#3F366D#3F366D

#3F366D is a dark, moderate blue. Relative luminance 0.048; OKLCH L 37.1% C 0.092 H 288.6°. Best body text is #FFFFFF at 10.72:1 contrast (WCAG AA passes).

Color values

HEX	#3F366D
RGB	rgb(63, 54, 109)
HSL	hsl(250, 34%, 32%)
HSV	hsv(250, 50%, 43%)
CMYK	cmyk(42.2%, 50.5%, 0%, 57.3%)
CIE-LAB	lab(26.15, 18.80, -30.77)
CIE-LCH	lch(26.15, 36.06, 301.42°)
OKLab	oklab(37.1% 0.0293 -0.0871)
OKLCH	oklch(37.1% 0.092 288.6)
XYZ	xyz(6.1286, 4.7990, 15.0684)
Luminance	0.0480 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F366D #646D36

analogous

#36496D #3F366D #5B366D

triadic

#3F366D #6D3F36 #366D3F

tetradic

#3F366D #6D3649 #646D36 #366D5B

square

#3F366D #6D3649 #646D36 #366D5B

split-complementary

#3F366D #6D5B36 #496D36

monochromatic

#100D1B #272244 #3F366D #574A96 #7569B5

Accessibility & contrast

On white

10.72

#3F366D on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

1.96

#3F366D on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F366D

10.72:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F366D	#FFFFFF	#000000	##FFFFFF
##3F366D	1.00	10.72	1.96	10.72
#FFFFFF	10.72	1.00	21.00	1.00
#000000	1.96	21.00	1.00	21.00
##FFFFFF	10.72	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#213F6F

Deuteranopia (green-blind)

#213D6C

Tritanopia (blue-blind)

#32414C

Achromatopsia (no color)

#3E3E3E

Design tokens & code

CSS

--color: #3f366d;
/* rgb */ color: rgb(63, 54, 109);
/* oklch */ color: oklch(37.1% 0.092 288.6);

Tailwind

colors: {
  custom: {
    50: '#776d97',
    500: '#3f366d',
    950: '#000000',
  },
}

SCSS

$custom: #3f366d;
$custom-light: #776d97;
$custom-dark: #000000;

JSON

{
  "hex": "#3f366d",
  "rgb": {
    "r": 63,
    "g": 54,
    "b": 109
  },
  "hsl": {
    "h": 249.818,
    "s": 33.742,
    "l": 31.961
  },
  "oklch": {
    "l": 0.37095,
    "c": 0.09187,
    "h": 288.6
  },
  "luminance": 0.04799
}

Semantic roles & 50–950 ramp

primary

#3F366D

secondary

#949D61

accent

#CA5EB8

background

#F7F6F9

surface

#EDEBF2

border

#C8C6CC

text

#09070D

muted

#7B7A7E

Preview Lab

Preview with #3F366D

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

Preview Lab → · Contrast checker → · Palette generator →