#3F649E#3F649E

#3F649E is a mid, moderate blue. Relative luminance 0.126; OKLCH L 50.3% C 0.102 H 259.1°. Best body text is #FFFFFF at 5.95:1 contrast (WCAG AA passes).

Color values

HEX	#3F649E
RGB	rgb(63, 100, 158)
HSL	hsl(217, 43%, 43%)
HSV	hsv(217, 60%, 62%)
CMYK	cmyk(60.1%, 36.7%, 0%, 38%)
CIE-LAB	lab(42.21, 5.21, -35.46)
CIE-LCH	lch(42.21, 35.84, 278.36°)
OKLab	oklab(50.33% -0.0194 -0.1004)
OKLCH	oklch(50.33% 0.102 259.1)
XYZ	xyz(12.7765, 12.6386, 34.1073)
Luminance	0.1264 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F649E #9E793F

analogous

#3F939E #3F649E #4A3F9E

triadic

#3F649E #9E3F64 #649E3F

tetradic

#3F649E #9E3F93 #9E793F #3F9E4A

square

#3F649E #9E3F93 #9E793F #3F9E4A

split-complementary

#3F649E #9E4A3F #939E3F

monochromatic

#1C2D46 #2E4872 #3F649E #5C82BE #88A4D0

Accessibility & contrast

On white

5.95

#3F649E on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.53

#3F649E on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F649E

5.95:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F649E	#FFFFFF	#000000	##FFFFFF
##3F649E	1.00	5.95	3.53	5.95
#FFFFFF	5.95	1.00	21.00	1.00
#000000	3.53	21.00	1.00	21.00
##FFFFFF	5.95	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4C68A0

Deuteranopia (green-blind)

#3F609D

Tritanopia (blue-blind)

#007179

Achromatopsia (no color)

#646464

Design tokens & code

CSS

--color: #3f649e;
/* rgb */ color: rgb(63, 100, 158);
/* oklch */ color: oklch(50.3% 0.102 259.1);

Tailwind

colors: {
  custom: {
    50: '#7c8fbb',
    500: '#3f649e',
    950: '#000000',
  },
}

SCSS

$custom: #3f649e;
$custom-light: #7c8fbb;
$custom-dark: #000000;

JSON

{
  "hex": "#3f649e",
  "rgb": {
    "r": 63,
    "g": 100,
    "b": 158
  },
  "hsl": {
    "h": 216.632,
    "s": 42.986,
    "l": 43.333
  },
  "oklch": {
    "l": 0.50326,
    "c": 0.10229,
    "h": 259.1
  },
  "luminance": 0.1264
}

Semantic roles & 50–950 ramp

primary

#3F649E

secondary

#BAA37F

accent

#A255D3

background

#F7F8FB

surface

#EEF0F6

border

#C9CBD0

text

#0A0C12

muted

#7C7D81

Preview Lab

Preview with #3F649E

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

Preview Lab → · Contrast checker → · Palette generator →