#3F6BBE#3F6BBE

#3F6BBE is a mid, vivid blue. Relative luminance 0.153; OKLCH L 53.9% C 0.139 H 261.8°. Best body text is #FFFFFF at 5.17:1 contrast (WCAG AA passes).

Color values

HEX	#3F6BBE
RGB	rgb(63, 107, 190)
HSL	hsl(219, 50%, 50%)
HSV	hsv(219, 67%, 75%)
CMYK	cmyk(66.8%, 43.7%, 0%, 25.5%)
CIE-LAB	lab(46.03, 12.12, -48.16)
CIE-LCH	lch(46.03, 49.66, 284.13°)
OKLab	oklab(53.86% -0.0197 -0.1375)
OKLCH	oklch(53.86% 0.139 261.8)
XYZ	xyz(16.5986, 15.2882, 50.7814)
Luminance	0.1529 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3F6BBE #BE923F

analogous

#3FABBE #3F6BBE #533FBE

triadic

#3F6BBE #BE3F6B #6BBE3F

tetradic

#3F6BBE #BE3FAB #BE923F #3FBE53

square

#3F6BBE #BE3FAB #BE923F #3FBE53

split-complementary

#3F6BBE #BE533F #ABBE3F

monochromatic

#213762 #305190 #3F6BBE #6C8ECE #9AB1DD

Accessibility & contrast

On white

5.17

#3F6BBE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.06

#3F6BBE on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3F6BBE

5.17:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3F6BBE	#FFFFFF	#000000	##FFFFFF
##3F6BBE	1.00	5.17	4.06	5.17
#FFFFFF	5.17	1.00	21.00	1.00
#000000	4.06	21.00	1.00	21.00
##FFFFFF	5.17	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#4373C1

Deuteranopia (green-blind)

#2E68BC

Tritanopia (blue-blind)

#007E8B

Achromatopsia (no color)

#6D6D6D

Design tokens & code

CSS

--color: #3f6bbe;
/* rgb */ color: rgb(63, 107, 190);
/* oklch */ color: oklch(53.9% 0.139 261.8);

Tailwind

colors: {
  custom: {
    50: '#8194d2',
    500: '#3f6bbe',
    950: '#000000',
  },
}

SCSS

$custom: #3f6bbe;
$custom-light: #8194d2;
$custom-dark: #000000;

JSON

{
  "hex": "#3f6bbe",
  "rgb": {
    "r": 63,
    "g": 107,
    "b": 190
  },
  "hsl": {
    "h": 219.213,
    "s": 50.198,
    "l": 49.608
  },
  "oklch": {
    "l": 0.53862,
    "c": 0.13896,
    "h": 261.8
  },
  "luminance": 0.1529
}

Semantic roles & 50–950 ramp

primary

#3F6BBE

secondary

#C9B58F

accent

#A94EDA

background

#F8F9FC

surface

#F0F1F9

border

#CBCBD2

text

#0B0D14

muted

#7C7E82

Preview Lab

Preview with #3F6BBE

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

Preview Lab → · Contrast checker → · Palette generator →