#3F347F#3F347F

#3F347F is a dark, vivid blue. Relative luminance 0.050; OKLCH L 38.0% C 0.122 H 285.7°. Best body text is #FFFFFF at 10.45:1 contrast (WCAG AA passes).

Color values

HEX	#3F347F
RGB	rgb(63, 52, 127)
HSL	hsl(249, 42%, 35%)
HSV	hsv(249, 59%, 50%)
CMYK	cmyk(50.4%, 59.1%, 0%, 50.2%)
CIE-LAB	lab(26.86, 25.90, -41.05)
CIE-LCH	lch(26.86, 48.54, 302.25°)
OKLab	oklab(38.02% 0.0331 -0.1173)
OKLCH	oklch(38.02% 0.122 285.7)
XYZ	xyz(7.1075, 5.0447, 20.6738)
Luminance	0.0505 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F347F #747F34

analogous

#344F7F #3F347F #64347F

triadic

#3F347F #7F3F34 #347F3F

tetradic

#3F347F #7F344F #747F34 #347F64

square

#3F347F #7F344F #747F34 #347F64

split-complementary

#3F347F #7F6434 #4F7F34

monochromatic

#141028 #292254 #3F347F #5546AA #786BC2

Accessibility & contrast

On white

10.45

#3F347F on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.01

#3F347F on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #3F347F

10.45:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F347F	#FFFFFF	#000000	##FFFFFF
##3F347F	1.00	10.45	2.01	10.45
#FFFFFF	10.45	1.00	21.00	1.00
#000000	2.01	21.00	1.00	21.00
##FFFFFF	10.45	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#014282

Deuteranopia (green-blind)

#003D7D

Tritanopia (blue-blind)

#294554

Achromatopsia (no color)

#3F3F3F

Design tokens & code

CSS

--color: #3f347f;
/* rgb */ color: rgb(63, 52, 127);
/* oklch */ color: oklch(38.0% 0.122 285.7);

Tailwind

colors: {
  custom: {
    50: '#796ca5',
    500: '#3f347f',
    950: '#000000',
  },
}

SCSS

$custom: #3f347f;
$custom-light: #796ca5;
$custom-dark: #000000;

JSON

{
  "hex": "#3f347f",
  "rgb": {
    "r": 63,
    "g": 52,
    "b": 127
  },
  "hsl": {
    "h": 248.8,
    "s": 41.899,
    "l": 35.098
  },
  "oklch": {
    "l": 0.38018,
    "c": 0.12184,
    "h": 285.7
  },
  "luminance": 0.05045
}

Semantic roles & 50–950 ramp

primary

#3F347F

secondary

#A0AA64

accent

#D256C0

background

#F7F6FA

surface

#EEEBF4

border

#C9C6CE

text

#09070F

muted

#7B7A7F

Preview Lab

Preview with #3F347F

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

Preview Lab → · Contrast checker → · Palette generator →