#403CA7#403CA7

#403CA7 is a dark, vivid blue. Relative luminance 0.071; OKLCH L 42.8% C 0.166 H 278.4°. Best body text is #FFFFFF at 8.67:1 contrast (WCAG AA passes).

Color values

HEX	#403CA7
RGB	rgb(64, 60, 167)
HSL	hsl(242, 47%, 45%)
HSV	hsv(242, 64%, 65%)
CMYK	cmyk(61.7%, 64.1%, 0%, 34.5%)
CIE-LAB	lab(32.06, 34.30, -57.16)
CIE-LCH	lch(32.06, 66.66, 300.97°)
OKLab	oklab(42.85% 0.0243 -0.1645)
OKLCH	oklch(42.85% 0.166 278.4)
XYZ	xyz(10.7030, 7.1109, 37.3603)
Luminance	0.0711 (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

#403CA7 #A3A73C

analogous

#3C6EA7 #403CA7 #763CA7

triadic

#403CA7 #A7403C #3CA740

tetradic

#403CA7 #A73C6E #A3A73C #3CA776

square

#403CA7 #A73C6E #A3A73C #3CA776

split-complementary

#403CA7 #A7763C #6EA73C

monochromatic

#1D1C4D #2F2C7A #403CA7 #605CC4 #8C89D5

Accessibility & contrast

On white

8.67

#403CA7 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.42

#403CA7 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403CA7

8.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403CA7	#FFFFFF	#000000	##FFFFFF
##403CA7	1.00	8.67	2.42	8.67
#FFFFFF	8.67	1.00	21.00	1.00
#000000	2.42	21.00	1.00	21.00
##FFFFFF	8.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0050AA

Deuteranopia (green-blind)

#0047A5

Tritanopia (blue-blind)

#00576C

Achromatopsia (no color)

#4B4B4B

Design tokens & code

CSS

--color: #403ca7;
/* rgb */ color: rgb(64, 60, 167);
/* oklch */ color: oklch(42.8% 0.166 278.4);

Tailwind

colors: {
  custom: {
    50: '#8072c2',
    500: '#403ca7',
    950: '#000000',
  },
}

SCSS

$custom: #403ca7;
$custom-light: #8072c2;
$custom-dark: #000000;

JSON

{
  "hex": "#403ca7",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 167
  },
  "hsl": {
    "h": 242.243,
    "s": 47.137,
    "l": 44.51
  },
  "oklch": {
    "l": 0.42848,
    "c": 0.16633,
    "h": 278.4
  },
  "luminance": 0.07112
}

Semantic roles & 50–950 ramp

primary

#403CA7

secondary

#BDBF80

accent

#D751D2

background

#F8F6FC

surface

#EFECF8

border

#CAC7D1

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403CA7

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

Preview Lab → · Contrast checker → · Palette generator →