#403CAA#403CAA

#403CAA is a dark, vivid blue. Relative luminance 0.072; OKLCH L 43.1% C 0.170 H 278.1°. Best body text is #FFFFFF at 8.59:1 contrast (WCAG AA passes).

Color values

HEX	#403CAA
RGB	rgb(64, 60, 170)
HSL	hsl(242, 48%, 45%)
HSV	hsv(242, 65%, 67%)
CMYK	cmyk(62.4%, 64.7%, 0%, 33.3%)
CIE-LAB	lab(32.31, 35.31, -58.55)
CIE-LCH	lch(32.31, 68.37, 301.09°)
OKLab	oklab(43.11% 0.024 -0.1686)
OKLCH	oklch(43.11% 0.17 278.1)
XYZ	xyz(10.9836, 7.2231, 38.8378)
Luminance	0.0722 (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

#403CAA #A6AA3C

analogous

#3C6FAA #403CAA #773CAA

triadic

#403CAA #AA403C #3CAA40

tetradic

#403CAA #AA3C6F #A6AA3C #3CAA77

square

#403CAA #AA3C6F #A6AA3C #3CAA77

split-complementary

#403CAA #AA773C #6FAA3C

monochromatic

#1E1C50 #2F2C7D #403CAA #615DC6 #8D8BD6

Accessibility & contrast

On white

8.59

#403CAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.44

#403CAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CAA

8.59:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CAA	#FFFFFF	#000000	##FFFFFF
##403CAA	1.00	8.59	2.44	8.59
#FFFFFF	8.59	1.00	21.00	1.00
#000000	2.44	21.00	1.00	21.00
##FFFFFF	8.59	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0051AD

Deuteranopia (green-blind)

#0047A8

Tritanopia (blue-blind)

#00586D

Achromatopsia (no color)

#4C4C4C

Design tokens & code

CSS

--color: #403caa;
/* rgb */ color: rgb(64, 60, 170);
/* oklch */ color: oklch(43.1% 0.170 278.1);

Tailwind

colors: {
  custom: {
    50: '#8172c4',
    500: '#403caa',
    950: '#000000',
  },
}

SCSS

$custom: #403caa;
$custom-light: #8172c4;
$custom-dark: #000000;

JSON

{
  "hex": "#403caa",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 170
  },
  "hsl": {
    "h": 242.182,
    "s": 47.826,
    "l": 45.098
  },
  "oklch": {
    "l": 0.43109,
    "c": 0.17033,
    "h": 278.1
  },
  "luminance": 0.07224
}

Semantic roles & 50–950 ramp

primary

#403CAA

secondary

#BEC081

accent

#D750D3

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0813

muted

#7C7B82

Preview Lab

Preview with #403CAA

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

Preview Lab → · Contrast checker → · Palette generator →