#3F6EBA#3F6EBA

#3F6EBA is a mid, vivid blue. Relative luminance 0.158; OKLCH L 54.3% C 0.130 H 259.6°. Best body text is #FFFFFF at 5.06:1 contrast (WCAG AA passes).

Color values

HEX	#3F6EBA
RGB	rgb(63, 110, 186)
HSL	hsl(217, 49%, 49%)
HSV	hsv(217, 66%, 73%)
CMYK	cmyk(66.1%, 40.9%, 0%, 27.1%)
CIE-LAB	lab(46.65, 8.81, -44.85)
CIE-LCH	lch(46.65, 45.71, 281.11°)
OKLab	oklab(54.27% -0.0235 -0.1278)
OKLCH	oklch(54.27% 0.13 259.6)
XYZ	xyz(16.4856, 15.7522, 48.6165)
Luminance	0.1575 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6EBA #BA8B3F

analogous

#3FACBA #3F6EBA #4E3FBA

triadic

#3F6EBA #BA3F6E #6EBA3F

tetradic

#3F6EBA #BA3FAC #BA8B3F #3FBA4E

square

#3F6EBA #BA3FAC #BA8B3F #3FBA4E

split-complementary

#3F6EBA #BA4E3F #ACBA3F

monochromatic

#20385F #30538C #3F6EBA #6A8FCC #97B2DC

Accessibility & contrast

On white

5.06

#3F6EBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.15

#3F6EBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6EBA

5.06:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6EBA	#FFFFFF	#000000	##FFFFFF
##3F6EBA	1.00	5.06	4.15	5.06
#FFFFFF	5.06	1.00	21.00	1.00
#000000	4.15	21.00	1.00	21.00
##FFFFFF	5.06	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4B75BD

Deuteranopia (green-blind)

#3969B8

Tritanopia (blue-blind)

#007F8B

Achromatopsia (no color)

#6F6F6F

Design tokens & code

CSS

--color: #3f6eba;
/* rgb */ color: rgb(63, 110, 186);
/* oklch */ color: oklch(54.3% 0.130 259.6);

Tailwind

colors: {
  custom: {
    50: '#8197cf',
    500: '#3f6eba',
    950: '#000000',
  },
}

SCSS

$custom: #3f6eba;
$custom-light: #8197cf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6eba",
  "rgb": {
    "r": 63,
    "g": 110,
    "b": 186
  },
  "hsl": {
    "h": 217.073,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.54268,
    "c": 0.12994,
    "h": 259.6
  },
  "luminance": 0.15754
}

Semantic roles & 50–950 ramp

primary

#3F6EBA

secondary

#C8B18D

accent

#A44FD9

background

#F8F9FC

surface

#EFF2F9

border

#CACCD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3F6EBA

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

Preview Lab → · Contrast checker → · Palette generator →