#403FA0#403FA0

#403FA0 is a dark, vivid blue. Relative luminance 0.072; OKLCH L 42.8% C 0.153 H 278.2°. Best body text is #FFFFFF at 8.62:1 contrast (WCAG AA passes).

Color values

HEX	#403FA0
RGB	rgb(64, 63, 160)
HSL	hsl(241, 43%, 44%)
HSV	hsv(241, 61%, 63%)
CMYK	cmyk(60%, 60.6%, 0%, 37.3%)
CIE-LAB	lab(32.22, 30.04, -52.68)
CIE-LCH	lch(32.22, 60.64, 299.69°)
OKLab	oklab(42.79% 0.0219 -0.1514)
OKLCH	oklch(42.79% 0.153 278.2)
XYZ	xyz(10.2350, 7.1823, 34.0979)
Luminance	0.0718 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.42

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403FA0 #9FA03F

analogous

#3F6EA0 #403FA0 #703FA0

triadic

#403FA0 #A0403F #3FA040

tetradic

#403FA0 #A03F6E #9FA03F #3FA070

square

#403FA0 #A03F6E #9FA03F #3FA070

split-complementary

#403FA0 #A0703F #6EA03F

monochromatic

#1D1C48 #2E2E74 #403FA0 #5E5DBF #8A89D0

Accessibility & contrast

On white

8.62

#403FA0 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#403FA0 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403FA0

8.62:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403FA0	#FFFFFF	#000000	##FFFFFF
##403FA0	1.00	8.62	2.44	8.62
#FFFFFF	8.62	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.62	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050A3

Deuteranopia (green-blind)

#00489E

Tritanopia (blue-blind)

#005669

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403fa0;
/* rgb */ color: rgb(64, 63, 160);
/* oklch */ color: oklch(42.8% 0.153 278.2);

Tailwind

colors: {
  custom: {
    50: '#7f74bd',
    500: '#403fa0',
    950: '#000000',
  },
}

SCSS

$custom: #403fa0;
$custom-light: #7f74bd;
$custom-dark: #000000;

JSON

{
  "hex": "#403fa0",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 160
  },
  "hsl": {
    "h": 240.619,
    "s": 43.498,
    "l": 43.725
  },
  "oklch": {
    "l": 0.42789,
    "c": 0.15295,
    "h": 278.2
  },
  "luminance": 0.07183
}

Semantic roles & 50–950 ramp

primary

#403FA0

secondary

#BBBB80

accent

#D355D2

background

#F8F7FB

surface

#EFEDF7

border

#CAC8D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403FA0

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

Preview Lab → · Contrast checker → · Palette generator →