#3B6BD5#3B6BD5

#3B6BD5 is a mid, vivid blue. Relative luminance 0.162; OKLCH L 55.3% C 0.172 H 263.5°. Best body text is #FFFFFF at 4.94:1 contrast (WCAG AA passes).

Color values

HEX	#3B6BD5
RGB	rgb(59, 107, 213)
HSL	hsl(221, 65%, 53%)
HSV	hsv(221, 72%, 84%)
CMYK	cmyk(72.3%, 49.8%, 0%, 16.5%)
CIE-LAB	lab(47.30, 19.87, -59.33)
CIE-LCH	lch(47.30, 62.57, 288.51°)
OKLab	oklab(55.25% -0.0195 -0.1705)
OKLCH	oklch(55.25% 0.172 263.5)
XYZ	xyz(19.0673, 16.2472, 65.0690)
Luminance	0.1625 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6BD5 #D5A53B

analogous

#3BB8D5 #3B6BD5 #583BD5

triadic

#3B6BD5 #D53B6B #6BD53B

tetradic

#3B6BD5 #D53BB8 #D5A53B #3BD558

square

#3B6BD5 #D53BB8 #D5A53B #3BD558

split-complementary

#3B6BD5 #D5583B #B8D53B

monochromatic

#1A397B #2550AE #3B6BD5 #6D91E0 #A0B7EB

Accessibility & contrast

On white

4.94

#3B6BD5 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.25

#3B6BD5 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6BD5

4.94:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6BD5	#FFFFFF	#000000	##FFFFFF
##3B6BD5	1.00	4.94	4.25	4.94
#FFFFFF	4.94	1.00	21.00	1.00
#000000	4.25	21.00	1.00	21.00
##FFFFFF	4.94	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#2C78D9

Deuteranopia (green-blind)

#0069D3

Tritanopia (blue-blind)

#008496

Achromatopsia (no color)

#707070

Design tokens & code

CSS

--color: #3b6bd5;
/* rgb */ color: rgb(59, 107, 213);
/* oklch */ color: oklch(55.3% 0.172 263.5);

Tailwind

colors: {
  custom: {
    50: '#8494e3',
    500: '#3b6bd5',
    950: '#000000',
  },
}

SCSS

$custom: #3b6bd5;
$custom-light: #8494e3;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6bd5",
  "rgb": {
    "r": 59,
    "g": 107,
    "b": 213
  },
  "hsl": {
    "h": 221.299,
    "s": 64.706,
    "l": 53.333
  },
  "oklch": {
    "l": 0.55253,
    "c": 0.17158,
    "h": 263.5
  },
  "luminance": 0.16249
}

Semantic roles & 50–950 ramp

primary

#3B6BD5

secondary

#D7C295

accent

#B340E8

background

#F8F9FE

surface

#F0F1FC

border

#CBCBD5

text

#0C0D15

muted

#7D7E84

Preview Lab

Preview with #3B6BD5

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

Preview Lab → · Contrast checker → · Palette generator →