#3F366E#3F366E

#3F366E is a dark, moderate blue. Relative luminance 0.048; OKLCH L 37.2% C 0.093 H 288.4°. Best body text is #FFFFFF at 10.69:1 contrast (WCAG AA passes).

Color values

HEX	#3F366E
RGB	rgb(63, 54, 110)
HSL	hsl(250, 34%, 32%)
HSV	hsv(250, 51%, 43%)
CMYK	cmyk(42.7%, 50.9%, 0%, 56.9%)
CIE-LAB	lab(26.22, 19.11, -31.31)
CIE-LCH	lch(26.22, 36.68, 301.40°)
OKLab	oklab(37.16% 0.0295 -0.0886)
OKLCH	oklch(37.16% 0.093 288.4)
XYZ	xyz(6.1828, 4.8207, 15.3536)
Luminance	0.0482 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F366E #656E36

analogous

#36496E #3F366E #5B366E

triadic

#3F366E #6E3F36 #366E3F

tetradic

#3F366E #6E3649 #656E36 #366E5B

square

#3F366E #6E3649 #656E36 #366E5B

split-complementary

#3F366E #6E5B36 #496E36

monochromatic

#100E1C #272245 #3F366E #574A97 #7569B5

Accessibility & contrast

On white

10.69

#3F366E on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3F366E on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F366E

10.69:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F366E	#FFFFFF	#000000	##FFFFFF
##3F366E	1.00	10.69	1.96	10.69
#FFFFFF	10.69	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.69	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#203F70

Deuteranopia (green-blind)

#203D6D

Tritanopia (blue-blind)

#32414C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3f366e;
/* rgb */ color: rgb(63, 54, 110);
/* oklch */ color: oklch(37.2% 0.093 288.4);

Tailwind

colors: {
  custom: {
    50: '#776d98',
    500: '#3f366e',
    950: '#000000',
  },
}

SCSS

$custom: #3f366e;
$custom-light: #776d98;
$custom-dark: #000000;

JSON

{
  "hex": "#3f366e",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 110
  },
  "hsl": {
    "h": 249.643,
    "s": 34.146,
    "l": 32.157
  },
  "oklch": {
    "l": 0.37163,
    "c": 0.0934,
    "h": 288.4
  },
  "luminance": 0.04821
}

Semantic roles & 50–950 ramp

primary

#3F366E

secondary

#959E62

accent

#CA5EB9

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#09070D

muted

#7B7A7E

Preview Lab

Preview with #3F366E

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

Preview Lab → · Contrast checker → · Palette generator →