#3F6BE2#3F6BE2

#3F6BE2 is a mid, vivid blue. Relative luminance 0.171; OKLCH L 56.4% C 0.188 H 265.4°. Best body text is #FFFFFF at 4.76:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BE2
RGB	rgb(63, 107, 226)
HSL	hsl(224, 74%, 57%)
HSV	hsv(224, 72%, 89%)
CMYK	cmyk(72.1%, 52.7%, 0%, 11.4%)
CIE-LAB	lab(48.34, 25.10, -65.01)
CIE-LCH	lch(48.34, 69.69, 291.11°)
OKLab	oklab(56.37% -0.015 -0.1871)
OKLCH	oklch(56.37% 0.188 265.4)
XYZ	xyz(21.0302, 17.0609, 74.1215)
Luminance	0.1706 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BE2 #E2B63F

analogous

#3FBCE2 #3F6BE2 #653FE2

triadic

#3F6BE2 #E23F6B #6BE23F

tetradic

#3F6BE2 #E23FBC #E2B63F #3FE265

square

#3F6BE2 #E23FBC #E2B63F #3FE265

split-complementary

#3F6BE2 #E2653F #BCE23F

monochromatic

#163791 #1E4BC6 #3F6BE2 #7494EA #A9BDF2

Accessibility & contrast

On white

4.76

#3F6BE2 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.41

#3F6BE2 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BE2

4.76:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BE2	#FFFFFF	#000000	##FFFFFF
##3F6BE2	1.00	4.76	4.41	4.76
#FFFFFF	4.76	1.00	21.00	1.00
#000000	4.41	21.00	1.00	21.00
##FFFFFF	4.76	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#137BE6

Deuteranopia (green-blind)

#006CE0

Tritanopia (blue-blind)

#00889C

Achromatopsia (no color)

#737373

Design tokens & code

CSS

--color: #3f6be2;
/* rgb */ color: rgb(63, 107, 226);
/* oklch */ color: oklch(56.4% 0.188 265.4);

Tailwind

colors: {
  custom: {
    50: '#8894ec',
    500: '#3f6be2',
    950: '#000000',
  },
}

SCSS

$custom: #3f6be2;
$custom-light: #8894ec;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6be2",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 226
  },
  "hsl": {
    "h": 223.804,
    "s": 73.756,
    "l": 56.667
  },
  "oklch": {
    "l": 0.56366,
    "c": 0.18773,
    "h": 265.4
  },
  "luminance": 0.17063
}

Semantic roles & 50–950 ramp

primary

#3F6BE2

secondary

#E0CE9D

accent

#BE37F0

background

#F9F9FE

surface

#F1F1FD

border

#CBCBD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3F6BE2

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

Preview Lab → · Contrast checker → · Palette generator →