AA0 is a dark, vivid blue. Relative luminance 0.067; OKLCH L 41.9% C 0.159 H 279.6°. Best body text is #FFFFFF at 9.01:1 contrast (WCAG AA passes).

Color values

HEX	#403AA0
RGB	rgb(64, 58, 160)
HSL	hsl(244, 47%, 43%)
HSV	hsv(244, 64%, 63%)
CMYK	cmyk(60%, 63.8%, 0%, 37.3%)
CIE-LAB	lab(31.00, 33.20, -54.66)
CIE-LCH	lch(31.00, 63.95, 301.28°)
OKLab	oklab(41.9% 0.0266 -0.1572)
OKLCH	oklch(41.9% 0.159 279.6)
XYZ	xyz(9.9706, 6.6535, 34.0097)
Luminance	0.0665 (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

#403AA0 #9AA03A

analogous

#3A67A0 #403AA0 #733AA0

triadic

#403AA0 #A0403A #3AA040

tetradic

#403AA0 #A03A67 #9AA03A #3AA073

square

#403AA0 #A03A67 #9AA03A #3AA073

split-complementary

#403AA0 #A0733A #67A03A

monochromatic

#1C1946 #2E2A73 #403AA0 #5C56C2 #8783D2

Accessibility & contrast

On white

9.01

#403AA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.33

#403AA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AA0

9.01:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AA0	#FFFFFF	#000000	##FFFFFF
##403AA0	1.00	9.01	2.33	9.01
#FFFFFF	9.01	1.00	21.00	1.00
#000000	2.33	21.00	1.00	21.00
##FFFFFF	9.01	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA3

Deuteranopia (green-blind)

#00459E

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #403aa0;
/* rgb */ color: rgb(64, 58, 160);
/* oklch */ color: oklch(41.9% 0.159 279.6);

Tailwind

colors: {
  custom: {
    50: '#7f70bd',
    500: '#403aa0',
    950: '#000000',
  },
}

SCSS

$custom: #403aa0;
$custom-light: #7f70bd;
$custom-dark: #000000;

JSON

{
  "hex": "#403aa0",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 160
  },
  "hsl": {
    "h": 243.529,
    "s": 46.789,
    "l": 42.745
  },
  "oklch": {
    "l": 0.41897,
    "c": 0.15946,
    "h": 279.6
  },
  "luminance": 0.06654
}

Semantic roles & 50–950 ramp

primary

#403AA0

secondary

#B8BC7A

accent

#D651CF

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403AA0

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

Preview Lab → · Contrast checker → · Palette generator →