#403CA0#403CA0

#403CA0 is a dark, vivid blue. Relative luminance 0.069; OKLCH L 42.2% C 0.157 H 279.1°. Best body text is #FFFFFF at 8.85:1 contrast (WCAG AA passes).

Color values

HEX	#403CA0
RGB	rgb(64, 60, 160)
HSL	hsl(242, 45%, 43%)
HSV	hsv(242, 63%, 63%)
CMYK	cmyk(60%, 62.5%, 0%, 37.3%)
CIE-LAB	lab(31.48, 31.95, -53.88)
CIE-LCH	lch(31.48, 62.64, 300.67°)
OKLab	oklab(42.25% 0.0247 -0.1549)
OKLCH	oklch(42.25% 0.157 279.1)
XYZ	xyz(10.0734, 6.8591, 34.0440)
Luminance	0.0686 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.22

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403CA0 #9CA03C

analogous

#3C6AA0 #403CA0 #723CA0

triadic

#403CA0 #A0403C #3CA040

tetradic

#403CA0 #A03C6A #9CA03C #3CA072

square

#403CA0 #A03C6A #9CA03C #3CA072

split-complementary

#403CA0 #A0723C #6AA03C

monochromatic

#1C1B47 #2E2B73 #403CA0 #5D59C1 #8885D1

Accessibility & contrast

On white

8.85

#403CA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#403CA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CA0

8.85:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CA0	#FFFFFF	#000000	##FFFFFF
##403CA0	1.00	8.85	2.37	8.85
#FFFFFF	8.85	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.85	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA3

Deuteranopia (green-blind)

#00469E

Tritanopia (blue-blind)

#005568

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403ca0;
/* rgb */ color: rgb(64, 60, 160);
/* oklch */ color: oklch(42.2% 0.157 279.1);

Tailwind

colors: {
  custom: {
    50: '#7f72bd',
    500: '#403ca0',
    950: '#000000',
  },
}

SCSS

$custom: #403ca0;
$custom-light: #7f72bd;
$custom-dark: #000000;

JSON

{
  "hex": "#403ca0",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 160
  },
  "hsl": {
    "h": 242.4,
    "s": 45.455,
    "l": 43.137
  },
  "oklch": {
    "l": 0.42248,
    "c": 0.15687,
    "h": 279.1
  },
  "luminance": 0.0686
}

Semantic roles & 50–950 ramp

primary

#403CA0

secondary

#B9BB7C

accent

#D553D0

background

#F8F6FB

surface

#EFECF7

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403CA0

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

Preview Lab → · Contrast checker → · Palette generator →