#3F366F#3F366F

#3F366F is a dark, moderate blue. Relative luminance 0.048; OKLCH L 37.2% C 0.095 H 288.1°. Best body text is #FFFFFF at 10.67:1 contrast (WCAG AA passes).

Color values

HEX	#3F366F
RGB	rgb(63, 54, 111)
HSL	hsl(249, 35%, 32%)
HSV	hsv(249, 51%, 44%)
CMYK	cmyk(43.2%, 51.4%, 0%, 56.5%)
CIE-LAB	lab(26.28, 19.43, -31.85)
CIE-LCH	lch(26.28, 37.31, 301.39°)
OKLab	oklab(37.23% 0.0296 -0.0902)
OKLCH	oklch(37.23% 0.095 288.1)
XYZ	xyz(6.2375, 4.8426, 15.6419)
Luminance	0.0484 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F366F #666F36

analogous

#36496F #3F366F #5C366F

triadic

#3F366F #6F3F36 #366F3F

tetradic

#3F366F #6F3649 #666F36 #366F5C

square

#3F366F #6F3649 #666F36 #366F5C

split-complementary

#3F366F #6F5C36 #496F36

monochromatic

#100E1D #282246 #3F366F #564A98 #7569B6

Accessibility & contrast

On white

10.67

#3F366F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.97

#3F366F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F366F

10.67:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F366F	#FFFFFF	#000000	##FFFFFF
##3F366F	1.00	10.67	1.97	10.67
#FFFFFF	10.67	1.00	21.00	1.00
#000000	1.97	21.00	1.00	21.00
##FFFFFF	10.67	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#1F3F71

Deuteranopia (green-blind)

#1F3D6E

Tritanopia (blue-blind)

#31424D

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3f366f;
/* rgb */ color: rgb(63, 54, 111);
/* oklch */ color: oklch(37.2% 0.095 288.1);

Tailwind

colors: {
  custom: {
    50: '#776d99',
    500: '#3f366f',
    950: '#000000',
  },
}

SCSS

$custom: #3f366f;
$custom-light: #776d99;
$custom-dark: #000000;

JSON

{
  "hex": "#3f366f",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 111
  },
  "hsl": {
    "h": 249.474,
    "s": 34.545,
    "l": 32.353
  },
  "oklch": {
    "l": 0.37232,
    "c": 0.09494,
    "h": 288.1
  },
  "luminance": 0.04843
}

Semantic roles & 50–950 ramp

primary

#3F366F

secondary

#959F62

accent

#CB5DB9

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#09070E

muted

#7B7A7E

Preview Lab

Preview with #3F366F

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

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