#403F5F#403F5F

#403F5F is a dark, muted blue. Relative luminance 0.055; OKLCH L 38.3% C 0.054 H 285.0°. Best body text is #FFFFFF at 10.03:1 contrast (WCAG AA passes).

Color values

HEX	#403F5F
RGB	rgb(64, 63, 95)
HSL	hsl(242, 20%, 31%)
HSV	hsv(242, 34%, 37%)
CMYK	cmyk(32.6%, 33.7%, 0%, 62.7%)
CIE-LAB	lab(28.04, 8.79, -18.79)
CIE-LCH	lch(28.04, 20.75, 295.08°)
OKLab	oklab(38.3% 0.014 -0.0522)
OKLCH	oklch(38.3% 0.054 285)
XYZ	xyz(5.9569, 5.4711, 11.5664)
Luminance	0.0547 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F5F #5E5F3F

analogous

#3F4E5F #403F5F #503F5F

triadic

#403F5F #5F403F #3F5F40

tetradic

#403F5F #5F3F4E #5E5F3F #3F5F50

square

#403F5F #5F3F4E #5E5F3F #3F5F50

split-complementary

#403F5F #5F503F #4E5F3F

monochromatic

#0E0E15 #27273A #403F5F #595784 #7675A3

Accessibility & contrast

On white

10.03

#403F5F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.09

#403F5F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F5F

10.03:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F5F	#FFFFFF	#000000	##FFFFFF
##403F5F	1.00	10.03	2.09	10.03
#FFFFFF	10.03	1.00	21.00	1.00
#000000	2.09	21.00	1.00	21.00
##FFFFFF	10.03	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#364360

Deuteranopia (green-blind)

#35415E

Tritanopia (blue-blind)

#38454A

Achromatopsia (no color)

#424242

Design tokens & code

CSS

--color: #403f5f;
/* rgb */ color: rgb(64, 63, 95);
/* oklch */ color: oklch(38.3% 0.054 285.0);

Tailwind

colors: {
  custom: {
    50: '#76748c',
    500: '#403f5f',
    950: '#000000',
  },
}

SCSS

$custom: #403f5f;
$custom-light: #76748c;
$custom-dark: #000000;

JSON

{
  "hex": "#403f5f",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 95
  },
  "hsl": {
    "h": 241.875,
    "s": 20.253,
    "l": 30.98
  },
  "oklch": {
    "l": 0.38297,
    "c": 0.05407,
    "h": 285
  },
  "luminance": 0.05471
}

Semantic roles & 50–950 ramp

primary

#403F5F

secondary

#8D8F6B

accent

#BD6BBA

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #403F5F

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

Preview Lab → · Contrast checker → · Palette generator →