#403AAC#403AAC

#403AAC is a dark, vivid blue. Relative luminance 0.071; OKLCH L 43.0% C 0.175 H 278.4°. Best body text is #FFFFFF at 8.68:1 contrast (WCAG AA passes).

Color values

HEX	#403AAC
RGB	rgb(64, 58, 172)
HSL	hsl(243, 50%, 45%)
HSV	hsv(243, 66%, 67%)
CMYK	cmyk(62.8%, 66.3%, 0%, 32.5%)
CIE-LAB	lab(32.02, 37.21, -60.22)
CIE-LCH	lch(32.02, 70.79, 301.71°)
OKLab	oklab(42.95% 0.0255 -0.1735)
OKLCH	oklch(42.95% 0.175 278.4)
XYZ	xyz(11.0714, 7.0938, 39.8075)
Luminance	0.0709 (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

#403AAC #A6AC3A

analogous

#3A6DAC #403AAC #793AAC

triadic

#403AAC #AC403A #3AAC40

tetradic

#403AAC #AC3A6D #A6AC3A #3AAC79

square

#403AAC #AC3A6D #A6AC3A #3AAC79

split-complementary

#403AAC #AC793A #6DAC3A

monochromatic

#1E1B50 #2F2B7E #403AAC #615BC8 #8D89D7

Accessibility & contrast

On white

8.68

#403AAC on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#403AAC on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AAC

8.68:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AAC	#FFFFFF	#000000	##FFFFFF
##403AAC	1.00	8.68	2.42	8.68
#FFFFFF	8.68	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.68	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050B0

Deuteranopia (green-blind)

#0047AA

Tritanopia (blue-blind)

#00576E

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403aac;
/* rgb */ color: rgb(64, 58, 172);
/* oklch */ color: oklch(43.0% 0.175 278.4);

Tailwind

colors: {
  custom: {
    50: '#8171c6',
    500: '#403aac',
    950: '#000000',
  },
}

SCSS

$custom: #403aac;
$custom-light: #8171c6;
$custom-dark: #000000;

JSON

{
  "hex": "#403aac",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 172
  },
  "hsl": {
    "h": 243.158,
    "s": 49.565,
    "l": 45.098
  },
  "oklch": {
    "l": 0.42951,
    "c": 0.17541,
    "h": 278.4
  },
  "luminance": 0.07095
}

Semantic roles & 50–950 ramp

primary

#403AAC

secondary

#BEC280

accent

#D94FD2

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0C0713

muted

#7D7A82

Preview Lab

Preview with #403AAC

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

Preview Lab → · Contrast checker → · Palette generator →