#3B6CD3#3B6CD3

#3B6CD3 is a mid, vivid blue. Relative luminance 0.164; OKLCH L 55.3% C 0.168 H 263.0°. Best body text is #FFFFFF at 4.92:1 contrast (WCAG AA passes).

Color values

HEX	#3B6CD3
RGB	rgb(59, 108, 211)
HSL	hsl(221, 63%, 53%)
HSV	hsv(221, 72%, 83%)
CMYK	cmyk(72%, 48.8%, 0%, 17.3%)
CIE-LAB	lab(47.44, 18.50, -57.96)
CIE-LCH	lch(47.44, 60.84, 287.70°)
OKLab	oklab(55.32% -0.0205 -0.1664)
OKLCH	oklch(55.32% 0.168 263)
XYZ	xyz(18.9199, 16.3561, 63.7753)
Luminance	0.1636 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3B6CD3 #D3A23B

analogous

#3BB8D3 #3B6CD3 #563BD3

triadic

#3B6CD3 #D33B6C #6CD33B

tetradic

#3B6CD3 #D33BB8 #D3A23B #3BD356

square

#3B6CD3 #D33BB8 #D3A23B #3BD356

split-complementary

#3B6CD3 #D3563B #B8D33B

monochromatic

#1B3979 #2651AB #3B6CD3 #6D91DE #9FB7E9

Accessibility & contrast

On white

4.92

#3B6CD3 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.27

#3B6CD3 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3B6CD3

4.92:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3B6CD3	#FFFFFF	#000000	##FFFFFF
##3B6CD3	1.00	4.92	4.27	4.92
#FFFFFF	4.92	1.00	21.00	1.00
#000000	4.27	21.00	1.00	21.00
##FFFFFF	4.92	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3178D7

Deuteranopia (green-blind)

#006AD1

Tritanopia (blue-blind)

#008495

Achromatopsia (no color)

#717171

Design tokens & code

CSS

--color: #3b6cd3;
/* rgb */ color: rgb(59, 108, 211);
/* oklch */ color: oklch(55.3% 0.168 263.0);

Tailwind

colors: {
  custom: {
    50: '#8495e1',
    500: '#3b6cd3',
    950: '#000000',
  },
}

SCSS

$custom: #3b6cd3;
$custom-light: #8495e1;
$custom-dark: #000000;

JSON

{
  "hex": "#3b6cd3",
  "rgb": {
    "r": 59,
    "g": 108,
    "b": 211
  },
  "hsl": {
    "h": 220.658,
    "s": 63.333,
    "l": 52.941
  },
  "oklch": {
    "l": 0.55319,
    "c": 0.16769,
    "h": 263
  },
  "luminance": 0.16358
}

Semantic roles & 50–950 ramp

primary

#3B6CD3

secondary

#D6C194

accent

#B141E6

background

#F8F9FD

surface

#F0F1FB

border

#CBCBD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3B6CD3

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

Preview Lab → · Contrast checker → · Palette generator →