#3B6FDE#3B6FDE

#3B6FDE is a mid, vivid blue. Relative luminance 0.176; OKLCH L 56.7% C 0.179 H 263.1°. Best body text is #FFFFFF at 4.65:1 contrast (WCAG AA passes).

Color values

HEX	#3B6FDE
RGB	rgb(59, 111, 222)
HSL	hsl(221, 71%, 55%)
HSV	hsv(221, 73%, 87%)
CMYK	cmyk(73.4%, 50%, 0%, 12.9%)
CIE-LAB	lab(48.97, 20.62, -61.73)
CIE-LCH	lch(48.97, 65.09, 288.47°)
OKLab	oklab(56.72% -0.0216 -0.1775)
OKLCH	oklch(56.72% 0.179 263.1)
XYZ	xyz(20.6682, 17.5703, 71.3952)
Luminance	0.1757 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6FDE #DEAA3B

analogous

#3BC0DE #3B6FDE #593BDE

triadic

#3B6FDE #DE3B6F #6FDE3B

tetradic

#3B6FDE #DE3BC0 #DEAA3B #3BDE59

square

#3B6FDE #DE3BC0 #DEAA3B #3BDE59

split-complementary

#3B6FDE #DE593B #C0DE3B

monochromatic

#173B88 #2052BC #3B6FDE #6F95E7 #A4BCF0

Accessibility & contrast

On white

4.65

#3B6FDE on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.51

#3B6FDE on #000000

AA ✓AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6FDE

4.65:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6FDE	#FFFFFF	#000000	##FFFFFF
##3B6FDE	1.00	4.65	4.51	4.65
#FFFFFF	4.65	1.00	21.00	1.00
#000000	4.51	21.00	1.00	21.00
##FFFFFF	4.65	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2B7CE2

Deuteranopia (green-blind)

#006DDC

Tritanopia (blue-blind)

#008A9C

Achromatopsia (no color)

#747474

Design tokens & code

CSS

--color: #3b6fde;
/* rgb */ color: rgb(59, 111, 222);
/* oklch */ color: oklch(56.7% 0.179 263.1);

Tailwind

colors: {
  custom: {
    50: '#8697e9',
    500: '#3b6fde',
    950: '#000000',
  },
}

SCSS

$custom: #3b6fde;
$custom-light: #8697e9;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6fde",
  "rgb": {
    "r": 59,
    "g": 111,
    "b": 222
  },
  "hsl": {
    "h": 220.859,
    "s": 71.179,
    "l": 55.098
  },
  "oklch": {
    "l": 0.56719,
    "c": 0.1788,
    "h": 263.1
  },
  "luminance": 0.17573
}

Semantic roles & 50–950 ramp

primary

#3B6FDE

secondary

#DDC798

accent

#B43AEE

background

#F9F9FE

surface

#F1F2FD

border

#CBCCD5

text

#0D0D16

muted

#7E7E84

Preview Lab

Preview with #3B6FDE

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

Preview Lab → · Contrast checker → · Palette generator →