#3F3D64#3F3D64

#3F3D64 is a dark, moderate blue. Relative luminance 0.053; OKLCH L 38.0% C 0.066 H 285.2°. Best body text is #FFFFFF at 10.18:1 contrast (WCAG AA passes).

Color values

HEX	#3F3D64
RGB	rgb(63, 61, 100)
HSL	hsl(243, 24%, 32%)
HSV	hsv(243, 39%, 39%)
CMYK	cmyk(37%, 39%, 0%, 60.8%)
CIE-LAB	lab(27.61, 11.31, -22.69)
CIE-LCH	lch(27.61, 25.35, 296.49°)
OKLab	oklab(38.03% 0.0172 -0.0635)
OKLCH	oklch(38.03% 0.066 285.2)
XYZ	xyz(6.0183, 5.3142, 12.7628)
Luminance	0.0531 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F3D64 #62643D

analogous

#3D4F64 #3F3D64 #533D64

triadic

#3F3D64 #643F3D #3D643F

tetradic

#3F3D64 #643D4F #62643D #3D6453

square

#3F3D64 #643D4F #62643D #3D6453

split-complementary

#3F3D64 #64533D #4F643D

monochromatic

#0F0F18 #27263E #3F3D64 #57548A #7572A9

Accessibility & contrast

On white

10.18

#3F3D64 on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.06

#3F3D64 on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F3D64

10.18:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F3D64	#FFFFFF	#000000	##FFFFFF
##3F3D64	1.00	10.18	2.06	10.18
#FFFFFF	10.18	1.00	21.00	1.00
#000000	2.06	21.00	1.00	21.00
##FFFFFF	10.18	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#314266

Deuteranopia (green-blind)

#304063

Tritanopia (blue-blind)

#35444B

Achromatopsia (no color)

#414141

Design tokens & code

CSS

--color: #3f3d64;
/* rgb */ color: rgb(63, 61, 100);
/* oklch */ color: oklch(38.0% 0.066 285.2);

Tailwind

colors: {
  custom: {
    50: '#757290',
    500: '#3f3d64',
    950: '#000000',
  },
}

SCSS

$custom: #3f3d64;
$custom-light: #757290;
$custom-dark: #000000;

JSON

{
  "hex": "#3f3d64",
  "rgb": {
    "r": 63,
    "g": 61,
    "b": 100
  },
  "hsl": {
    "h": 243.077,
    "s": 24.224,
    "l": 31.569
  },
  "oklch": {
    "l": 0.38031,
    "c": 0.06577,
    "h": 285.2
  },
  "luminance": 0.05314
}

Semantic roles & 50–950 ramp

primary

#3F3D64

secondary

#929469

accent

#C167BC

background

#F7F6F8

surface

#EDECF0

border

#C8C7CB

text

#08080C

muted

#7B7B7D

Preview Lab

Preview with #3F3D64

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

Preview Lab → · Contrast checker → · Palette generator →