#403A9C#403A9C

#403A9C is a dark, vivid blue. Relative luminance 0.065; OKLCH L 41.6% C 0.154 H 280.1°. Best body text is #FFFFFF at 9.12:1 contrast (WCAG AA passes).

Color values

HEX	#403A9C
RGB	rgb(64, 58, 156)
HSL	hsl(244, 46%, 42%)
HSV	hsv(244, 63%, 61%)
CMYK	cmyk(59%, 62.8%, 0%, 38.8%)
CIE-LAB	lab(30.68, 31.87, -52.76)
CIE-LCH	lch(30.68, 61.64, 301.13°)
OKLab	oklab(41.56% 0.0269 -0.1516)
OKLCH	oklch(41.56% 0.154 280.1)
XYZ	xyz(9.6263, 6.5157, 32.1964)
Luminance	0.0652 (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

#403A9C #969C3A

analogous

#3A659C #403A9C #713A9C

triadic

#403A9C #9C403A #3A9C40

tetradic

#403A9C #9C3A65 #969C3A #3A9C71

square

#403A9C #9C3A65 #969C3A #3A9C71

split-complementary

#403A9C #9C713A #659C3A

monochromatic

#1B1943 #2E296F #403A9C #5A54BF #8580D0

Accessibility & contrast

On white

9.12

#403A9C on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.30

#403A9C on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403A9C

9.12:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403A9C	#FFFFFF	#000000	##FFFFFF
##403A9C	1.00	9.12	2.30	9.12
#FFFFFF	9.12	1.00	21.00	1.00
#000000	2.30	21.00	1.00	21.00
##FFFFFF	9.12	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004C9F

Deuteranopia (green-blind)

#00449A

Tritanopia (blue-blind)

#065265

Achromatopsia (no color)

#484848

Design tokens & code

CSS

--color: #403a9c;
/* rgb */ color: rgb(64, 58, 156);
/* oklch */ color: oklch(41.6% 0.154 280.1);

Tailwind

colors: {
  custom: {
    50: '#7e70ba',
    500: '#403a9c',
    950: '#000000',
  },
}

SCSS

$custom: #403a9c;
$custom-light: #7e70ba;
$custom-dark: #000000;

JSON

{
  "hex": "#403a9c",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 156
  },
  "hsl": {
    "h": 243.673,
    "s": 45.794,
    "l": 41.961
  },
  "oklch": {
    "l": 0.41556,
    "c": 0.15402,
    "h": 280.1
  },
  "luminance": 0.06516
}

Semantic roles & 50–950 ramp

primary

#403A9C

secondary

#B6BA78

accent

#D552CD

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0712

muted

#7C7A81

Preview Lab

Preview with #403A9C

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

Preview Lab → · Contrast checker → · Palette generator →