#403A9F#403A9F

#403A9F is a dark, vivid blue. Relative luminance 0.066; OKLCH L 41.8% C 0.158 H 279.7°. Best body text is #FFFFFF at 9.04:1 contrast (WCAG AA passes).

Color values

HEX	#403A9F
RGB	rgb(64, 58, 159)
HSL	hsl(244, 47%, 43%)
HSV	hsv(244, 64%, 62%)
CMYK	cmyk(59.7%, 63.5%, 0%, 37.6%)
CIE-LAB	lab(30.92, 32.87, -54.19)
CIE-LCH	lch(30.92, 63.38, 301.24°)
OKLab	oklab(41.81% 0.0267 -0.1558)
OKLCH	oklch(41.81% 0.158 279.7)
XYZ	xyz(9.8834, 6.6186, 33.5509)
Luminance	0.0662 (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

#403A9F #999F3A

analogous

#3A679F #403A9F #723A9F

triadic

#403A9F #9F403A #3A9F40

tetradic

#403A9F #9F3A67 #999F3A #3A9F72

square

#403A9F #9F3A67 #999F3A #3A9F72

split-complementary

#403A9F #9F723A #679F3A

monochromatic

#1C1945 #2E2A72 #403A9F #5C55C1 #8782D1

Accessibility & contrast

On white

9.04

#403A9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.32

#403A9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403A9F

9.04:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403A9F	#FFFFFF	#000000	##FFFFFF
##403A9F	1.00	9.04	2.32	9.04
#FFFFFF	9.04	1.00	21.00	1.00
#000000	2.32	21.00	1.00	21.00
##FFFFFF	9.04	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004DA2

Deuteranopia (green-blind)

#00459D

Tritanopia (blue-blind)

#005367

Achromatopsia (no color)

#494949

Design tokens & code

CSS

--color: #403a9f;
/* rgb */ color: rgb(64, 58, 159);
/* oklch */ color: oklch(41.8% 0.158 279.7);

Tailwind

colors: {
  custom: {
    50: '#7f70bc',
    500: '#403a9f',
    950: '#000000',
  },
}

SCSS

$custom: #403a9f;
$custom-light: #7f70bc;
$custom-dark: #000000;

JSON

{
  "hex": "#403a9f",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 159
  },
  "hsl": {
    "h": 243.564,
    "s": 46.544,
    "l": 42.549
  },
  "oklch": {
    "l": 0.41812,
    "c": 0.1581,
    "h": 279.7
  },
  "luminance": 0.06619
}

Semantic roles & 50–950 ramp

primary

#403A9F

secondary

#B7BB7A

accent

#D652CE

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403A9F

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

Preview Lab → · Contrast checker → · Palette generator →