#403AA5#403AA5

#403AA5 is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.3% C 0.166 H 279.1°. Best body text is #FFFFFF at 8.87:1 contrast (WCAG AA passes).

Color values

HEX	#403AA5
RGB	rgb(64, 58, 165)
HSL	hsl(243, 48%, 44%)
HSV	hsv(243, 65%, 65%)
CMYK	cmyk(61.2%, 64.8%, 0%, 35.3%)
CIE-LAB	lab(31.42, 34.88, -56.99)
CIE-LCH	lch(31.42, 66.82, 301.46°)
OKLab	oklab(42.33% 0.0262 -0.1641)
OKLCH	oklch(42.33% 0.166 279.1)
XYZ	xyz(10.4168, 6.8319, 36.3598)
Luminance	0.0683 (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

#403AA5 #9FA53A

analogous

#3A69A5 #403AA5 #753AA5

triadic

#403AA5 #A5403A #3AA540

tetradic

#403AA5 #A53A69 #9FA53A #3AA575

square

#403AA5 #A53A69 #9FA53A #3AA575

split-complementary

#403AA5 #A5753A #69A53A

monochromatic

#1D1A4A #2E2A78 #403AA5 #5E58C4 #8A85D4

Accessibility & contrast

On white

8.87

#403AA5 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#403AA5 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AA5

8.87:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AA5	#FFFFFF	#000000	##FFFFFF
##403AA5	1.00	8.87	2.37	8.87
#FFFFFF	8.87	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.87	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA8

Deuteranopia (green-blind)

#0046A3

Tritanopia (blue-blind)

#00556A

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403aa5;
/* rgb */ color: rgb(64, 58, 165);
/* oklch */ color: oklch(42.3% 0.166 279.1);

Tailwind

colors: {
  custom: {
    50: '#8071c1',
    500: '#403aa5',
    950: '#000000',
  },
}

SCSS

$custom: #403aa5;
$custom-light: #8071c1;
$custom-dark: #000000;

JSON

{
  "hex": "#403aa5",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 165
  },
  "hsl": {
    "h": 243.364,
    "s": 47.982,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42331,
    "c": 0.16616,
    "h": 279.1
  },
  "luminance": 0.06833
}

Semantic roles & 50–950 ramp

primary

#403AA5

secondary

#BBBE7D

accent

#D850D0

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403AA5

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

Preview Lab → · Contrast checker → · Palette generator →