#403AAA#403AAA

#403AAA is a dark, vivid blue. Relative luminance 0.070; OKLCH L 42.8% C 0.173 H 278.6°. Best body text is #FFFFFF at 8.74:1 contrast (WCAG AA passes).

Color values

HEX	#403AAA
RGB	rgb(64, 58, 170)
HSL	hsl(243, 49%, 45%)
HSV	hsv(243, 66%, 67%)
CMYK	cmyk(62.4%, 65.9%, 0%, 33.3%)
CIE-LAB	lab(31.85, 36.54, -59.30)
CIE-LCH	lch(31.85, 69.66, 301.64°)
OKLab	oklab(42.77% 0.0257 -0.1708)
OKLCH	oklch(42.77% 0.173 278.6)
XYZ	xyz(10.8808, 7.0175, 38.8036)
Luminance	0.0702 (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

#403AAA #A4AA3A

analogous

#3A6CAA #403AAA #783AAA

triadic

#403AAA #AA403A #3AAA40

tetradic

#403AAA #AA3A6C #A4AA3A #3AAA78

square

#403AAA #AA3A6C #A4AA3A #3AAA78

split-complementary

#403AAA #AA783A #6CAA3A

monochromatic

#1E1B4F #2F2A7C #403AAA #605AC7 #8C88D6

Accessibility & contrast

On white

8.74

#403AAA on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.40

#403AAA on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403AAA

8.74:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403AAA	#FFFFFF	#000000	##FFFFFF
##403AAA	1.00	8.74	2.40	8.74
#FFFFFF	8.74	1.00	21.00	1.00
#000000	2.40	21.00	1.00	21.00
##FFFFFF	8.74	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004FAE

Deuteranopia (green-blind)

#0046A8

Tritanopia (blue-blind)

#00576D

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403aaa;
/* rgb */ color: rgb(64, 58, 170);
/* oklch */ color: oklch(42.8% 0.173 278.6);

Tailwind

colors: {
  custom: {
    50: '#8171c4',
    500: '#403aaa',
    950: '#000000',
  },
}

SCSS

$custom: #403aaa;
$custom-light: #8171c4;
$custom-dark: #000000;

JSON

{
  "hex": "#403aaa",
  "rgb": {
    "r": 64,
    "g": 58,
    "b": 170
  },
  "hsl": {
    "h": 243.214,
    "s": 49.123,
    "l": 44.706
  },
  "oklch": {
    "l": 0.42773,
    "c": 0.17278,
    "h": 278.6
  },
  "luminance": 0.07018
}

Semantic roles & 50–950 ramp

primary

#403AAA

secondary

#BDC17F

accent

#D94FD1

background

#F8F6FC

surface

#F0ECF8

border

#CBC7D1

text

#0B0713

muted

#7C7A82

Preview Lab

Preview with #403AAA

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

Preview Lab → · Contrast checker → · Palette generator →