#403C9F#403C9F

#403C9F is a dark, vivid blue. Relative luminance 0.068; OKLCH L 42.2% C 0.156 H 279.2°. Best body text is #FFFFFF at 8.88:1 contrast (WCAG AA passes).

Color values

HEX	#403C9F
RGB	rgb(64, 60, 159)
HSL	hsl(242, 45%, 43%)
HSV	hsv(242, 62%, 62%)
CMYK	cmyk(59.7%, 62.3%, 0%, 37.6%)
CIE-LAB	lab(31.40, 31.61, -53.40)
CIE-LCH	lch(31.40, 62.06, 300.62°)
OKLab	oklab(42.16% 0.0248 -0.1535)
OKLCH	oklch(42.16% 0.156 279.2)
XYZ	xyz(9.9862, 6.8242, 33.5851)
Luminance	0.0683 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

#533CC6

ΔE00 6.36

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403C9F #9B9F3C

analogous

#3C6A9F #403C9F #713C9F

triadic

#403C9F #9F403C #3C9F40

tetradic

#403C9F #9F3C6A #9B9F3C #3C9F71

square

#403C9F #9F3C6A #9B9F3C #3C9F71

split-complementary

#403C9F #9F713C #6A9F3C

monochromatic

#1C1A46 #2E2B73 #403C9F #5C58C0 #8885D1

Accessibility & contrast

On white

8.88

#403C9F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.37

#403C9F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403C9F

8.88:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403C9F	#FFFFFF	#000000	##FFFFFF
##403C9F	1.00	8.88	2.37	8.88
#FFFFFF	8.88	1.00	21.00	1.00
#000000	2.37	21.00	1.00	21.00
##FFFFFF	8.88	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#004EA2

Deuteranopia (green-blind)

#00469D

Tritanopia (blue-blind)

#005467

Achromatopsia (no color)

#4A4A4A

Design tokens & code

CSS

--color: #403c9f;
/* rgb */ color: rgb(64, 60, 159);
/* oklch */ color: oklch(42.2% 0.156 279.2);

Tailwind

colors: {
  custom: {
    50: '#7f72bc',
    500: '#403c9f',
    950: '#000000',
  },
}

SCSS

$custom: #403c9f;
$custom-light: #7f72bc;
$custom-dark: #000000;

JSON

{
  "hex": "#403c9f",
  "rgb": {
    "r": 64,
    "g": 60,
    "b": 159
  },
  "hsl": {
    "h": 242.424,
    "s": 45.205,
    "l": 42.941
  },
  "oklch": {
    "l": 0.42164,
    "c": 0.15551,
    "h": 279.2
  },
  "luminance": 0.06825
}

Semantic roles & 50–950 ramp

primary

#403C9F

secondary

#B8BB7C

accent

#D553D0

background

#F8F6FB

surface

#EFECF6

border

#CAC7D0

text

#0B0812

muted

#7C7B81

Preview Lab

Preview with #403C9F

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

Preview Lab → · Contrast checker → · Palette generator →