#3F649D#3F649D

#3F649D is a mid, moderate blue. Relative luminance 0.126; OKLCH L 50.3% C 0.101 H 258.8°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F649D
RGB	rgb(63, 100, 157)
HSL	hsl(216, 43%, 43%)
HSV	hsv(216, 60%, 62%)
CMYK	cmyk(59.9%, 36.3%, 0%, 38.4%)
CIE-LAB	lab(42.16, 4.86, -34.95)
CIE-LCH	lch(42.16, 35.29, 277.92°)
OKLab	oklab(50.27% -0.0197 -0.0989)
OKLCH	oklch(50.27% 0.101 258.8)
XYZ	xyz(12.6907, 12.6043, 33.6559)
Luminance	0.1260 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F649D #9D783F

analogous

#3F939D #3F649D #493F9D

triadic

#3F649D #9D3F64 #649D3F

tetradic

#3F649D #9D3F93 #9D783F #3F9D49

square

#3F649D #9D3F93 #9D783F #3F9D49

split-complementary

#3F649D #9D493F #939D3F

monochromatic

#1C2C46 #2D4871 #3F649D #5C82BD #87A4CF

Accessibility & contrast

On white

5.96

#3F649D on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3F649D on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F649D

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F649D	#FFFFFF	#000000	##FFFFFF
##3F649D	1.00	5.96	3.52	5.96
#FFFFFF	5.96	1.00	21.00	1.00
#000000	3.52	21.00	1.00	21.00
##FFFFFF	5.96	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C689F

Deuteranopia (green-blind)

#405F9C

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f649d;
/* rgb */ color: rgb(63, 100, 157);
/* oklch */ color: oklch(50.3% 0.101 258.8);

Tailwind

colors: {
  custom: {
    50: '#7c8fba',
    500: '#3f649d',
    950: '#000000',
  },
}

SCSS

$custom: #3f649d;
$custom-light: #7c8fba;
$custom-dark: #000000;

JSON

{
  "hex": "#3f649d",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 157
  },
  "hsl": {
    "h": 216.383,
    "s": 42.727,
    "l": 43.137
  },
  "oklch": {
    "l": 0.50268,
    "c": 0.10087,
    "h": 258.8
  },
  "luminance": 0.12605
}

Semantic roles & 50–950 ramp

primary

#3F649D

secondary

#BAA27E

accent

#A155D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C11

muted

#7C7D80

Preview Lab

Preview with #3F649D

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

Preview Lab → · Contrast checker → · Palette generator →