#3670D1#3670D1

#3670D1 is a mid, vivid blue. Relative luminance 0.170; OKLCH L 55.8% C 0.162 H 260.1°. Best body text is #FFFFFF at 4.78:1 contrast (WCAG AA passes).

Color values

HEX	#3670D1
RGB	rgb(54, 112, 209)
HSL	hsl(218, 63%, 52%)
HSV	hsv(218, 74%, 82%)
CMYK	cmyk(74.2%, 46.4%, 0%, 18%)
CIE-LAB	lab(48.23, 14.59, -55.56)
CIE-LCH	lch(48.23, 57.44, 284.71°)
OKLab	oklab(55.83% -0.0278 -0.1594)
OKLCH	oklch(55.83% 0.162 260.1)
XYZ	xyz(18.8200, 16.9740, 62.5937)
Luminance	0.1698 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#3670D1 #D19736

analogous

#36BED1 #3670D1 #4A36D1

triadic

#3670D1 #D13670 #70D136

tetradic

#3670D1 #D136BE #D19736 #36D14A

square

#3670D1 #D136BE #D19736 #36D14A

split-complementary

#3670D1 #D14A36 #BED136

monochromatic

#1A3B72 #2655A4 #3670D1 #6893DC #9AB7E8

Accessibility & contrast

On white

4.78

#3670D1 on #FFFFFF

AA ✓AA large ✓AAA ✗

On black

4.40

#3670D1 on #000000

AA ✗AA large ✓AAA ✗

Best text color

#FFFFFF on #3670D1

4.78:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##3670D1	#FFFFFF	#000000	##FFFFFF
##3670D1	1.00	4.78	4.40	4.78
#FFFFFF	4.78	1.00	21.00	1.00
#000000	4.40	21.00	1.00	21.00
##FFFFFF	4.78	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#3C7AD5

Deuteranopia (green-blind)

#156CCF

Tritanopia (blue-blind)

#008796

Achromatopsia (no color)

#727272

Design tokens & code

CSS

--color: #3670d1;
/* rgb */ color: rgb(54, 112, 209);
/* oklch */ color: oklch(55.8% 0.162 260.1);

Tailwind

colors: {
  custom: {
    50: '#8198e0',
    500: '#3670d1',
    950: '#000000',
  },
}

SCSS

$custom: #3670d1;
$custom-light: #8198e0;
$custom-dark: #000000;

JSON

{
  "hex": "#3670d1",
  "rgb": {
    "r": 54,
    "g": 112,
    "b": 209
  },
  "hsl": {
    "h": 217.548,
    "s": 62.753,
    "l": 51.569
  },
  "oklch": {
    "l": 0.55831,
    "c": 0.16179,
    "h": 260.1
  },
  "luminance": 0.16976
}

Semantic roles & 50–950 ramp

primary

#3670D1

secondary

#D3BA8F

accent

#A942E6

background

#F8F9FD

surface

#F0F2FB

border

#CBCCD4

text

#0C0D15

muted

#7D7E83

Preview Lab

Preview with #3670D1

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

Preview Lab → · Contrast checker → · Palette generator →