#403F64#403F64

#403F64 is a dark, moderate blue. Relative luminance 0.056; OKLCH L 38.6% C 0.062 H 284.3°. Best body text is #FFFFFF at 9.94:1 contrast (WCAG AA passes).

Color values

HEX	#403F64
RGB	rgb(64, 63, 100)
HSL	hsl(242, 23%, 32%)
HSV	hsv(242, 37%, 39%)
CMYK	cmyk(36%, 37%, 0%, 60.8%)
CIE-LAB	lab(28.29, 10.29, -21.62)
CIE-LCH	lch(28.29, 23.95, 295.45°)
OKLab	oklab(38.57% 0.0154 -0.0604)
OKLCH	oklch(38.57% 0.062 284.3)
XYZ	xyz(6.1915, 5.5649, 12.8020)
Luminance	0.0556 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#403F64 #63643F

analogous

#3F5164 #403F64 #533F64

triadic

#403F64 #64403F #3F6440

tetradic

#403F64 #643F51 #63643F #3F6453

square

#403F64 #643F51 #63643F #3F6453

split-complementary

#403F64 #64533F #51643F

monochromatic

#101019 #28273E #403F64 #58578A #7775A8

Accessibility & contrast

On white

9.94

#403F64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.11

#403F64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #403F64

9.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##403F64	#FFFFFF	#000000	##FFFFFF
##403F64	1.00	9.94	2.11	9.94
#FFFFFF	9.94	1.00	21.00	1.00
#000000	2.11	21.00	1.00	21.00
##FFFFFF	9.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#344465

Deuteranopia (green-blind)

#334263

Tritanopia (blue-blind)

#37464D

Achromatopsia (no color)

#434343

Design tokens & code

CSS

--color: #403f64;
/* rgb */ color: rgb(64, 63, 100);
/* oklch */ color: oklch(38.6% 0.062 284.3);

Tailwind

colors: {
  custom: {
    50: '#767490',
    500: '#403f64',
    950: '#000000',
  },
}

SCSS

$custom: #403f64;
$custom-light: #767490;
$custom-dark: #000000;

JSON

{
  "hex": "#403f64",
  "rgb": {
    "r": 64,
    "g": 63,
    "b": 100
  },
  "hsl": {
    "h": 241.622,
    "s": 22.699,
    "l": 31.961
  },
  "oklch": {
    "l": 0.38571,
    "c": 0.06232,
    "h": 284.3
  },
  "luminance": 0.05565
}

Semantic roles & 50–950 ramp

primary

#403F64

secondary

#93946B

accent

#BF69BD

background

#F7F7F8

surface

#EDEDF0

border

#C8C8CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #403F64

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

Preview Lab → · Contrast checker → · Palette generator →