#3F5EBA#3F5EBA

#3F5EBA is a mid, vivid blue. Relative luminance 0.126; OKLCH L 50.8% C 0.149 H 267.0°. Best body text is #FFFFFF at 5.96:1 contrast (WCAG AA passes).

Color values

HEX	#3F5EBA
RGB	rgb(63, 94, 186)
HSL	hsl(225, 49%, 49%)
HSV	hsv(225, 66%, 73%)
CMYK	cmyk(66.1%, 49.5%, 0%, 27.1%)
CIE-LAB	lab(42.16, 18.97, -52.03)
CIE-LCH	lch(42.16, 55.38, 290.03°)
OKLab	oklab(50.82% -0.0078 -0.1491)
OKLCH	oklch(50.82% 0.149 267)
XYZ	xyz(14.9125, 12.6059, 48.0922)
Luminance	0.1261 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F5EBA #BA9B3F

analogous

#3F9CBA #3F5EBA #5E3FBA

triadic

#3F5EBA #BA3F5E #5EBA3F

tetradic

#3F5EBA #BA3F9C #BA9B3F #3FBA5E

square

#3F5EBA #BA3F9C #BA9B3F #3FBA5E

split-complementary

#3F5EBA #BA5E3F #9CBA3F

monochromatic

#20305F #30478C #3F5EBA #6A83CC #97A9DC

Accessibility & contrast

On white

5.96

#3F5EBA on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

3.52

#3F5EBA on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F5EBA

5.96:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F5EBA	#FFFFFF	#000000	##FFFFFF
##3F5EBA	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)

#2C69BD

Deuteranopia (green-blind)

#095EB8

Tritanopia (blue-blind)

#007383

Achromatopsia (no color)

#636363

Design tokens & code

CSS

--color: #3f5eba;
/* rgb */ color: rgb(63, 94, 186);
/* oklch */ color: oklch(50.8% 0.149 267.0);

Tailwind

colors: {
  custom: {
    50: '#818bcf',
    500: '#3f5eba',
    950: '#000000',
  },
}

SCSS

$custom: #3f5eba;
$custom-light: #818bcf;
$custom-dark: #000000;

JSON

{
  "hex": "#3f5eba",
  "rgb": {
    "r": 63,
    "g": 94,
    "b": 186
  },
  "hsl": {
    "h": 224.878,
    "s": 49.398,
    "l": 48.824
  },
  "oklch": {
    "l": 0.50823,
    "c": 0.14934,
    "h": 267
  },
  "luminance": 0.12607
}

Semantic roles & 50–950 ramp

primary

#3F5EBA

secondary

#C8B98D

accent

#B64FD9

background

#F8F8FC

surface

#F0F0F9

border

#CBCBD2

text

#0B0B14

muted

#7C7C82

Preview Lab

Preview with #3F5EBA

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

Preview Lab → · Contrast checker → · Palette generator →